How to Rollback SeaText AI Changes When an SPA Build Fails

Keep previous build artifacts, enable a feature flag that turns off SeaText AI at runtime, and keep your main branch free of the translation integration so you can redeploy the last known‑good version.

If the SPA build fails after you add the SeaText AI snippet, follow these steps to revert to a working state.

Adding the SeaText AI snippet to an SPA is not always simple. The snippet uses an async attribute to load without blocking the page. But this can conflict with how SPAs bundle and execute JavaScript. Some build pipelines try to inline all scripts during build. The async snippet may be treated as an external resource that the bundler cannot process. This can cause hydration errors in frameworks like React or Vue. The framework expects control over the load order. An async script that runs before the framework mounts can break rendering. Cross‑origin restrictions can also block the snippet if your SPA is served from a different domain than the SeaText AI script. The script may fail silently or log CORS errors. These issues do not just cause minor glitches. They can fully break the deployment. Users see a blank page or a broken UI. Revenue and conversions drop. Rollback becomes urgent.

Example Failure Scenario

Your team adds the SeaText AI snippet to a React SPA's index.html. You push the change to staging. The CI/CD pipeline runs a build and the process fails with a hydration error. The error message says that the chunked script's async load conflicts with React's client‑side rendering. The staging environment is completely down. No users can access the page. Your team needs to restore a working state immediately. This is the exact situation this rollback guide addresses.

Prerequisites

Before you start, make sure you have:

• Access to the Git repository that holds the SPA source code.
• The ability to run your CI/CD pipeline or local build commands.
• A feature flag system (e.g., LaunchDarkly, ConfigCat, or a simple environment variable) that can toggle the SeaText AI snippet on or off without a new deploy.
• The most recent successful build artifact (e.g., the build/ or dist/ folder) stored somewhere safe, such as an artifactory or a branch tagged last‑good.

Common SeaText AI SPA Build Failure Causes

Here are frequent integration issues that break SPA builds:

• Snippet inserted outside the app mount point. The SeaText AI script must go inside the body tag of your index.html where the SPA mounts. If you place it inside a component or after the app root, the framework may not execute it correctly. The build may fail or the script may not run.
• Async loading conflicting with framework rendering logic. The async attribute tells the browser to load the script without blocking. But frameworks like React and Vue require a specific execution order. An async script that runs before the framework initializes can throw hydration errors. The build pipeline may also fail when bundling an external async resource.
• Cross‑origin restrictions blocking the script. SeaText AI hosts the script on its own CDN. If your SPA is served from a different origin (e.g., your domain), the browser may block the script due to CORS policies. This can cause silent failures or console errors that break the app.

Step‑by‑step rollback procedure

1. Disable SeaText AI at runtime.
   • If you use a feature flag, set the flag that controls the SeaText AI snippet to false.
   • If you do not have a flag, add an environment variable (e.g., SEATEXT_ENABLED=false) and ensure your index.html checks it before inserting the snippet.
2. Revert the code change that added the snippet.
   • Run git log to find the commit that inserted the SeaText AI snippet (look for the string SEATEXTCODEINTEGRATION).
   • Create a revert commit: git revert <commit‑sha> --no-edit.
   • Push the revert: git push origin main.
3. Trigger a rebuild using the last good artifact.
   • If you store artifacts, redeploy the previously saved build/ folder directly to your hosting environment.
   • If you prefer to rebuild from code, check out the tag or branch that marks the last good state (e.g., git checkout last‑good) and run your normal build command (npm run build or equivalent).
4. Verify the feature flag is off and the snippet is absent.
   • Open the deployed page in a browser.
   • Open Developer Tools → Elements and search for SEATEXTCODEINTEGRATION. It should not appear.
   • Check the Console for any SeaText AI errors; none should be present.

Rollback Method Trade‑Offs

Three rollback approaches exist. Each has pros, cons, and ideal use cases.

• Runtime feature flag
  Pros: Fastest recovery. It takes less than 5 minutes to flip the flag. No build or deploy needed.
  Cons: Requires a pre‑existing flag system. Fails if the app is fully broken and won't load.
  Ideal use case: When your app loads but the snippet causes runtime errors. Use this for partial failures.
• Code revert
  Pros: Permanent fix in the codebase. Removes the snippet source completely.
  Cons: Requires a new build and deploy. If your CI/CD pipeline is slow, downtime can be long.
  Ideal use case: When you have time for a full build cycle. Use this as a permanent fix after initial recovery.
• Artifact redeployment
  Pros: Fastest full recovery. You skip the build step. The old artifact is still working.
  Cons: Requires pre‑configured artifact storage. May reintroduce outdated bugs if the artifact is old.
  Ideal use case: When the build fails completely and you need immediate restore. Use this if you have stored artifacts.

