Zoom App with plain HTML shows blank white screen on mobile client

Zoom Apps Configuration
Created sample plain HTML file with basic CSS and put that html URL into setting up the zoom app.

I’ve developed a Zoom App using plain HTML/JavaScript (no framework or App SDK code). It works perfectly in the Zoom Desktop Client (Windows/Mac), but when I try to open the same app in the Zoom Mobile Client (Android), it just displays a blank white screen.

Initially, during app setup in the Zoom Marketplace, I had disabled the “Mobile support” option. Later, I enabled it, hoping the app would load on mobile, but it still shows a blank screen.

A few questions:

  1. Is plain HTML/JS-based Zoom App expected to work on the mobile client if “Mobile support” is enabled?

  2. Is there any cache or configuration delay after toggling the “Mobile support” option?

  3. Is there a recommended way to detect and handle unsupported environments (like mobile) with a fallback message?

Would appreciate any guidance or documentation references to help resolve this.

Thanks in advance!

Have you gotten debugging information from the mobile device? That might be the best way to understand what’s happening.