You should initialize the SeaText script after your single-page application’s (SPA) router has finished settling on a route, and before the first render of any translatable or intent-adaptable content. Running the script too early will cause it to scan stale route content or incomplete DOM elements, leading to missed translations or unmodified copy. Running it too late will cause visible content flashes of untranslated text, or require extra work to modify already-painted elements without layout shift.

This timing rule applies to all SPA frameworks including React, Vue, and Angular, and covers both initial page loads and client-side route changes. The checklist below will help you confirm your setup is correct, plus we cover edge cases and common mistakes to avoid.

Why Correct SPA Script Timing Matters

SPAs do not perform full page reloads when users navigate between routes. Instead, they dynamically inject new content into the existing DOM. If you only run the SeaText script on the initial app load, it will only process the first route’s content. All subsequent navigations will have unmodified, untranslated, or non-intent-matched copy.

If you run the script before the router settles on a route, it may scan the previous route’s leftover DOM elements, or scan incomplete content that is still loading async data (like product details or blog posts). This leads to partial or broken modifications. If you run it after the first render, users will see a flash of unmodified content, which hurts user experience and can trigger Cumulative Layout Shift (CLS) penalties from search engines.

SeaText SPA Initialization Readiness Checklist

Use this checklist to confirm you are running the script at the correct time for your SPA:

• Router settlement confirmed: Your SPA’s router has finished resolving the current route, including any async data fetching for the page (e.g., product details, blog content, user account data). No loading spinners or redirects are in progress.
• Pre-render window open: The first render of translatable content (headlines, body copy, CTAs, product blocks, offers) has not yet occurred. SeaText will modify content before it is painted to the screen to avoid layout shifts.
• Snippet placed in the correct entry point: The SeaText script tag is inserted in your app’s core initialization file: either the <body> of your root index.html, or the main JavaScript/TypeScript file where your framework mounts the application (e.g., main.tsx for React, main.js for Vue).
• Bundler configuration verified: Your app’s build tool (Webpack, Vite, Angular CLI) is not tree-shaking or removing the external SeaText script tag during the build process.
• Local storage permissions enabled: Your application and the user’s browser have local storage enabled, as SeaText stores a session ID in local storage to track visitor context and avoid repeated processing.
• Cross-origin compatibility checked (if applicable): If your SPA operates across multiple domains or subdomains, you have confirmed SeaText is compatible with your cross-origin setup to avoid script loading errors.

Signs You Should Wait to Initialize SeaText

Delay running the script if any of the following are true, even if your app has loaded the initial route:

• Your router is still displaying a loading state or skeleton screen instead of final, user-facing content.
• Async data requests for the current page are still pending (check the Network tab in your browser’s developer tools to confirm all page data has loaded).
• You are using a framework with server-side rendering (SSR) or static site generation (SSG) like Next.js or Nuxt, and client-side hydration is not yet complete. Running SeaText before hydration can cause conflicts with pre-rendered content.
• You are implementing a route guard or redirect that will send the user to a different route before the current page finishes loading.

Exception: Handling Client-Side SPA Navigation

The initial SeaText script run only covers the first page load of your SPA. Because SPAs do not reload the page when users click internal links, you will need to re-run SeaText after every client-side route change to process new content.

To do this, add a route change listener for your specific framework that triggers SeaText’s initialization function after the new route’s content is fully loaded and before it is rendered. For example, in React with React Router, you would call the SeaText init function in a useEffect hook that runs when the current route changes, after all async data for the new route has resolved. This ensures every page in your SPA gets the same intent matching, translation, and bot protection as the initial load.

How SeaText’s SPA Script Works

SeaText’s SPA integration uses a lightweight, async script tag by default, so it does not block your app’s initial page load. The script is under 15KB, and executes in under 15ms before the first visual paint of your content, eliminating layout shift (CLS=0) and preserving high PageSpeed scores.

Once initialized, SeaText scans the DOM for translatable and intent-adaptable elements: headlines, body copy, buttons, product blocks, offers, and CTAs. It can rewrite this content to match the visitor’s traffic source (e.g., matching Google Ads keywords to landing page copy) or translate it into up to 125 languages for global audiences. It also runs bot detection on paid traffic to build refund evidence for invalid clicks from Google, Meta, and other ad platforms.

The script stores a unique session ID in the user’s local storage to avoid reprocessing the same visitor on subsequent route changes, reducing unnecessary compute load on your app.

Common SPA Implementation Mistakes to Avoid

These are the most frequent errors teams make when adding SeaText to SPAs:

• Placing the snippet inside a re-rendering component: Adding the script tag inside a React, Vue, or Angular component that re-renders frequently will cause the script to run multiple times, leading to duplicate processing or errors. Always place the snippet in your app’s root entry point.
• Forgetting to handle client-side route changes: Assuming the initial script run covers all SPA pages will leave inner pages unoptimized. Add route change listeners to re-trigger SeaText on navigation.
• Running the script before async content loads: If your page fetches content from an API after the initial route loads, wait for that data to resolve before running SeaText, so it scans the full, final content.
• Disabling local storage: If your app or browser blocks local storage, SeaText cannot store its session ID, leading to repeated processing and potential errors.

Frequently Asked Questions

1. Do I need to re-run the SeaText script on every SPA route change?
   Yes. The initial script run only processes the first page loaded in your SPA. For all client-side navigations (clicks that do not trigger a full page reload), you need to re-initialize SeaText after the new route’s content is fully loaded to ensure all pages are optimized.
2. Will running SeaText in my SPA cause layout shifts or hurt PageSpeed scores?
   No. SeaText executes in under 15ms before the first visual paint, and its script is under 15KB. It does not cause Cumulative Layout Shift (CLS) and preserves high PageSpeed scores, per SeaText’s performance testing.
3. What happens if I run the script before my SPA’s async data finishes loading?
   SeaText will scan incomplete or placeholder content, leading to partial modifications, missing translations, or incorrect intent matching. Always wait for all async data for the current route to resolve before initializing the script.
4. Can I use SeaText with my existing translation setup for SPAs?
   Yes. SeaText can work alongside existing translation tools, but you will need to configure its scope to avoid conflicting with your current translation logic. Check the SeaText documentation for details on custom AI scope configuration.
5. How do I test if SeaText is running at the right time in my SPA?
   Open your browser’s Developer Tools (F12) and check the Console and Network tabs after navigating to a route. You should see the SeaText script load without errors, and the page content should be modified before it is painted to the screen (no flash of unmodified content).

Running Seatext AI on a staging environment lets you test translations, AI agents, and integrations safely before going live. This prevents broken layouts, incorrect translations, or performance issues from reaching your production site. The process uses environment-specific settings to keep staging isolated.

Why Test in Staging First?

A staging environment mirrors your production site but is separate from live traffic. Testing Seatext AI here helps catch errors early. For example, if a translation glossary or AI agent behaves unexpectedly, you can fix it without impacting users. Staging also lets you verify that the JavaScript snippet loads correctly and doesn't interfere with your site's functionality.

Ignoring staging validation can lead to poor user experiences. Broken translations or slow page loads might hurt conversions or SEO. By testing first, you ensure a smooth rollout.

Step-by-Step Staging Readiness Checklist

Follow this checklist to set up Seatext AI on staging. Each step builds on the previous one.

1. Create a Staging Environment: Set up a staging domain or subdomain (e.g., staging.yourdomain.com) that mirrors your production site. Ensure it has the same content and structure.
2. Get a Separate API Key: In the Seatext dashboard, generate an environment-specific API key for staging. This keeps data isolated from production.
3. Configure Domain Allowlists: Add your staging domain to the allowlist in Seatext settings. This prevents the AI from processing live traffic during tests.
4. Install the JavaScript Snippet: Insert the Seatext snippet into your staging site. For SPAs like React, identify the entry point (e.g., index.html) and add the snippet there. Ensure it loads asynchronously to avoid blocking page performance.
5. Test Translations and AI Agents: Activate specific AI agents (e.g., Translation Agent) on staging. Use separate glossaries or QA workflows to review outputs without affecting production data.
6. Verify Performance and Functionality: Check that the script loads without errors in browser Developer Tools. Confirm local storage permissions are set, as Seatext uses local storage for IDs.
7. Run QA Workflows: Use the dashboard's QA features to approve translations or changes in staging before promoting to production.

Configuring Environment-Specific Settings

Seatext AI supports multiple environments through API keys and domain settings. In the dashboard, you can create separate projects or use environment tags. Each environment has its own glossary, translation memory, and AI agent configurations. This separation ensures that changes in staging don't leak to production.

When installing the snippet, pay attention to cross-origin considerations. If your staging site interacts with multiple domains, verify compatibility to avoid errors. The snippet is designed to work asynchronously, maintaining page load performance across environments.

Key Facts for Staging Deployment

Common Pitfalls and How to Avoid Them

Teams often skip staging validation or forget to isolate environments. Here are key pitfalls and solutions:

• Pitfall: Using the same API key for staging and production. Fix: Create a dedicated API key for staging in the Seatext dashboard.
• Pitfall: Not allowing staging domains. Fix: Add staging domains to the allowlist under domain settings.
• Pitfall: Overlooking local storage permissions. Fix: Ensure your staging app grants access to local storage, as required by the script.
• Pitfall: Skipping QA workflows. Fix: Use the dashboard's QA features to review translations before promoting to production.

Verification Steps Before Going Live

After setting up staging, verify everything works before pushing to production. Open your staging site in a browser and use Developer Tools (F12) to check the Console and Network tabs. Ensure the Seatext script loads without errors. Test a few pages to confirm translations and AI agents behave as expected. Finally, review any changes in the dashboard's staging environment and approve them via QA workflows.

If issues arise, refer to the integration documentation for troubleshooting steps. Common checks include verifying API key validity, domain allowlists, and snippet placement.

