What does your script primarily do (e.g., , display a dashboard , automate emails )?
Make sure your application clearly states what it does on its landing page to build user trust.
Submit your app for verification. Once Google verifies you as a "verified publisher," the banner is removed for all users. What does your script primarily do (e
Configure your OAuth consent screen details and add your privacy policy.
) to prevent your code from accessing the parent page's elements, including the banner itself. Summary Table: Removal Options Difficulty iFrame Embedding Hides banner on the host site Google Sites Often suppresses banner for viewers Workspace (Internal) No banner for users in your domain GCP Verification Removes banner for public users linking to a GCP project Google Apps Script remove warning banner - Stack Overflow Once Google verifies you as a "verified publisher,"
If your app is used by members of your Google Workspace organization, you can eliminate the warning without full public verification.
If you want to distribute your script widely without the unverified app layout issues, you can transition your web application into an official . open uBlock Origin
Open the script web app, open uBlock Origin, select the "element picker" tool, click on the warning banner, and create a custom filter to block it.