How to Troubleshoot Seatext AI Not Working in Your SPA (React, Vue, Angular)
If Seatext AI isn't loading in your single-page app, first verify the snippet is positioned correctly in your entry point, then check the browser console and Network tab for script errors, confirm local storage...
If Seatext AI isn't functioning in your single-page application (SPA), the practical fix is to check the basics: the snippet must be placed in the entry point where your app initializes (typically the <body> of index.html), the script must load without errors, local storage must be available, and cross-origin requests must be allowed. Working through these steps in order usually reveals the problem.
Below is a direct six-step troubleshooting path you can follow now. Then we'll cover the background, a key facts table, common mistakes, limitations, and an FAQ so you understand the integration's boundaries.
Follow the official integration guide first
Even if your SPA is built with React, Vue, or Angular, Seatext ships a single JavaScript snippet. The official instructions ask you to:
- Identify the entry point:
index.htmlor your main JavaScript/TypeScript file where the framework mounts. - Insert the SEATEXT AI snippet within the
<body>tag, or in the equivalent initialization section. - Build and serve your app, then verify it in the browser's Developer Tools (F12).
Skip this first check and you'll likely chase edge cases that aren't the real cause.
Six-step troubleshooting process (process)
1. Confirm the snippet is actually in the page
Open your live page and view source (Ctrl/Cmd+U) or use DevTools Elements tab. Search for SEATEXT. If it's missing, check your build output and see if a bundler stripped it or if you placed it in a component that never mounts.
2. Check the Console tab for errors
Press F12, open the Console, and reload the page. Look for errors like Seatext is not defined, Failed to load resource, or localStorage is not available. These messages point directly to the failing part.
3. Examine the Network tab
In Network, reload and filter by seatext. Confirm the script request gets a 200 status. A 404 or DNS block means the script didn't load at all. A red status may also appear if your Content Security Policy (CSP) blocks it.
4. Verify local storage is accessible
The snippet stores an ID in local storage. In the same tab run localStorage.setItem('test','1') in the console. If it throws a QuotaExceededError or SecurityError, Seatext cannot store its ID and will not function. Check that allow-same-origin is present if rendering in an iframe.
5. Isolate cross-origin issues
SPAs often talk to multiple domains (API, CDN, subdomains). Seatext's script must be allowed to make requests to its service. Your response and cross-origin headers may block it. Try loading the page from the same origin without an iframe wrapper; if it works there, the issue is an iframe permission or CORS misconfig.
6. Rebuild and serve cleanly
After changes, clear browser cache, build your app again (npm run build for React, npm run serve for Vue, ng serve for Angular), reload in incognito mode, and retest. A stale service worker can also keep an old script version.
A note about “SPA” meaning
This guide is for single-page applications, not hot tubs. Earlier search results about spa jets are a different topic. Seatext integrates with web apps, not Jacuzzi pumps.
Key facts about Seatext SPA integration
| Aspect | What Seatext requires | What to check |
|---|---|---|
| Script loading | The snippet has async, so it loads asynchronously and doesn't block rendering. | Confirm no heavy prerender or lazy filter removes it before loading. |
| Local storage | It stores an ID to remember visitors. | Call localStorage.length; if 0, check privacy settings or iframe sandbox. |
| Cross-origin access | If your SPA uses multiple domains, the script must be allowed to call Seatext. | Open Network tab, filter to seatext.com and verify CORS headers. |
| Entry point | Must be in the body of the root HTML or main startup file. | Dev tools > Components should ultimately hit a tag containing id with SEATEXT. |
Common SPA pitfalls and how to avoid them
- Placing the snippet inside a lazy-loaded component → the script may not run until that route mounts. Keep it in root.
- Event listeners firing after a route change → if Seatext is tied to certain DOM events, your router may replace those elements; test on a full refresh.
- Ad blockers or browser privacy extensions → some blockers interfere with third-party scripts. Test with them disabled.
- Double initialization in development → React StrictMode can run effects twice. However, the snippet is not a React component, so this rarely applies, but if you called it twice via componentDidMount, you may get duplicates. Check the Network tab.
Limitations and when this advice does not apply
This troubleshooting assumes Seatext is properly installed and you have control over the HTML file. If Seatext is and you don't see issues at all, but it's still not functioning, the issue could be with Seatext's service itself. A quick check is to test a non-SPA page on your site or open a fresh page with the exact snippet. If it works elsewhere, the SPA router is interfering.
Also, the advice assumes you can edit source and re-deploy. If you're using a third-party build service that doesn't allow direct HTML injection, you'll need to use the platform-specific installation for those builders, not the custom SPA process.
Frequently asked questions about Seatext on SPAs
Why does Seatext stop working after I create and serve a production build?
Most often the snippet is only in a development template that isn't copied to the production file. Check the final built index.html for the script tag.
Can I use Seatext on an SPA that uses a hash router?
Yes. The snippet only needs to load once on the page. The router changes the URL hash (e.g., /#/about, but the page body's DOM still stays the same; it won't reload the script automatically. Ensure the snippet is on the main page, not inside a component that unmount/mounts across routes.
Why does Seatext work on my homepage but not a route like /services?
If you mount the script in a component that only renders on the home page, it won't exist on other routes. Keep it in the root layout or directly in the body of the base HTML.
My browser localStorage is block – can I still use Seatext?
No, Seatext uses local storage to store a visitor's ID, it won't function otherwise. You'd need to change privacy settings, or whitelist the domain.
Does Seatext cause a major performance lag in SPAs?
The official snippet loads async, which Seatext says helps with page load. It won't block rendering, but your own bundle and the user's connection also matter. Measure it in Dev Tools Performance if you're concerned.
How can I test if the Seatext script is blocked by another script tag?
Temporarily remove other third-party scripts one by one and watch the Network tab. A common suspect is a tag that modifies document.write or CORS restrictions. If it works after removal, prioritize revisiting that script.
When all else fails
If the script is present, no errors, and local storage works, but Seatext still doesn't function, reach out to Seatext's integration team with the Developer Tools console output and a Network trace. Those logs are usually enough to pinpoint a server-side block or configuration issue.
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