Remove This Application Was Created By A Google Apps Script User -
By understanding these limitations, you can better plan your project's user experience from the start.
Google serves Apps Script web applications within a strict execution environment. The banner resides in a parent window frame or a completely different domain context than your code. Because of web browsers' , JavaScript running inside your web app cannot access, modify, or inject styles into the parent frame containing Google's banner. Any attempt to alter the DOM of that wrapper will trigger a cross-origin security error. How to Completely Remove or Bypass the Banner
If your script does not actually need sensitive scopes, remove them from appsscript.json and the OAuth consent screen.
What if you cannot complete verification (e.g., you use a personal Gmail account or cannot afford the time/cost)?
Based on your request, it sounds like you are either trying to from your Google environment, or you are trying to stop a script that is automatically creating documents or emails with that subject line. By understanding these limitations, you can better plan
If you just want a clean user experience for a small tool, consider making the app internal or hosting it on another platform (e.g., Glide, Bubble, or a simple Node.js server).
The short answer is that the "This application was created by a Google Apps Script user" banner from a native Google Apps Script web app [1, 2]. Google deliberately hardcodes this warning banner at the top of the screen as a mandatory security feature to prevent phishing and protect users [1, 2].
This application was created by [your domain]
Method 4: Transition to Custom HTML with Google Apps Script as an API Because of web browsers' , JavaScript running inside
You cannot hide the Google permissions page, but you can embed your web app in an iframe on your own website. Then users see your domain, not Google’s warning screen — though Google may still show a small permissions popup.
Use the following HTML code on your own website:
: Google provides extensive documentation on Google Apps Script and Google Workspace app development. There might be specific guidance on customizing or removing such notices.
Using a service like or a simple Node.js/Express server, you can fetch the HTML content from your Google Apps Script, strip out the Google-injected header tags, and serve the cleaned HTML on your own custom domain. Pros: Complete removal of the banner; professional URL. What if you cannot complete verification (e
If your app is built to serve inside Google Sheets, Docs, or Gmail, transform your standalone web app into an official . Add-ons are published through the Google Cloud Console. They undergo an official verification process by Google.
Use code with caution.
If you are building a client-facing application or an enterprise tool, this banner can look unprofessional. Use the following verified methods to remove it from your users' view.
Once verified:
The banner is generally not shown to other users within the as the script owner.
