If you are the creator of the script or web app and want to remove the warning for all your users permanently, the official Google solution is to complete .

Each scenario requires a different approach. Below, we cover .

Install an extension like or uBlock Origin .

Some users try embedding the Apps Script URL in another website. However, the banner often remains because it is tied to the Apps Script domain .

Another way to handle the banner layout without altering Google’s backend code is to embed your Apps Script URL inside an external, free website. The banner will still technically exist, but it will be contained inside the embedded element, allowing you to control the look of the parent website.

You can remove or bypass this message for free in several legitimate ways.

You can host a simple HTML file for free on services like GitHub Pages or Google Sites . Example Code:

Select Web app and set "Execute as" to your account and "Who has access" to "Anyone". Step 3: Copy the Web App URL .

While you can go through the Google Cloud Project verification process to remove the banner, this is tailored for large-scale production apps. For smaller, internal tools, personal projects, or free apps, the .