How to Test SeaText AI Integration in a React App

To test that SeaText AI is working in your React app, open the browser’s developer tools, look for the SeaText initialization log in the Console, and verify that window.seatext.ready() returns true.

If the snippet has loaded successfully, you will also see a network request for the SeaText JavaScript file and an entry in localStorage under the key used by SeaText.

Testing the integration means confirming that the asynchronous SeaText script has been fetched, executed, and is ready to modify the page based on visitor context.

Key facts about the SeaText AI snippet

Prerequisites for testing SeaText AI in React

Before you run any checks, make sure the SeaText snippet is actually present in the rendered HTML. Open the Elements tab, search for 'SEATEXTCODEINTEGRATION' or the script src. Confirm that the script tag has the async attribute and is placed inside the of public/index.html (or the equivalent root template). Also verify that your React app is running in development mode (npm start) so that source maps are available and the console output is readable.

Ensure that your browser allows localStorage and that no content‑security‑policy (CSP) blocks the script src. If you use an ad‑blocker, disable it for the test domain or add an exception, because some blockers mistakenly flag the SeaText script as a tracking script.

Step‑by‑step verification process

1. Reload the page after confirming the snippet is in the HTML. 2. Open DevTools (F12) and go to the Console tab. 3. Look for a log line that contains 'SeaText initialized' or similar; the exact text depends on the version but usually includes the word SeaText. 4. In the Console, type window.seatext.ready() and press Enter. A return value of true indicates the API is ready. 5. Switch to the Network tab, reload if needed, and filter by 'seatext' or the script’s filename. Verify that the request returns status 200 and that the response type is script. 6. Finally, go to the Application tab, select Local Storage, and check for a key that starts with 'seatext_' (or the exact key documented). Its presence confirms the script executed and stored its identifier.

What to look for in the browser console

The console may show multiple messages. The first is often a simple log like 'SeaText snippet loaded'. If the script fails to load, you will see a 404 or CSP error instead. After initialization, SeaText may log the detected visitor source (e.g., 'Detected source: google') if the Visitor Source Agent is active. If you have enabled the Bot Refund Agent, you might see a message about 'Bot detection initialized'. Any of these logs confirm that the script ran beyond mere fetch.

If you see no SeaText‑related output, double‑check that the script tag is not being removed by a framework‑specific head management library (e.g., React Helmet) that moves scripts to the head inadvertently. The snippet must stay in the body to preserve the async attribute behavior described in the source.

Checking network requests

In the Network tab, look for a request to the SeaText CDN URL (commonly something like https://cdn.seatext.com/seatext.js). The request should have the async attribute, which means it will appear as a separate entry that does not block the initial HTML parsing. Verify that the response headers include Content‑Type: application/javascript and that the response body is not empty. If the request is cancelled or shows a (blocked) status, investigate CSP rules or network filters.

You can also enable the 'Preserve log' option to keep the request visible after a page reload triggered by client‑side routing. This helps when testing navigation between React routes, because SeaText should re‑evaluate the visitor source on each route change.

Using the window.seatext API

Beyond window.seatext.ready(), the API exposes a few helper methods that can be used in tests. For example, window.seatext.getVersion() returns the current snippet version string, and window.seatext.isInitialized() returns a boolean that mirrors ready(). These methods are safe to call after the snippet has loaded; calling them before the script executes will result in undefined.

In a Jest or React Testing Library environment, you can mock the global window.seatext object to verify that your components call the expected API. However, for an end‑to‑end sanity check, the manual console approach described above is sufficient and does not require any test framework.

Common pitfalls and how to avoid them

Pitfall 1 – Placing the snippet inside a React component’s render method or a useEffect that runs after the first paint. This causes the script to load after React has already mounted the UI, which can lead to a flash of unmodified content. Fix: keep the snippet in the static HTML file (public/index.html) or in the root template that is sent with the initial server response.

Pitfall 2 – Forgetting to rebuild after editing index.html. If you modify the file but do not restart the dev server, the browser serves the cached version without the snippet. Fix: run npm start again or use a dev server that watches file changes.

Pitfall 3 – Assuming that a successful network request means the script executed. Some corporate proxies or browser extensions can return a 200 response with empty content. Always verify the console log or the window.seatext.ready() check.

Pitfall 4 – Ignoring localStorage permission errors. If your app runs inside a sandboxed iframe or a domain that blocks localStorage, the script will throw an error and may not initialize. Ensure the top‑level document has permission to read/write localStorage.

Limitations and when testing may not apply

The verification steps assume that you are testing a standard React SPA served over HTTP or HTTPS. If you are using server‑side rendering (SSR) with Next.js or Remix, the snippet must be added to the document that is sent to the browser; the same steps apply, but you must ensure the snippet is not stripped during hydration.

If your application employs a strict Content Security Policy that disallows inline scripts or external scripts from the SeaText domain, the snippet will be blocked regardless of correct placement. In that case, you need to add the SeaText host to the script‑src directive or use a nonce‑based approach, which is outside the scope of this guide.

The tests described here confirm that the SeaText API is ready, but they do not validate that the AI agents are actually rewriting content. To see the rewriting in action, you need to trigger a paid‑click simulation (e.g., by setting the appropriate UTM parameters) and then inspect the DOM for changed headlines or CTAs.

Frequently asked questions

• Q: How long should I wait after reloading before checking the console? A: The SeaText snippet loads asynchronously, so the initialization log usually appears within a few hundred milliseconds after the network request completes. If you do not see it after two seconds, reload and check the Network tab for errors.
• Q: Can I test SeaText AI in a production build? A: Yes. The same verification steps work in a production build served via npm run build and serve -s build, as long as the snippet is present in the public/index.html file that gets copied into the build output.
• Q: What if I see the snippet request but no console log? A: This often indicates that the script was fetched but threw an error during execution. Open the Console and look for a red error message; common causes are missing localStorage access or a CSP violation.
• Q: Does the window.seatext.ready() method work in older browsers? A: The method is attached to the window object by the snippet, which is transpiled to ES5, so it is supported in any browser that supports ES5 and can add properties to window—essentially all modern browsers used for React apps.
• Q: Should I disable ad‑blockers while testing? A: Some ad‑blockers mistakenly flag the SeaText script as a tracking resource and block it. Temporarily disabling the blocker or adding an exception for your domain ensures a clean test.