How Seatext AI Can Help with Staging

Seatext AI simplifies staging by providing tools for environment management. The dashboard supports multiple projects or environments, each with independent settings. For example, you can use the Translation Agent on staging with a test glossary to preview localized content. This helps ensure translations are accurate and contextually appropriate before going live. However, note that Seatext's performance and behavior depend on correct configuration—always verify setup in staging first to avoid production issues.

Practical Scenarios for Staging Use

Consider these scenarios where staging validation is crucial:

• New Market Launch: Test translations for a new language in staging. Use the Translation Agent to create localized versions, then review them for accuracy.
• AI Agent Deployment: Before activating the Bot Refund Agent or Google Ads Agent on production, test them on staging to ensure they detect issues correctly without affecting live data.
• Site Redesign: When redesigning your site, use staging to check that Seatext AI adapts to new layouts and content structures.

In each case, staging allows safe experimentation and quality assurance.

Limitations and When Advice Does Not Apply

This guidance assumes you have a standard staging environment setup. If your site uses complex SPA frameworks or custom configurations, additional steps might be needed. For example, if your staging environment is not a mirror of production, results may not be reliable. Also, Seatext AI's features like real-time rewriting rely on correct API key and domain settings; misconfigurations can cause failures. Always consult the official documentation for framework-specific instructions.

FAQ on Staging Environments with Seatext AI

Why should I use a staging environment for Seatext AI?
Staging lets you test translations, AI agents, and performance without risking live traffic. It helps catch errors early and ensures a smooth production rollout.

How do I set up a separate API key for staging?
In the Seatext dashboard, navigate to settings and create a new API key specifically for your staging environment. Use this key when installing the snippet on staging.

What happens if I forget to allowlist my staging domain?
The Seatext script may fail to load or process data correctly on staging. Always add staging domains to the allowlist in domain settings.

Can I use the same glossary for staging and production?
It's recommended to use separate glossaries for each environment to avoid unintended changes. The dashboard supports this with environment-specific glossaries.

How do I verify that Seatext AI is working in staging?
Open your staging site, check the browser's Developer Tools for script errors, and test key features like translation or AI agents. Use the dashboard's QA workflows to approve changes.

Are there any cost implications for running Seatext AI on staging?
Pricing is based on word volume and languages, so staging usage may count toward your plan. Check with Seatext to understand how staging environments affect billing.

What should I do after successful staging tests?
Promote the validated settings to production by updating API keys and domain allowlists. Use the dashboard to switch environments or merge changes.

Why these mistakes matter at scale

SeaText AI rewrites headlines, buttons, and full page copy in the browser for up to 125 languages and matches landing pages to ad keywords in under 15 ms. When you roll it out across thousands of URLs, a single misstep — like caching the wrong variant or letting the script rewrite an admin dashboard — replicates instantly across every market. The result: broken translations, skewed A/B tests, wasted ad spend, and hreflang signals that confuse Google. Below are the ten mistakes we see most often in enterprise deployments, with the specific prevention step for each.

1. Skipping staging environment validation

SeaText's snippet loads asynchronously and writes an ID to local storage. In a staging or QA environment that shares the same domain cookies or local storage namespace as production, the script can pollute live visitor data or serve test variants to real users. The documentation notes the snippet includes the async attribute and uses local storage, so isolation matters.

Prevention: Deploy the snippet to a dedicated staging subdomain (e.g., staging.example.com) with a separate SeaText project ID. Verify script load, variant rendering, and local storage writes in browser DevTools before promoting to production.

2. Not excluding admin, internal, or authenticated URLs

The AI rewrites every text node it sees unless you restrict its scope. If the snippet runs on /admin, /dashboard, or internal tools, it will translate UI labels, break form validation, and leak proprietary copy into translation memory.

Prevention: Use the "AI scope" configuration in the Main AI Hub to define URL include/exclude patterns. Add a rule that blocks any path containing /admin, /internal, /api, or paths behind authentication. Test with a logged-in session to confirm no rewrites occur.

3. Ignoring cache-invalidation strategy

SeaText generates variants on the fly and serves them from the browser. If your CDN or service worker caches the HTML response before the script executes, visitors may see stale copy or a flash of untranslated content. The script runs in under 15 ms and is under 15 KB, but it still needs an uncached HTML shell.

Prevention: Configure your CDN to bypass cache for the SeaText snippet request and for any page that carries a ?seatext_variant= query parameter. Set Cache-Control: no-store, must-revalidate on the base HTML for pages that use dynamic rewriting. Verify with a curl -I check that the header is present.

4. Forgetting hreflang alignment

SeaText creates localized versions in up to 125 languages without a separate site per market. Each language version needs a correct hreflang tag pointing to the same canonical URL with the language parameter. If the tags are missing or point to the wrong locale, Google may index the wrong language or treat pages as duplicates.

Prevention: After enabling the Translation Agent, audit the rendered <head> for each target language. Ensure hreflang="x-default" points to the primary language and each language code matches ISO 639-1 (e.g., de, ja, pt-BR). Use Search Console's International Targeting report to catch mismatches early.

5. Underestimating QA effort for low-resource languages

High-resource languages (English, Spanish, German) translate cleanly. Low-resource languages — think Welsh, Amharic, or Lao — often produce awkward phrasing, gender mismatches, or broken RTL layouts. The FAQ notes you can use SeaText alongside existing translations, but you still need human review for brand-critical pages.

Prevention: Tier your markets: Tier 1 (top 10 revenue languages) get full human QA; Tier 2 get automated spot-checks; Tier 3 rely on SeaText's built-in quality filters. Allocate 2–3 hours per 1,000 words for Tier 1 review. Track error rates per language in the Variants Editor to adjust tier assignments quarterly.

6. Misconfiguring AI scope for single-page applications

In React, Vue, or Angular apps, the snippet must load before the framework mounts. If you inject it after hydration, the first paint misses rewrites. The SPA guide says to place the snippet in index.html or the equivalent initialization section, then verify in Console and Network tabs that the script loads without errors.

Prevention: Add the snippet directly in public/index.html (React) or index.html (Vue/Angular) inside <body>. Run npm start / ng serve and confirm the SeaText network request returns 200. For server-side rendered apps (Next.js, Nuxt), use a custom _document or app.html to inject before hydration.

7. Overlooking cross-origin issues in multi-domain setups

If your SPA interacts with multiple domains — say app.example.com and checkout.example.com — the script may face cross-origin restrictions when reading local storage or sending variant data. The documentation explicitly warns: "If your SPA interacts with multiple domains, ensure that the SEATEXT AI script is compatible and does not face cross-origin issues."

Prevention: Host the SeaText snippet from a single origin (e.g., cdn.seatext.com) and set Access-Control-Allow-Origin headers to include all subdomains. Use the same project ID across domains so local storage keys stay consistent. Test a full funnel crossing domain boundaries in an incognito window.

8. Failing to plan variant management at scale

SeaText's Optimization Process creates and tests variants automatically. Without a governance model, you end up with hundreds of orphan variants, conflicting headlines, and no clear owner for approval. The Variants Editor lets you manage variants, but it needs process.

Prevention: Define a variant lifecycle: Draft → QA → Approved → Live → Archived. Assign a "variant owner" per product line. Use naming conventions like homepage-hero-v3-en-de. Schedule a monthly cleanup to archive variants with < 100 impressions or statistical insignificance.

9. Not setting up per-language and per-market tracking

The Translation Agent "tracks results by language and market." If you don't configure UTM parameters, GA4 events, or SeaText's own tracking by language code, you cannot measure ROI per market. The same applies to the Google Ads Agent, which "tracks results by page, keyword, and version."

Prevention: In the Main AI Hub, enable "Track by language" and "Track by market" toggles. Map each language code to a GA4 custom dimension. For paid traffic, ensure utm_term or ValueTrack {keyword} passes through to the landing page so the Google Ads Agent can attribute conversions to the rewritten headline.

10. Skipping bot protection configuration for paid traffic

SeaText's Bot Refund Agent "detects bots in paid traffic, then builds the proof you need to request money back from Google and Meta." If you run Google Ads or Meta campaigns without activating this agent, you pay for invalid clicks and lose the evidence needed for refunds. The agent "saves a record of every suspicious session and turns that evidence into a refund-ready report."

Prevention: Activate the Bot Refund Agent before launching any new paid campaign. Connect your Google Ads and Meta Ads accounts in the SeaText dashboard. Verify that the "Bot evidence" report populates after 24 hours of traffic. Submit the first refund request within the platform's 60-day window.

Key facts

Limitations and when this advice does not apply

• Static site generators without a browser runtime (e.g., pure HTML export to S3) cannot run SeaText's client-side rewriting. You need a server-side integration or edge function — not covered in the source pack.
• Pages behind strict CSP that block inline scripts or eval() may prevent the snippet from executing. Test CSP headers in staging.
• Non-HTML content (PDFs, mobile app WebViews without bridge) falls outside SeaText's scope.
• Legal or regulatory copy that must remain verbatim (e.g., financial disclosures, medical labels) should be excluded via AI scope rules; SeaText does not auto-detect regulated text.

Terminology quick reference

• AI scope — URL include/exclude patterns that control which pages SeaText rewrites.
• Variant — A rewritten version of a page element (headline, CTA, paragraph) generated by an AI agent and entered into an A/B test.
• Translation Agent — The autonomous agent that localizes pages into up to 125 languages.
• Google Ads Agent — Rewrites landing page copy to match the search keyword from utm_term or ValueTrack.
• Bot Refund Agent — Detects invalid clicks and builds evidence reports for ad-platform refunds.
• Visitor Source Agent — Matches page content to the referring channel (Google, Meta, email, referral).

FAQ

Can I run SeaText alongside Google Translate or another translation plugin?

The FAQ addresses this directly: "Can I Use Other Translators, Like Google Translate, Together with SEATEXT AI?" The short answer is yes, but you should avoid double-translating the same element. Use AI scope to let SeaText handle marketing copy while the other tool handles user-generated content or support articles.

What if we already have some pages professionally translated?

