Application Was Created By A Google Apps Script User | Remove This

When users visit your custom domain, the code runs inside the container without showing the top Google warning header to the audience. 2. Transition to Google Workspace Add-ons

If the script is shared only with users inside your organization , the banner typically disappears.

" This is a mandatory security feature intended to inform users that the application is not an official Google product. Google Issue Tracker When users visit your custom domain, the code

Deploy your Apps Script as a Web App and set to Anyone . Copy the Web app URL provided after deployment.

. This "wraps" the app in your own branding, though it may require specific X-Frame-Options settings in your script to allow embedding. Browser Extensions (Client-Side) " This is a mandatory security feature intended

Install a browser utility such as uBlock Origin. Use its tool to click directly on the banner, then create a local cosmetic filter. The banner will instantly vanish from your browser window, though external visitors will still see it normally. Share public link

function doGet(e) return HtmlService.createHtmlOutputFromFile('index') .setXFrameOptionsMode(HtmlService.XFrameOptionsMode.ALLOWALL); and other services

Google displays this banner as a built-in security measure. Because Google Apps Script allows anyone to write code that interacts with Google Drive, Gmail, and other services, malicious actors could potentially create phishing scripts. The banner serves two primary purposes:

The absolute best way to build a professional app without any Google branding is to treat Google Apps Script strictly as a backend API (headless architecture) and host your user interface somewhere else entirely.