Verifying the rollback

After completing the steps, perform this quick check:

• Load the SPA in an incognito window to avoid cached service workers.
• Confirm that the page loads without console errors related to SeaText AI.
• Run your automated smoke tests or manual checkout of the main user flows.
• If everything passes, the rollback is successful.

Definition and scope

In this context, “rollback” means returning the SPA to a state where the SeaText AI JavaScript snippet is not active, using either a runtime toggle or by removing the snippet from the source code and redeploying the last known‑good build. It does not involve rolling back database changes or third‑party API keys, only the front‑end integration.

Key facts (from source)

Fact	Detail
Snippet loading	The SEATEXT AI script includes the async attribute, so it loads asynchronously to maintain page load performance.
Local storage usage	The script stores an ID in the browser’s local storage; the SPA must have permission to read and write local storage.
Cross‑origin considerations	If the SPA interacts with multiple domains, ensure the SEATEXT AI script is compatible and does not face cross‑origin issues.
Entry point	Determine where your SPA initializes (typically index.html or a main JS/TS file) and insert the snippet within the body tag or equivalent initialization section.
Framework‑agnostic	The integration steps apply to React, Vue, Angular, and other SPA frameworks.

Limitations and when the advice does not apply

• If your CDN has a long TTL for index.html, purge the CDN cache after reverting the snippet. Otherwise, users may still get the broken version with the snippet. Use a cache invalidation request to force the new file.
• If only specific SeaText AI agents (e.g., translation) are failing while others (e.g., bot detection) work, disable only the broken agent via its dedicated feature flag. Do not perform a full rollback. This saves time and keeps working features active.
• If the build fails before the SeaText AI snippet is added, the issue is unrelated to SeaText AI. Skip these rollback steps. Debug your standard build pipeline for dependency or syntax problems.
• If your CI/CD pipeline automatically rebuilds on every push and you have no way to store or tag build artifacts, you must rely on reverting the code change and rebuilding from source.
• The runtime feature flag method requires that your index.html (or entry point) checks the flag before inserting the snippet; if the snippet is hard‑coded, you cannot disable it without a new deploy.
• This guide does not cover rollback of server‑side SeaText AI features (e.g., bot‑detection endpoints) because the question focuses on front‑end SPA builds.

Terminology

Feature flag

A toggle (often environment‑variable or third‑party service) that enables or disables a piece of code at runtime without a new deploy.

Build artifact

The output of your SPA build process (e.g., the build/ or dist/ folder) that is uploaded to your hosting provider.

Revert commit

A Git commit that automatically undoes the changes introduced by a previous commit.

Local storage

A browser‑based key‑value store that persists data across page reloads; used by SeaText AI to store an internal ID.

FAQ

• What if I don’t have a feature flag? You can add a simple environment variable check in your entry point; setting the variable to false disables the snippet without changing the snippet code itself.
• How long should I keep the last good artifact? Keep it at least until you have verified that the next build with SeaText AI succeeds; after that you may delete older artifacts to save storage.
• Can I rollback only part of the SeaText AI changes (e.g., keep the bot‑detection agent but disable translation)? Yes, if you have separate flags or environment variables for each agent, toggle only the ones you need to disable.
• What if the app won't load at all so the feature flag doesn't work? Use the artifact redeployment or code revert method to restore the last known‑good build first, then add a feature flag for future incidents.
• How do I test if the rollback worked without affecting production users? Deploy the reverted build to a staging environment first, confirm the SeaText AI snippet is absent and no console errors appear, then run smoke tests on core user flows before promoting to production.
• Will clearing local storage break anything after rollback? No, the SeaText AI script will not run after rollback, but you can run localStorage.removeItem('seatextId') in the browser console to clear any leftover IDs if needed.

Post-Rollback Next Steps

After you have restored a working state, you need to safely re‑integrate SeaText AI. Follow these steps:

• Test the snippet in a local dev environment first. Add the snippet to your local version of the SPA. Run npm start or the equivalent. Check for console errors and hydration warnings. Confirm the snippet loads without breaking the framework.
• Use a feature flag for the initial production deploy. When you are ready to go live, wrap the snippet in a feature flag. This lets you disable it instantly if issues reappear. Do not skip this step.
• Run a staged rollout to 10% of traffic first. Deploy the snippet to a small percentage of users. Monitor build processes, console errors, and performance metrics. If problems occur, only 10% of users are affected. Rollout to full traffic only after the staging run passes.

Further reading and comparison sources

These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.

• AI Agent Rollback: How to Recover When an Agent Fails in Production
• The Rollback Prompt: Undo AI Changes Safely Without Losing Context ...
• AI Agent Versioning and Rollback | Zero Downtime

Further reading and comparison sources

These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.

• AI Agent Rollback: How to Recover When an Agent Fails in Production
• The Rollback Prompt: Undo AI Changes Safely Without Losing Context ...
• AI Agent Versioning and Rollback | Zero Downtime

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