However, you can completely bypass, remove, or work around this warning banner by using specific deployment strategies.
Create the project using your enterprise Google Workspace account.
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For a quick solution, you can install a browser extension that removes the banner. One such extension is “Google Apps Script WebApp Warning Remover” for Firefox. It simply hides the top warning on Apps Script web app pages.
Under the dropdown configuration, change the setting from "Anyone with a Google account" to "Anyone within [Your Organization Name]" . This link or copies made by others cannot be deleted
When deploying, select and change it from Anyone to Anyone within [Your Company Name] .
Create a standard HTML index file on your hosting platform (such as GitHub Pages or Vercel) and use this structured template: Use code with caution. Try again later
: Publishing your script as a Google Workspace Add-on often removes this specific web-app footer because the code runs within a sidebar or dialog inside a Google app (like Sheets or Gmail) rather than as a standalone webpage. 4. Client-Side Workarounds (Not Recommended for Users)
A well‑known workaround is to on a page you control. This effectively hides the warning banner because the banner is part of the outer Google frame, and iframe restrictions prevent it from being displayed.
Because Apps Script can request permission to read Gmail, access Google Drive, or modify Calendar data, the banner warns users to proceed with caution.