Remove This Application Was Created By A Google Apps Script User [NEW]

Do you have a where you could potentially embed the tool?

This only works if every user is in the same Google Workspace domain as the developer. External users will still see the full warning.

Before setting out to remove these security warnings, it's crucial to align your approach with Google's policies and the principles of user trust and safety. Do you have a where you could potentially embed the tool

By default, Apps Script uses a hidden default GCP project. To control trust settings, you must switch to a standard GCP project.

: Malicious actors trying to mimic Google login screens [2]. Before setting out to remove these security warnings,

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

The warning "This application was created by a user" is a security feature, not a bug, making scripts look unauthorized. : Malicious actors trying to mimic Google login screens [2]

: The banner is typically hidden when the web app is embedded within a Google Site or another website.

If you have ever created or used a custom web application built with Google Apps Script, you have likely encountered a persistent, annoying warning banner that states:

For developers building client-facing tools, internal dashboards, or commercial minimal viable products (MVPs), this banner compromises the professional aesthetic and disrupts responsive mobile scaling.