The FAQ asks: "Can I use Seatext AI for translation if we already have some pages translated?" SeaText can skip URLs you flag as "already localized" via AI scope, or it can overwrite them if you prefer AI consistency. Decide per market and document the choice in your variant governance.

How long does a full enterprise rollout take?

For a 5,000-page site with 20 languages, expect 2–3 weeks: 3 days for snippet deployment and SPA validation, 5 days for AI scope and exclusion rules, 5 days for hreflang and tracking setup, 5 days for Tier 1 QA, and 2 days for bot protection and paid-campaign alignment. Larger sites scale linearly with page count and language tiers.

Does SeaText hurt Core Web Vitals?

No. The script is under 15 KB, runs synchronously in under 15 ms before paint, and produces CLS = 0. The documentation confirms it preserves high PageSpeed scores.

What happens if the SeaText CDN goes down?

The snippet loads asynchronously. If the CDN fails, the page renders normally with your original copy — no blank spaces, no layout shift. Variants simply don't apply until the script loads again.

How do I measure ROI per language?

Enable "Track by language" in the Main AI Hub, map language codes to a GA4 custom dimension, and build a Looker Studio dashboard showing sessions, conversions, and revenue per language. Compare pre- and post-deployment 30-day windows.

Can I A/B test translated variants separately from English variants?

Yes. The Optimization Process runs tests per variant. You can segment results by language in the Variants Editor. Treat each language as its own experiment cohort to avoid pooling low-traffic languages with high-traffic ones.

How SeaText AI Works on Your Infrastructure

SeaText AI integrates through a single JavaScript snippet that you place in your page's <body> tag. The snippet loads with the async attribute, meaning it does not block page rendering. Once loaded, the script communicates with SeaText's cloud infrastructure to fetch translations, run A/B tests, personalize content, and detect bot traffic. Your servers never run the AI models; they only serve the snippet and, optionally, pre-rendered HTML if you use server-side rendering (SSR).

CDN and Edge Caching Requirements

Because the snippet is static and identical for every visitor, it should be served from a CDN edge node. Configure your CDN to cache the snippet with a long Cache-Control header (e.g., max-age=31536000, immutable) and enable Brotli or gzip compression. If you host the snippet yourself instead of using SeaText's CDN, ensure your edge nodes are geographically distributed to match your traffic sources. A cache miss on the snippet adds a round-trip to your origin, which is negligible for a single file but matters at scale.

• Cache the snippet at the edge for at least one year.
• Enable compression (Brotli preferred, gzip fallback).
• Set Access-Control-Allow-Origin: * if the snippet is served from a different domain than your pages.

Origin Bandwidth and Capacity for Translation Fetches

When a visitor lands on a page that needs translation, the SeaText client makes an API call to fetch the translated strings. On a large site with many languages, the first visit to each page-language combination triggers a fetch. Size your origin bandwidth to handle the peak concurrent fetches during traffic spikes (e.g., product launches, flash sales). A typical translation payload is 10–50 KB compressed. For 10,000 concurrent new visitors across 20 languages, expect roughly 200–1,000 MB of outbound traffic in the first minute. Most modern cloud origins (AWS CloudFront, Cloudflare, Vercel, Netlify) handle this without configuration changes.

• Monitor Origin Response Time and 4xx/5xx rates on the translation API endpoint.
• If you self-host the translation cache, provision enough CPU and memory for the cache layer (Redis or in-memory).
• Enable HTTP/2 or HTTP/3 on the origin to multiplex fetches.

Rendering Stack Compatibility

SeaText AI works with any stack that can output the snippet in the initial HTML or inject it before hydration. The documentation explicitly lists Next.js, Nuxt, PHP, Java, .NET, and SPA frameworks (React, Vue, Angular). For SSR frameworks, place the snippet in the shared layout or _document equivalent so it appears on every page. For SPAs, insert the snippet in index.html or the framework's entry point (e.g., main.tsx for React, main.ts for Angular). The snippet must run before your router hydrates so it can rewrite content on the first paint.

• Next.js: Add to pages/_document.js or app/layout.tsx.
• Nuxt: Use app/head or a plugin.
• PHP (Laravel, Symfony): Echo the snippet in the master blade/layout template.
• Java (Spring, JSP): Include in the common JSP/Thymeleaf fragment.
• .NET (ASP.NET Core): Place in _Layout.cshtml or a tag helper.

SPA Framework Considerations

Single-page applications require two extra steps. First, the snippet must be present in the initial index.html so it loads before the framework bootstraps. Second, because SPAs navigate without full page reloads, you must call window.seatext.reinit() (or the equivalent method documented for your version) after each route change so SeaText can translate the new view. The documentation notes that local storage is used to persist a visitor ID; ensure your SPA does not clear localStorage on navigation. Cross-origin issues can arise if your SPA loads assets from multiple subdomains—serve the snippet from the same origin or set appropriate CORS headers.

• Insert snippet in public/index.html (Create React App, Vite) or index.html (Vue CLI, Angular).
• Hook into router events: router.afterEach(() => window.seatext?.reinit()).
• Test with localStorage disabled to confirm graceful degradation.

Security, Privacy, and Cross-Origin Policies

The snippet sets a first-party cookie and writes to localStorage for visitor identification. If your site runs under a strict Content Security Policy (CSP), add script-src 'self' https://cdn.seatext.com; and connect-src 'self' https://api.seatext.com; (adjust domains to match your SeaText plan). For multi-domain setups (e.g., app.example.com and blog.example.com), configure the snippet with the same data-project-id on both domains and ensure Access-Control-Allow-Credentials: true on the API responses so the visitor ID persists across subdomains.

• Update CSP to allow SeaText script and API origins.
• Set SameSite=None; Secure on any SeaText cookies if cross-site requests occur.
• Verify GDPR/CCPA compliance: SeaText acts as a processor; include it in your data-processing addendum.

Performance Monitoring and Verification Checklist

After deployment, verify that the snippet loads without errors and that translation latency stays within your budget. Open DevTools → Network, filter for seatext, and confirm:

1. Snippet loads with HTTP 200 and async attribute present.
2. Translation API calls return 200 OK within 200 ms (p95).
3. No CORS errors in Console.
4. localStorage contains a seatext_visitor_id after first paint.
5. Lighthouse performance score does not drop more than 2 points.

Set up synthetic monitoring (e.g., Datadog, Pingdom, Grafana Cloud) to hit a translated page every 5 minutes from multiple regions. Alert on API latency > 500 ms or error rate > 1%.

Limitations and When This Guidance Does Not Apply

This checklist assumes you use SeaText's standard cloud-hosted AI models. If you opt for an on-premise or dedicated-cloud deployment (enterprise-only), the requirements shift to GPU-enabled Kubernetes clusters, model artifact storage, and internal load balancing—details not covered in the public documentation. The guidance also does not apply if you block all third-party scripts via a strict CSP without exceptions, or if your site runs entirely on edge workers (Cloudflare Workers, Vercel Edge Functions) without a traditional origin; in those cases, you must inject the snippet at the edge runtime instead of the origin HTML.

Key Facts

FAQ

Do I need a larger server or more RAM to run SeaText AI?

No. The AI runs on SeaText's infrastructure. Your server only serves the static snippet and handles occasional API callbacks. Standard hosting plans handle the load.

Can I host the SeaText snippet on my own CDN?

Yes, but you must keep it updated when SeaText releases new versions. Most teams prefer the managed CDN to avoid version drift.

Will SeaText slow down my Core Web Vitals?

The snippet loads asynchronously and is typically < 20 KB gzipped. In practice, LCP and CLS are unaffected. Verify with Lighthouse after deployment.

What if my site uses a strict CSP?

Add SeaText's script and API domains to your script-src and connect-src directives. The exact domains depend on your plan; check the integration dashboard.

Does SeaText work with edge-only deployments (Cloudflare Workers, Vercel Edge)?

Yes, but you must inject the snippet at the edge runtime (e.g., via an HTML rewriter) because there is no origin HTML to modify.

How do I handle translations for 125 languages without exploding my origin traffic?

SeaText caches translations at its edge. Your origin only sees the first request per page-language pair. Enable long cache TTLs on your side as well.

Is there a server-side rendering (SSR) option for SEO-critical pages?

SeaText offers optional SSR support where pre-translated HTML is served from the edge. Contact sales to enable it; it requires a dedicated configuration.

Prerequisites for SPA Integration

Before you troubleshoot, confirm your environment meets the baseline requirements. SeaText AI loads asynchronously via a script tag with the async attribute, so it will not block page rendering. The script writes an identifier to localStorage; your application must permit local storage access in all target browsers. If your SPA serves content from multiple domains or subdomains, ensure the script can operate across those origins without being blocked by CORS policies.

You also need a clear entry point. In most SPAs this is index.html or the main JavaScript/TypeScript file where the framework boots (for example main.tsx in React, main.js in Vue, or main.ts in Angular). The SeaText snippet must be placed inside the <body> of that entry HTML or in the equivalent bootstrap section of your framework.

Step-by-Step Troubleshooting Checklist

1. Open Developer Tools. Press F12, switch to the Console tab, and reload the page. Look for red error messages that reference seatext or the script URL.
2. Check the Network tab. Filter for JS files and confirm the SeaText script returns HTTP 200. A 404 or 403 means the snippet URL is wrong or blocked by a proxy.
3. Verify script placement. View the page source and ensure the snippet appears inside <body> before your framework’s root element mounts. If you injected the snippet via a package manager or build plugin, confirm the build output includes it in the final HTML.
4. Test local storage. In the console run localStorage.setItem('test', '1'). If it throws a security error, your SPA runs in a sandbox (e.g., an iframe with sandbox attribute) that blocks storage. SeaText will fail silently in that case.
5. Inspect cross-origin requests. If your SPA loads assets from a CDN or separate API domain, open the Network tab and check for CORS errors on the SeaText script request. The script must be served with Access-Control-Allow-Origin headers that include your SPA’s origin.
6. Confirm configuration object. SeaText expects a global configuration object (often window.seatextConfig) before the script executes. Verify the object exists and matches the keys documented in the SeaText integration guide.
7. Rebuild and serve. Run your framework’s standard dev command (npm start, npm run serve, ng serve) and repeat steps 1–2. A production build (npm run build then serve the dist folder) can surface minification or chunk-loading issues that don’t appear in dev mode.
8. Functionality check. Once the script loads cleanly, trigger a SeaText feature (for example, a translation or variant test) and verify the DOM updates as expected.

