If you are distributing a or add-on to users outside your domain, you cannot remove the warning for free. Google mandates verification through the OAuth verification process .
Only locally via browser extensions. The server-side security dialog remains. Removing "This application was created by a Google
If you use a Google Workspace account, the banner will not appear for other users within the same domain . Uses sensitive OAuth scopes (e
: document.getElementById('warning').style.display = 'none'; . 5. Official Verification (Long-Term Solution) Domain Restrictions: If you use a Google Workspace
If the app is only for your personal use or a small internal team, you can use a browser extension to hide the banner locally.