Common Integration Mistakes

• Placing the snippet in <head>. The documentation specifies <body> placement; head placement can cause the script to execute before the DOM is ready, breaking DOM-dependent features.
• Using a bundler that strips async. Some build tools inline or defer scripts differently. Ensure the final HTML still contains <script async src="..."></script>.
• Overwriting localStorage keys. If your app clears local storage on login or route change, SeaText loses its identifier and resets on every navigation.
• Content Security Policy (CSP) blocking inline scripts. SeaText’s snippet is external, but if your CSP includes script-src 'self' without the SeaText domain, the script will be blocked. Add the SeaText CDN origin to your CSP.
• Multiple SeaText instances. Including the snippet in both a layout component and index.html loads the script twice, causing race conditions.

Framework-Specific Guidance

React

In a Create React App or Vite project, paste the snippet into public/index.html inside <body> before <div id="root"></div>. If you use Next.js, add the script to pages/_document.js (Pages Router) or app/layout.tsx with <Script strategy="beforeInteractive" src="..." /> (App Router). After editing, run npm start and verify the console shows no SeaText errors.

Vue.js

For Vue CLI projects, edit public/index.html the same way. In Vite-based Vue apps, the entry HTML is index.html at the project root. If you use Nuxt, add the script via head.script in nuxt.config.ts with tagPosition: 'bodyOpen'. Run npm run dev and check the Network tab for the script load.

Angular

Angular CLI projects use src/index.html. Insert the snippet just before the closing </body> tag. For Angular Universal (SSR), the script must also be present in the server-rendered HTML; add it to server/index.html or use Domino to inject it during server rendering. Run ng serve and confirm the script appears in the browser’s Network waterfall.

Verification Step

After completing the checklist, perform a single end-to-end verification: open the SPA in an incognito window, trigger a SeaText-driven change (for example, switch the UI language or load a test variant), and confirm the change persists after a soft reload (F5). If the change appears and survives reload, the integration is working. If not, revisit the console for new errors and repeat the relevant steps.

Key Facts

Limitations and When This Advice Does Not Apply

This troubleshooting guide covers client-side SPA integration only. It does not address server-side rendering hydration mismatches, native mobile wrappers (Capacitor, React Native WebView), or environments where JavaScript is disabled. If your SPA runs inside a restricted iframe, a browser extension, or a headless CMS preview that strips third-party scripts, the steps above will not resolve the issue. In those cases, consult SeaText support with a HAR file of the failed load.

Terminology

SPA (Single-Page Application)

A web app that loads a single HTML page and dynamically updates content via JavaScript without full page reloads.

Entry point

The HTML or JavaScript file where the application bootstrap begins.

Async script

A script tag with the async attribute that downloads in parallel and executes as soon as it’s ready.

localStorage

A browser API for persisting key-value pairs across sessions; requires user permission in some privacy modes.

CORS (Cross-Origin Resource Sharing)

A browser security mechanism that controls whether a page can request resources from a different origin.

FAQ

Why does SeaText work in development but break after a production build?

Production builds often minify HTML, change script loading order, or apply CSP headers that differ from dev. Re-run the checklist against the built dist or build folder served by a static server.

Can I load SeaText dynamically via import() instead of a script tag?

The official snippet is designed for direct HTML inclusion. Dynamic import may work but is unsupported; you lose the async loading guarantee and local storage initialization timing.

What if my SPA uses a micro-frontend architecture?

Each micro-frontend that needs SeaText must include the snippet in its own entry HTML, or you must ensure the host app loads the script once and exposes the SeaText API globally to all children.

How do I know the script URL is correct?

The snippet provided in the SeaText dashboard contains the current CDN URL. Copy it exactly; do not host the script yourself unless instructed by SeaText support.

Does SeaText work with strict CSP script-src 'self'?

No. You must add the SeaText CDN origin (e.g., https://cdn.seatext.com) to your script-src directive.

What should I send to support if nothing works?

Provide a HAR export from the Network tab, the exact snippet you pasted, your framework and version, and a minimal reproduction repo if possible.

To configure SeaText for a Vue.js SPA, paste the provided JavaScript snippet into your index.html (or the main bootstrap file) so it loads once when the app starts. Then hook into Vue Router's afterEach guard to call window.seatext?.retranslate() (or the equivalent API method) after every navigation. This two-step setup — one-time snippet load plus router-guard re-translation — handles client-side routing, lazy-loaded components, and any DOM mutations that happen after the initial render.

Prerequisites before you start

• A working Vue 2 or Vue 3 project with Vue Router installed (v3 or v4).
• Access to the SeaText dashboard to copy your unique integration snippet (the SEATEXTCODEINTEGRATION block).
• Permission to edit index.html or the main entry file (main.js, main.ts, app.js).
• Local storage enabled in the browser — SeaText stores an anonymous visitor ID there.

Step 1 — Add the snippet at the app entry point

1. Open public/index.html (Vue CLI / Vite default) or the equivalent template file.
2. Paste the SeaText snippet inside the <body> tag, preferably just before the closing </body> so it doesn't block rendering. The snippet loads asynchronously thanks to the async attribute, so page-load performance stays intact.
3. Save and rebuild (npm run build or npm run serve).

Why the entry point? SeaText must initialise once per session. In an SPA the HTML shell loads only once; subsequent "pages" are virtual. Placing the snippet in index.html guarantees it runs before any route components mount.

Step 2 — Listen to Vue Router navigation guards

After the initial load, SeaText has no idea when the virtual URL changes. You must tell it. The pattern is identical for Vue Router 3 and 4; only the import path differs.

Vue Router 4 (Vue 3 default)

// src/router/index.js or .ts
import { createRouter, createWebHistory } from 'vue-router'
const router = createRouter({ history: createWebHistory(), routes: [...] })
router.afterEach((to, from) => {
  // Give Vue a tick to finish DOM updates
  nextTick(() => {
    if (window.seatext && typeof window.seatext.retranslate === 'function') {
      window.seatext.retranslate()
    }
  })
})
export default router

Vue Router 3 (Vue 2)

// src/router.js
import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
const router = new Router({ mode: 'history', routes: [...] })
router.afterEach((to, from, next) => {
  Vue.nextTick(() => {
    if (window.seatext && typeof window.seatext.retranslate === 'function') {
      window.seatext.retranslate()
    }
    next()
  })
})
export default router

nextTick (or Vue.nextTick) ensures the new route's components have rendered before SeaText scans the DOM for translatable nodes.

Step 3 — Handle dynamic content that arrives after route load

Some Vue apps fetch data or render heavy components after the route hook fires (e.g., Suspense, async components, infinite scroll). Two practical options:

• Call retranslate manually inside the component's onMounted or after the async data resolves: window.seatext?.retranslate().
• Use a global event bus (mitt, Vue 3's emits, or a simple window.dispatchEvent) so any component can notify SeaText when new markup lands.

Pick the approach that matches your codebase — both keep SeaText in sync without polling.

Step 4 — Configure AI scope and selectors (optional but recommended)

In the SeaText dashboard under How to configure / AI scope you can limit which DOM nodes the AI touches. For a Vue SPA, add CSS selectors that match your main content containers (e.g., #app > .page-content, .vue-component-root). This prevents the AI from rewriting navigation bars, footers, or third-party widgets that should stay static.

Step 5 — Verify the integration end-to-end

1. Run the dev server (npm run dev or npm run serve).
2. Open Chrome DevTools → Console and Network tabs. Confirm the SeaText script loads with HTTP 200 and no CORS errors.
3. Navigate between several routes. Watch the Console for SeaText: retranslate triggered (or similar log) after each navigation.
4. Switch the SeaText dashboard language selector to a target language. The visible text on each route should update without a full page reload.
5. Check localStorage in Application tab — a seatext_visitor_id key should exist.

If any step fails, see the Common pitfalls section below.

Common pitfalls and how to fix them

Key facts at a glance

Limitations and when this guide does not apply

• Nuxt.js, Quasar, or other meta-frameworks — they have their own plugin/entry systems; adapt the snippet placement accordingly.
• Server-side rendered (SSR) pages — SeaText runs in the browser only; SSR HTML will not be translated until hydration.
• Apps that disable local storage or run in strict privacy modes (e.g., Safari ITP) — SeaText may fall back to session storage or cookie, but behaviour can differ.
• Non-Vue SPAs (React, Angular, Svelte) — the router guard concept is the same, but the API differs; see SeaText docs for framework-specific examples.

Frequently asked questions

Do I need to re-initialise SeaText on every route?

No. The snippet initialises once. You only need to call retranslate() (or the current API equivalent) after the DOM updates.

Can I use SeaText with Vue 2 Options API?

Yes. The router guard lives in the router file, independent of component API style. Call this.$nextTick(() => window.seatext?.retranslate()) inside a component if you prefer component-level control.

What if my app uses hash mode (#/route) instead of history mode?

The same afterEach guard works; hash changes still fire navigation guards.

Does SeaText translate text generated by third-party UI libraries (Vuetify, PrimeVue, etc.)?

Yes, as long as the library renders real DOM text nodes inside the selectors you configured. Shadow DOM or canvas-rendered text is not reachable.

How do I exclude a specific component from translation?

Add a data-seatext-ignore attribute to the component's root element, or refine the AI scope selectors in the dashboard to skip that subtree.

Is there a performance cost to calling retranslate() on every navigation?

SeaText debounces and batches DOM scans. In typical Vue apps the overhead is negligible (< 10 ms). If you have thousands of nodes, narrow the AI scope selectors.

Where do I find my unique integration snippet?

Log into the SeaText dashboard → Installation / Set Up → For SPAs (React and etc). Copy the block labelled SEATEXTCODEINTEGRATION.

Quick answer for Angular SaaS teams

SeaText prices by character volume, agent access, and support level. A medium‑size Angular product — typically 50–200 thousand monthly visitors, multiple landing pages, and active paid campaigns — fits the Professional plan. That tier unlocks the Google Ads Agent, Bot Refund Agent, Translation Agent (125 languages), and Visitor Source Agent, plus API access for custom workflows and team seats for product, marketing, and dev ops. The Enterprise tier adds a named customer success manager, SLA‑backed uptime, custom agent chaining, and higher character caps. Both tiers support the asynchronous snippet installation documented for Angular SPAs.

How SeaText works inside an Angular SPA

SeaText injects a lightweight async script into your index.html or bootstrap module. The script loads after Angular initializes, reads the campaign parameter (UTM, gclid, fbclid, or referrer), and rewrites headlines, CTAs, product blocks, and proof elements before the first paint. Because the snippet uses localStorage for a persistent visitor ID, it survives client‑side route changes without a full reload. The documentation notes three Angular‑specific steps: add the snippet in index.html, run ng serve, then verify in DevTools Console and Network tabs that the script loads without cross‑origin errors.

Decision criteria that matter for a growing SaaS

Typical Angular SaaS scenarios and the tier that fits

Scenario A: Series A startup, 80K monthly visits, heavy Google Ads spend

Primary goal: match every ad keyword to a tailored headline and recover bot‑click budget. The Professional tier covers the Google Ads Agent, Bot Refund Agent, and enough characters for 10–15 landing‑page variants. API access lets the growth team push winning variants into their experimentation platform.

Scenario B: Series B company, 300K visits, expanding to EU and LATAM

Adds the Translation Agent for 125 languages and the Visitor Source Agent to personalize by referrer (Product Hunt, newsletters, partner sites). Character volume stays under 1M, so Professional still fits. If the legal team demands EU‑only data processing, Enterprise adds data‑region selection.

Scenario C: Pre‑IPO, 1M+ visits, multiple product lines, dedicated growth pod

Needs custom agent chaining (e.g., Bot Refund → Google Ads Agent → Translation Agent in one flow), SSO for 50+ users, and a named CSM who joins sprint planning. Enterprise is the only tier that delivers all three.

Integration checklist for Angular teams

1. Paste the SeaText snippet into src/index.html inside the <body> tag.
2. Run ng build --configuration=production and deploy to staging.
3. Open Chrome DevTools → Console → verify no “blocked by CORS” or “localStorage unavailable” errors.
4. Confirm the SeaText badge appears on the first route; navigate to a lazy‑loaded module and confirm the badge persists.
5. In the SeaText dashboard, activate the Google Ads Agent and Bot Refund Agent; add UTM mapping rules for your campaign naming convention.
6. Run a 14‑day free pilot (available on the demo page) and compare conversion lift against your baseline.

Key facts at a glance

Limitations and when this guidance does not apply

• Character limits are not published in the public docs; the 1M figure for Professional comes from the brief and should be confirmed with sales.
• Angular apps that use server‑side rendering (Angular Universal) may need the snippet in both the server template and the client bootstrap — test both paths.
• If your SaaS runs on a strict Content Security Policy, you must add the SeaText domain to script-src and connect-src directives.
• Teams that only need static translation (no A/B testing, no paid‑traffic rewriting) may find a simpler i18n library cheaper.
• The free pilot duration (1 month) and exact start conditions are described on the demo page; verify current terms before planning a QA sprint.

Terminology you’ll see in the dashboard

Variant

A rewritten version of a page element (headline, CTA, product block) that SeaText tests against the original.

Agent

An autonomous AI module (e.g., Google Ads Agent) that activates a specific optimization loop.

Character volume

Total characters across all active variants in a billing month; determines tier eligibility.

Bot Refund Report

A CSV/PDF evidence pack formatted for Google/Meta refund submission.

Visitor Source Agent

Matches page content to the referring channel (paid, email, referral, organic) and rewrites accordingly.

FAQ

Can I stay on the free pilot indefinitely?

No. The pilot runs for one month and is designed to prove lift before billing starts. After the pilot you must choose a paid tier or the agents pause.

Does the Professional tier include the Translation Agent?

Yes. All 20+ agents are included in Professional; Enterprise adds custom chaining and higher rate limits, not additional agents.

How does SeaText handle Angular lazy‑loaded modules?

The snippet persists in localStorage and re‑initializes on each route change. The documentation recommends verifying in DevTools that the script fires after each navigation.

What happens if I exceed the character cap mid‑month?

SeaText stops creating new variants but keeps existing ones live. You’ll receive an email alert and can upgrade or wait for the reset.

Is there a self‑serve downgrade path?

Downgrades are processed at the next billing cycle. Contact support if you need an immediate change.

Can I use SeaText alongside my existing i18n pipeline?

Yes. The Translation Agent can overwrite or supplement your translated strings. The FAQ notes you can run both, but SeaText recommends letting it own the final rendered copy for consistent A/B testing.

What SLA does Professional provide?

Email and chat support with a 24‑hour response target. Enterprise moves to a 4‑hour target and adds a named CSM.

Building a translation layer in Angular means wiring up ngx-translate or a custom service, managing JSON files for every language, handling runtime language switching, and then separately building A/B testing, personalization, and analytics on top. SeaText AI replaces that entire stack with a single asynchronous snippet that translates every page element — headlines, buttons, product copy — into up to 125 languages, runs automatic A/B tests on variants, and even detects bot traffic to reclaim ad spend.

How SeaText AI Integrates with Angular

The integration path is deliberately framework-agnostic. You paste the provided JavaScript snippet into the <body> of your index.html or into the Angular bootstrap section (for example, in main.ts after platformBrowserDynamic().bootstrapModule(AppModule)). The snippet loads asynchronously, so it never blocks Angular’s bootstrap or first paint. Once loaded, SeaText scans the DOM, identifies translatable text nodes, and replaces them with AI-generated variants in the visitor’s language.

Angular-specific considerations from the documentation: the script uses localStorage to store a visitor ID, so ensure your app’s Content Security Policy allows it. If your Angular app spans multiple subdomains, verify cross-origin compatibility — SeaText runs on the page where the snippet loads, so each subdomain needs the snippet or a shared configuration.

No Angular services, pipes, or ngx-translate configuration are required. The translation happens at the DOM level after Angular renders, which means it works with any component library, lazy-loaded modules, or server-side rendering setup (Universal) as long as the snippet executes in the browser.

What a Custom Angular Translation Layer Actually Requires

Most teams start with ngx-translate or Angular’s built-in i18n. That means:

• Extracting every string into translation keys (hundreds to thousands of keys).
• Creating and maintaining JSON or XLIFF files for each target language.
• Setting up a translation workflow — either human translators, agency, or machine translation API with post-editing.
• Implementing language detection, switching, and persistence (usually via a service + localStorage or cookie).
• Handling pluralization, gender, ICU message format, and RTL layouts.
• Testing every language in every component, including lazy-loaded routes.

After that baseline, you still lack conversion optimization. To match SeaText’s A/B testing, you’d need a separate experimentation platform (Google Optimize, VWO, or custom feature flags), variant authoring, statistical significance calculation, and automatic winner promotion. Bot detection and ad-refund evidence? Another vendor or custom analytics pipeline.

Key Trade-offs: Effort, Quality, and Maintenance

Time to first multilingual page

SeaText: minutes after snippet install. Custom: weeks to months depending on string count and translation process.

Translation quality

SeaText uses your existing page context — product descriptions, headlines, proof points — to generate translations that preserve marketing intent, not just literal meaning. A custom layer gives you exact control over every word, but only if you invest in professional translation and QA for each language.

Ongoing cost

Custom layers have hidden costs: developer time for key management, regression testing on every deploy, translation vendor fees, and experimentation tooling. SeaText bundles translation, testing, personalization, and bot protection into a single usage-based price.

Performance

The SeaText snippet loads asynchronously and caches variants in localStorage. It adds ~20–50 KB gzipped and runs after first paint. A custom ngx-translate setup bundles translation files into your JS chunks (increasing initial bundle size) or loads them via HTTP (adding waterfall requests). Both are fast; SeaText avoids bundle bloat.

When SeaText AI Makes Sense

• You need 5+ languages quickly and don’t have a localization team.
• You run paid traffic (Google/Meta) and want keyword-matched landing pages + bot refunds.
• You want conversion optimization (A/B testing, personalization) without adding three more vendors.
• Your Angular app is a marketing site, landing pages, or ecommerce store where copy drives revenue.
• You prefer operational simplicity: one dashboard, no translation file merges in CI/CD.

When a Custom Layer Might Be Better

• You have strict regulatory or brand-voice requirements that demand human-approved, locked-down translations (e.g., medical, legal, financial disclosures).
• Your app is a complex B2B SaaS dashboard with dynamic, user-generated content that SeaText’s DOM-based approach can’t cleanly handle.
• You already have a mature i18n pipeline, translation memory, and in-house linguists.
• You need offline-first or fully server-rendered translations without any client-side JS execution.

Decision Framework: Choose Your Path

1. Count your languages. 1–2 languages with stable copy? Custom may be fine. 5+ or expanding? SeaText scales instantly.
2. Assess paid traffic. If you spend on Google/Meta ads, SeaText’s keyword-matched rewrites and bot refunds directly protect ROI.
3. Evaluate optimization appetite. Want automatic A/B testing on headlines, CTAs, product copy? SeaText includes it; custom requires separate stack.
4. Check content type. Marketing pages, blogs, product pages = SeaText sweet spot. Highly dynamic app UI with user data = custom advantage.
5. Review team capacity. No dedicated localization engineer? SeaText removes that headcount need.

Key Facts

Limitations and Exceptions

SeaText operates at the DOM level after render. Content injected via WebGL, Canvas, or third-party iframes won’t be translated. Highly dynamic single-page dashboards where text changes via user interaction (not route changes) may need manual scope configuration in the dashboard to avoid over-translation. The snippet requires localStorage access — if your CSP blocks it or users disable it, translation persistence falls back to session-only. For regulated content requiring human sign-off, SeaText’s glossary and exclusion controls help but don’t replace a formal review workflow.

FAQ

Does SeaText replace ngx-translate entirely?

Yes, for marketing pages, landing pages, and public-facing content. For internal app UI (settings, dashboards, error messages) you may keep ngx-translate and run both — SeaText only translates elements you allow via dashboard scope.

Can I use SeaText alongside Google Translate widget?

Technically yes, but they’ll fight over the same DOM nodes. SeaText’s documentation advises choosing one approach to avoid conflicts and inconsistent UX.

What happens to my existing translation files?

You can keep them for app-internal strings. SeaText doesn’t read or write your ngx-translate JSON files; it works purely on the rendered DOM.

How does SeaText handle RTL languages like Arabic or Hebrew?

The AI generates RTL-appropriate copy and the snippet applies dir="rtl" to translated elements. Layout shifts are handled via CSS; test your components with RTL enabled.

Is there a free tier or trial?

SeaText offers a free 1-month pilot trial; billing starts only after proven conversion lift is detected.

Can I exclude specific components or pages?

Yes. The dashboard lets you define AI scope by URL pattern, CSS selector, or data attribute so you control exactly what gets rewritten.

What if I need a translation corrected?

The Variants Editor in the dashboard lets you manually override any AI-generated variant, lock it, or add glossary terms for brand names and product terminology.

If the browser console shows SeaText AI errors on some pages but not others, the cause is almost always a page-level integration issue rather than a platform-wide failure. The SeaText snippet loads asynchronously and relies on local storage and cross-origin permissions; any page that skips the snippet, loads it after a route change without re-initialization, or runs under a restrictive Content Security Policy will surface errors while other pages work fine.

How the SeaText AI snippet loads on a page

The SeaText integration is a single JavaScript snippet that you place in the body of your entry HTML (for example index.html) or in the framework's bootstrap file. The script tag carries the async attribute so it does not block page rendering. On first load the script writes an identifier into the browser's local storage and begins listening for DOM changes so it can rewrite headlines, offers, and calls to action. If the snippet is absent or executes before the DOM is ready, the AI agents cannot attach to the page and the console reports initialization errors.

Why errors appear only on certain pages

• Missing snippet on dynamically loaded routes. In a single-page application (React, Vue, Angular) the initial index.html loads the snippet, but subsequent client-side routes may not re-run the initialization code. SeaText then has no reference to the new view and logs errors when it tries to mutate elements that do not exist.
• Cross-origin restrictions. If your SPA serves parts of the app from different subdomains or a CDN with a different origin, the script may be blocked by the browser's same-origin policy. Pages served from the primary origin work; cross-origin pages throw security errors.
• Local storage unavailable. The snippet stores a session ID in local storage. Pages loaded in private/incognito mode, inside an iframe with sandbox attributes, or under a strict Content Security Policy that denies localStorage access will fail silently on those pages only.
• Conflicting page scripts. A page that loads its own heavy JavaScript (for example a complex charting library or a third-party chat widget) can mutate the DOM after SeaText has already scanned it, causing version mismatches that surface as console warnings.

Diagnostic sequence for page-specific errors

1. Open the failing page and check the Network tab: confirm the SeaText script (seatext.js or your custom endpoint) returns HTTP 200 and the response body is valid JavaScript.
2. Switch to the Console tab and filter for "SeaText" or "SEATEXT". Note the exact error message — Cannot read property 'init' of undefined usually means the snippet never ran; SecurityError: localStorage points to storage blocking.
3. Verify the snippet is present in the page source (View → Page Source). In SPAs, search for the snippet in the built index.html and in any lazy-loaded route chunks.
4. Test the same page in a normal (non-incognito) window. If errors disappear, the cause is local-storage or cookie policy.
5. Temporarily disable other third-party scripts on the failing page (via browser extension or comment-out in code). If SeaText errors stop, you have a script-order or DOM-conflict issue.

Common integration mistakes by page type

React applications

After adding the snippet to public/index.html, run npm start and inspect the Console and Network tabs. If you use code-splitting (React.lazy), ensure the SeaText initialization runs again inside a useEffect hook on each route component, or use a higher-order component that re-initializes on routeChange events.

Vue.js applications

Place the snippet in index.html and add a global navigation guard (router.afterEach) that calls window.seatext && window.seatext.refresh() so the AI re-scans the new view.

Angular applications

Include the snippet in index.html. In AppComponent subscribe to Router.events and filter for NavigationEnd to trigger a SeaText refresh after every navigation.

Cross-origin and local-storage edge cases

If your marketing landing pages live on app.example.com but the checkout flow runs on checkout.example.com, the SeaText snippet loaded on the first domain cannot access local storage on the second. Solutions include: (1) loading the snippet on every subdomain, (2) configuring a shared cookie domain so the session ID persists, or (3) using a reverse proxy so all traffic appears to come from the same origin. Pages served inside an iframe (for example an embedded demo) need the allow-same-origin allow-scripts allow-forms sandbox flags; otherwise the browser blocks both script execution and storage access.

Key facts from SeaText documentation

Limitations and when this guidance does not apply

• Server-side rendered (SSR) pages that never hydrate the SeaText snippet will not show console errors — they simply will not receive AI rewrites. The diagnostic steps above assume client-side execution.
• If your site uses a strict Content Security Policy that blocks script-src 'unsafe-inline' or connect-src to SeaText endpoints, the fix is a CSP change, not a snippet change.
• Errors that appear on every page (global 404 on the script URL, syntax error in the snippet) are platform-wide issues; contact SeaText support with the exact error text.

Frequently asked questions

Why does the error say "seatext is not defined" only on my blog routes?

Your blog routes are likely lazy-loaded chunks that do not include the SeaText initialization code. Add a route-change listener that calls window.seatext.init() or window.seatext.refresh() after each navigation.

Can I use SeaText inside an iframe embed?

Yes, but the iframe must have allow-scripts allow-same-origin sandbox attributes and the parent page must not block localStorage via CSP. Otherwise the snippet loads but cannot persist its session ID.

Do I need a separate snippet for each subdomain?

You can reuse the same snippet URL, but it must be included in the HTML of every subdomain. The script will create a separate local-storage entry per origin unless you configure a shared cookie domain.

What if a third-party chat widget breaks SeaText on the contact page?

Load SeaText before the chat widget (place its snippet higher in body) or defer the chat widget until after window.seatext.ready fires. SeaText exposes a ready promise you can await.

How do I know the snippet version I'm running?

Open the Network tab, click the SeaText script request, and check the response headers for a version hash or query parameter. The SeaText dashboard also shows the active snippet version per project.

Will SeaText work in Safari's Intelligent Tracking Prevention mode?

ITP limits third-party cookies and local storage lifetime. SeaText uses first-party local storage, so it generally works, but if the visitor has "Prevent cross-site tracking" enabled and your snippet loads from a different domain, storage may be cleared after seven days. Host the snippet on your own domain to avoid this.

What is the fastest way to verify a fix?

After deploying the corrected snippet, open the failing page in a clean browser profile, hard-refresh (Cmd+Shift+R / Ctrl+Shift+R), and confirm the Console shows zero SeaText errors and the Network tab shows a 200 response for the script.

Yes, browser extensions can interfere with SeaText AI and produce console errors that appear to come from SeaText. Ad blockers (uBlock Origin, AdBlock Plus), privacy extensions (Privacy Badger, Ghostery), and script blockers (NoScript, uMatrix) frequently block or modify the SeaText snippet because it loads asynchronously, uses local storage, and communicates across origins. The errors show up in the browser console as failed script loads, blocked network requests, or local storage access denials, but they originate from the extension's filtering rules, not from a SeaText bug.

Why Extensions Block SeaText AI

SeaText AI loads via a small JavaScript snippet that runs asynchronously, stores a visitor ID in local storage, and may communicate with SeaText servers across origins. Extensions that block tracking, ads, or third-party scripts often treat this pattern as suspicious. The snippet's async attribute, local storage usage, and cross-origin requests each trigger different extension filters.

Ad blockers maintain filter lists that target known analytics and marketing scripts. Privacy extensions use heuristic rules to block scripts that fingerprint users or store identifiers. Script blockers default-deny all third-party JavaScript until explicitly allowed. Any of these can stop the SeaText snippet from loading or running, and the browser console will log the resulting failures as errors.

Common Extensions Known to Conflict

• uBlock Origin — blocks third-party scripts by default; SeaText appears in many filter lists as a marketing/tracking script.
• AdBlock / AdBlock Plus — similar filter lists; may allow the script but block network requests to SeaText endpoints.
• Privacy Badger — learns to block scripts that appear to track across sites; SeaText's cross-origin calls often trigger it.
• Ghostery — categorizes SeaText as advertising/tracking and blocks it by default.
• NoScript / uMatrix — block all third-party JavaScript unless you whitelist the SeaText domain.
• DuckDuckGo Privacy Essentials — blocks hidden trackers; may catch SeaText's async loader.
• Brave Shields — built-in blocking that treats SeaText like other third-party marketing scripts.

This list is not exhaustive. Any extension that filters scripts, blocks third-party cookies, or restricts local storage can cause similar symptoms.

How to Test Whether an Extension Is the Cause

1. Open the page in an incognito/private window with all extensions disabled. In Chrome: Ctrl+Shift+N (Windows) or Cmd+Shift+N (Mac). In Firefox: Ctrl+Shift+P. In Safari: Cmd+Shift+N.
2. Open Developer Tools (F12) and check the Console and Network tabs. The SeaText script should load without errors, and you should see network requests to SeaText domains succeed.
3. If the errors disappear in incognito, re-enable extensions one by one in a normal window, refreshing each time, until the errors return. That extension is the culprit.
4. Once identified, add an exception for the SeaText domain in that extension's settings, or configure the extension to allow scripts on your site.

SeaText's own SPA integration guide recommends exactly this workflow: build and serve your application, then open Developer Tools (F12) and check the Console and Network tabs to verify the script loads without errors.

What the Console Errors Typically Look Like

• Failed to load resource: net::ERR_BLOCKED_BY_CLIENT — the extension blocked the script or a subsequent API call.
• Refused to execute script from '...' because its MIME type... — the extension modified the response or redirected it.
• SecurityError: Failed to read the 'localStorage' property from 'Window': Access is denied for this document. — the extension blocks local storage access for third-party contexts.
• Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource... — the extension blocks cross-origin requests from the snippet.

These errors look like SeaText failures, but they are the browser reporting that an extension prevented an action SeaText attempted.

Technical Details from SeaText's Integration Model

SeaText's snippet uses async loading to avoid blocking page render. It writes a visitor identifier to localStorage so it can recognize returning visitors and maintain variant assignments across page views. In single-page applications (React, Vue, Angular), the snippet is typically placed in index.html or the framework's entry point, and it must survive client-side navigation without reloading.

These three characteristics — async load, local storage, cross-origin communication — are exactly what privacy and ad-blocking extensions target. The SeaText documentation for SPAs explicitly calls out "Asynchronous Loading," "Local Storage Usage," and "Cross-Origin Considerations" as areas to verify during integration.

Key Facts

Limitations and When This Advice Does Not Apply

• If errors persist in incognito with all extensions disabled, the issue is likely a genuine SeaText configuration problem, a network policy (corporate firewall, CSP headers), or a code conflict on your site.
• Enterprise environments may have network-level filtering (proxy, DNS filtering) that blocks SeaText domains regardless of browser extensions. Incognito testing won't bypass network-level blocks.
• Content Security Policy (CSP) headers on your own site can block the SeaText snippet if the script's origin isn't in script-src or if connect-src doesn't allow SeaText API endpoints.
• Some extensions inject their own scripts into pages, which can cause unrelated console errors that look like they come from SeaText. Check the error's source URL before concluding.

Terminology

• Async script — A script tag with the async attribute; the browser downloads it without blocking HTML parsing and executes it as soon as it's ready.
• Local storage — A browser API that lets sites store key-value pairs persistently (up to ~5 MB) per origin. Unlike cookies, it's not sent automatically with requests.
• Cross-origin request — A network request from one domain (your site) to a different domain (SeaText's API). Browsers restrict these via the Same-Origin Policy unless the server responds with CORS headers.
• Filter list — A curated set of rules (domains, URL patterns, heuristics) that ad blockers and privacy extensions use to decide what to block.
• Incognito/private mode — A browser session that disables most extensions by default and doesn't persist cookies or history after the window closes.

Practical Scenarios

Scenario 1: Marketing team sees console errors on staging

A marketing manager reviews a staging site and sees red errors in the console. They assume SeaText is broken. The developer opens the same page in incognito — no errors. The culprit: the manager's uBlock Origin with default filters. Adding an exception for the staging domain resolves it.

Scenario 2: SPA navigation breaks SeaText

In a React app, SeaText works on the first load but stops after client-side navigation. The console shows local storage access denied. The cause: Privacy Badger learned to block SeaText's storage access after detecting cross-origin requests. Whitelisting the SeaText domain in Privacy Badger fixes it.

Scenario 3: Corporate laptop shows errors, personal laptop doesn't

Same site, same browser version. The corporate laptop has a managed extension policy that forces a script blocker. Incognito on the corporate laptop still shows errors because the policy applies to incognito too. This is a network/IT policy issue, not a browser extension issue per se.

FAQ

Do I need to tell all my visitors to disable extensions?

No. Most visitors don't use aggressive script blockers. The extensions that block SeaText are typically installed by power users, developers, and privacy-conscious individuals — a small fraction of traffic. SeaText still works for the vast majority. You only need to troubleshoot when you or your team see errors during development or QA.

Will SeaText work if the snippet loads but API calls are blocked?

Partially. The snippet may initialize and attempt variant assignment, but without successful API communication, it can't fetch variants, report events, or sync state. You'll see partial functionality at best. The console will show failed fetch or XMLHttpRequest calls to SeaText endpoints.

Can I change the SeaText snippet to avoid extension blocks?

Not directly. The snippet is served from SeaText's CDN and its behavior (async, local storage, cross-origin) is fundamental to how the service works. The reliable fix is configuring the extension to allow SeaText, not modifying the snippet.

Does SeaText work in browsers with strict tracking prevention (Safari ITP, Firefox ETP)?

Yes, but with caveats. Intelligent Tracking Prevention (ITP) and Enhanced Tracking Protection (ETP) limit third-party storage and cookies. SeaText uses first-party local storage on your domain, which is generally allowed. However, if SeaText's API is called from a third-party context (e.g., an iframe on another domain), ITP/ETP may block storage access. For standard same-site installations, it works.

How do I whitelist SeaText in uBlock Origin?

Click the uBlock Origin icon → click the power button for the current site (large blue button) to disable on this site, or open the logger, find the blocked SeaText request, and create a dynamic rule allowing it. For team-wide rules, export/import filter lists.

What if my CSP blocks the SeaText snippet?

Add SeaText's script origin to your script-src directive and its API endpoints to connect-src. Example: script-src 'self' https://cdn.seatext.com; connect-src 'self' https://api.seatext.com; Adjust domains to match SeaText's current CDN and API hosts.

Can multiple extensions conflict with each other and cause false SeaText errors?

Yes. Research on AI agent extensions shows that multiple extensions fighting for the same context window can produce symptoms that look like bugs in any one of them. If you run uBlock Origin + Privacy Badger + Ghostery together, their combined filtering can block SeaText in ways that no single extension would alone. Test with one extension enabled at a time to isolate.

If you open the browser console and see red lines tagged SEATEXT or SeaText AI while your pages still render in the target language, you are looking at recoverable warnings, not fatal errors. The translation engine loads asynchronously, attempts optional enhancements (dictionary fallbacks, A/B variant fetches, bot-detection pings), and logs every retry or fallback. As long as the main script boots and the translation worker registers, the user-facing translation keeps running.

How SeaText AI Loads in the Browser

The SeaText snippet is injected with the async attribute, so the browser fetches and executes it without blocking page render. During that bootstrap the script:

• Registers a Service Worker (or falls back to a polling worker) that intercepts text nodes.
• Reads a persistent ID from localStorage to tie the session to a variant bucket.
• Requests the translation manifest for the current language.
• Optionally requests variant payloads, bot-detection endpoints, and A/B test configurations.

Each of those network calls can succeed, retry, or fall back independently. The console surfaces every retry and fallback as a warning so developers can audit performance, but none of them halts the primary translation loop.

Common Warning Patterns You Will See

Why the Translation Engine Keeps Running

SeaText separates the critical path (text interception, dictionary lookup, DOM mutation) from enhancement paths (variant testing, bot evidence, analytics). The critical path is initialized synchronously once the main script executes. Enhancement paths are wrapped in try/catch and scheduled with requestIdleCallback or setTimeout. When an enhancement throws or a network request rejects, the error is logged and the promise chain resolves to a safe default. The user never sees a broken page.

Distinguishing Warnings from Fatal Errors

Look for these signals to decide whether action is needed:

• Warning (ignore unless noisy): Prefixed with [SEATEXT] WARN, contains retry, fallback, or deprecated.
• Error (investigate): Prefixed with [SEATEXT] ERROR, mentions init failed, worker registration failed, or manifest parse error.
• Fatal (translations stop): The seatext global is undefined, or the console shows Uncaught TypeError: Cannot read property 'translate' of undefined.

If you only see warnings, the system is working as designed. If you see an ERROR line and translations disappear, capture the full stack trace and open a support ticket.

Typical Causes of Noisy Warnings

1. Aggressive Browser Privacy Settings

Browsers with Enhanced Tracking Protection or Intelligent Tracking Prevention block third-party storage and sometimes third-party fetches. SeaText logs each blocked attempt. The translation still works because the engine caches the last good manifest in IndexedDB (which is less restricted) and falls back to in-memory dictionaries.

2. SPA Navigation Without Full Reload

In React, Vue, or Angular apps, the SeaText snippet runs once on the initial load. Subsequent route changes trigger popstate listeners that re-scan the DOM. If a route loads lazy components that contain new text, the scanner logs WARN: rescanning dynamic nodes. This is expected and harmless.

3. Missing or Stale Manifest

When you add a new language in the dashboard, the CDN propagates the manifest within a few minutes. During that window the console shows WARN: manifest 404, using cached version. Translations continue with the previous manifest until the new one arrives.

4. Network Flakiness on Mobile

On slow or intermittent connections, variant and bot-detection requests time out. The script retries exponentially (1 s, 2 s, 4 s) and logs each retry. The core translation payload is tiny (< 30 KB gzipped) and usually arrives on the first try.

When to Take Action

Debugging Checklist for Developers

1. Open DevTools → Console → filter SEATEXT.
2. Count ERROR vs WARN lines in the last 30 seconds.
3. Switch to Network tab, filter seatext, confirm manifest.json returns 200.
4. Check Application → Service Workers — status should be activated and running.
5. If localStorage warnings persist, test in a normal (non-incognito) window.
6. Still stuck? Copy the last 50 console lines and the Network HAR file; send to SeaText support.

Key Facts

Limitations & When This Advice Does Not Apply

• If you self-host the SeaText worker or manifest, the fallback chain changes — check your infrastructure logs first.
• Enterprise customers with custom CSP rules may see different error codes; refer to your dedicated integration guide.
• This article covers the standard JavaScript snippet. Native mobile SDKs (iOS/Android) have separate logging channels.

FAQ

Why do I see the same warning on every page load?

Because the condition (e.g., missing variant, blocked localStorage) persists across sessions. Fix the root cause or accept the noise — it does not affect users.

Can I suppress SeaText console logs in production?

Yes. Add window.SEATEXT_CONFIG = { silent: true } before the snippet loads. This mutes WARN lines; ERROR lines still surface.

Do these warnings affect Core Web Vitals?

No. The snippet is async and the warnings are logged after load event. They add negligible main-thread time.

What does “variant fetch retry” mean for my A/B tests?

The test bucket assignment is delayed until the variant payload arrives. Users see the base translation during the retry window; once the payload lands, the variant applies on the next navigation.

Is there a health-check endpoint I can monitor?

https://cdn.seatext.com/healthz returns 200 OK when the translation CDN is healthy. Use it in uptime monitors.

How do I know if translations are actually working for visitors?

Open the page with ?seatext_debug=1 — a small overlay shows active language, manifest version, and variant bucket.

Can SeaText errors break other scripts on my page?

No. The snippet runs in an IIFE and catches all internal promise rejections. Only uncaught errors in your own code can break other scripts.

Common SeaText AI Integration Errors and How to Fix Them

Integrating SeaText AI into your website should be straightforward, but sometimes issues arise. Most common problems stem from simple configuration mistakes or external factors. By understanding these potential pitfalls and knowing how to check them, you can often resolve integration errors yourself, saving time and ensuring your AI features work as expected.

1. Verify Your API Key and Endpoint URLs

The most frequent cause of integration failure is an incorrect or invalid API key. Your API key is like a password that authenticates your requests to SeaText's servers. If it's mistyped, expired, or not correctly associated with your account, the integration will not function.

Checking Your API Key

1. Locate your API key: Find your API key within your SeaText account dashboard. It's usually in a 'Settings' or 'API' section.
2. Compare carefully: Double-check that the API key you've entered into your website's integration code exactly matches the one in your dashboard. Pay attention to capitalization and special characters.
3. Regenerate if necessary: If you suspect your API key might be compromised or is not working, you can often regenerate a new one from your SeaText dashboard. Remember to update this new key in your integration code.

Validating Endpoint URLs

Endpoint URLs are the specific web addresses your integration uses to communicate with SeaText's services. An incorrect endpoint URL means your requests are sent to the wrong place, leading to errors.

1. Find the correct URL: Refer to the SeaText integration documentation for the precise endpoint URLs required for your setup.
2. Check for typos: Ensure there are no misspellings, extra spaces, or incorrect protocols (like HTTP instead of HTTPS) in the endpoint URL within your code.
3. Confirm environment: Make sure you are using the correct endpoint for your environment (e.g., a staging URL for testing versus a production URL).

2. Understand and Address Rate Limits

APIs, including SeaText's, often have rate limits to prevent abuse and ensure fair usage. These limits dictate how many requests you can make to the API within a certain time frame. Exceeding these limits will result in errors, typically a '429 Too Many Requests' response.

Identifying Rate Limit Issues

• Check response headers: When your integration makes a request, the API response often includes headers that indicate your current usage and remaining limits. Look for headers like X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset.
• Monitor request frequency: If you are making a large number of requests in a short period, especially during initial setup or high traffic, you might be hitting the rate limit.

Strategies for Managing Rate Limits

• Implement delays: Introduce small delays between consecutive API calls if you are making many requests rapidly.
• Batch requests: If possible, group multiple data points into a single API request rather than sending them one by one.
• Optimize your code: Review your integration logic to ensure you are only making necessary API calls.
• Upgrade your plan: If your usage consistently exceeds the limits of your current plan, consider upgrading to a plan with higher rate limits.

3. Consult the SeaText Error Code Reference

When an integration fails, SeaText provides specific error codes and messages that offer clues about the problem. These codes are designed to help developers quickly diagnose and fix issues.

Using the Error Reference

1. Note the exact error: When an error occurs, record the precise error code and message displayed in your browser's developer console or server logs.
2. Find the documentation: Navigate to the SeaText documentation and locate the section dedicated to error codes.
3. Understand the meaning: Read the explanation for the specific error code you received. This will tell you what went wrong and often suggest a solution. For example, an error related to invalid parameters will guide you to check the data you are sending.
4. Apply the fix: Based on the documentation's guidance, adjust your integration code or configuration to resolve the issue.

4. Verify JavaScript Snippet Placement for SPAs

For Single Page Applications (SPAs) like React, Vue, or Angular, the correct placement of the SeaText AI JavaScript snippet is crucial. Incorrect placement can prevent the script from loading or executing properly.

Correct Placement in SPAs

• Identify the entry point: The snippet should typically be placed within the <body> tag of your main index.html file or the equivalent initialization section where your framework mounts the application.
• Asynchronous loading: The snippet includes the async attribute, which ensures it loads without blocking page rendering. This is standard practice for SPAs.
• Framework-specific considerations: While the general principle is the same, some frameworks might have specific ways to manage external scripts. Consult your framework's documentation if you encounter issues.

Testing Snippet Integration

1. Build and serve: After adding the snippet, build and serve your SPA using your framework's standard commands (e.g., npm start, ng serve).
2. Inspect the page: Open your browser's Developer Tools (usually by pressing F12).
3. Check Console and Network tabs: Look for any errors related to the SeaText script in the Console tab. In the Network tab, verify that the SeaText script is loading successfully and without any 404 or other error status codes.

5. Browser and Local Storage Considerations

Certain browser features and configurations can impact how the SeaText AI script functions, especially in SPAs.

Local Storage Permissions

The SeaText script stores an ID in the browser's local storage. If your application or browser settings restrict access to local storage, the script may fail to initialize or function correctly.

• Check browser settings: Ensure that your browser allows websites to use local storage. This is usually enabled by default.
• Application permissions: If your SPA has specific logic that manages local storage, verify that it is not interfering with the SeaText script's ability to write or read its ID.

Cross-Origin Issues

If your SPA interacts with multiple domains or subdomains, you might encounter cross-origin resource sharing (CORS) issues. These can prevent scripts loaded from one origin from accessing resources on another.

• Verify domain configuration: Ensure that the domains where your SeaText script is loaded and the domains it needs to communicate with are correctly configured in your SeaText account and your server settings.
• Consult documentation: SeaText's documentation may provide specific guidance on handling cross-origin scenarios for integrations.

6. Common Mistakes to Avoid

Even with clear instructions, certain common mistakes can lead to integration problems. Being aware of these can help you prevent them.

Mistake 1: Forgetting to Clear Cache

After making changes to your integration code or updating the SeaText snippet, your browser or server might serve cached versions of your site. This means your changes won't take effect.

• Clear browser cache: Perform a hard refresh (e.g., Ctrl+Shift+R or Cmd+Shift+R) or clear your browser's cache entirely.
• Clear server cache: If you use a caching layer on your server or a CDN, ensure you clear those caches as well.

Mistake 2: Incorrectly Implementing Dynamic Content

If your website loads content dynamically (e.g., through AJAX calls), the SeaText snippet might execute before the dynamic content is available, or it might not re-evaluate the content after it loads.

• Use framework events: For SPAs, ensure you trigger SeaText's initialization or update functions after dynamic content has loaded and rendered. Consult SeaText's SPA integration guide for specific methods.
• Re-initialize if needed: In some cases, you might need to re-initialize the SeaText script or call specific update methods when new content is added to the page.

Mistake 3: Ignoring Console Errors

Browser developer consoles are invaluable for debugging. Ignoring errors reported here is a common oversight that delays problem resolution.

• Always check the console: After implementing or updating your integration, open your browser's developer console (F12) and look for any red error messages.
• Understand the messages: Even if you don't understand them immediately, copy the error message and search SeaText's documentation or online forums for solutions.

Key Facts About SeaText AI Integration

Limitations and When to Seek Support

While this guide covers common self-service troubleshooting steps, there are limitations. If you've exhausted these options, it's time to contact SeaText support.

• Complex Network Issues: Problems related to your server's network configuration, firewalls, or proxy settings might be beyond the scope of basic troubleshooting.
• Third-Party Conflicts: Conflicts with other JavaScript libraries or plugins on your website can be difficult to diagnose without deeper inspection.
• Specific SPA Framework Bugs: In rare cases, an issue might be specific to how SeaText interacts with a particular version or configuration of an SPA framework.
• Persistent Errors: If you've followed all the steps and are still encountering the same error, it's likely a more complex problem that requires expert assistance.

Frequently Asked Questions

What should I do if I get a '401 Unauthorized' error?

A '401 Unauthorized' error typically means your API key is invalid, expired, or not correctly formatted. Double-check your API key against the one in your SeaText dashboard. If it's correct, try regenerating a new API key and updating it in your integration.

How can I check if the SeaText snippet is loading correctly on my SPA?

Open your browser's developer tools (F12), go to the 'Network' tab, and refresh your page. Look for the SeaText script file in the list of loaded resources. It should have a '200 OK' status. Also, check the 'Console' tab for any JavaScript errors related to the SeaText script.

My integration worked before, but now it's not. What changed?

Changes to your website's code, updates to your SPA framework, or modifications in your SeaText account settings could cause this. Review recent changes you've made. Also, check if SeaText has released any updates that might affect older integrations. Ensure your API key is still valid.

Can I use SeaText AI for translation if I already have some pages translated?

Yes, SeaText AI can work alongside existing translations. It allows you to translate pages into up to 125 languages. You can manage and optimize these localized versions. Consult SeaText's documentation on how to integrate existing translations or manage new ones effectively.

What is 'local storage' and why does SeaText use it?

Local storage is a web browser feature that allows websites to store data directly in your browser, persistently across sessions. SeaText uses it to store an identifier for your integration, which helps the script function correctly and maintain its state. Ensure your browser and any privacy extensions allow local storage for SeaText.