Issue Summary

When a Forge app uses the confluence:pageBanner module, the banner iframe renders over the Confluence application header (top navigation bar) on mobile browsers, making the header inaccessible or partially hidden.

This is the Forge equivalent of the Connect app issue reported in CONFCLOUD-80726, which describes the same behavior for Connect apps using the atl.general web panel location.

Steps to Reproduce

1. Create a Forge app with a confluence:pageBanner

modules:
  confluence:pageBanner:
    - key: confpanel-page-banner
      resource: main
      render: native
      title: ConfPanel Banner

resources:
  - key: main
    path: src/index.jsx

1. Deploy and install the app on a Confluence Cloud site
2. Open the Confluence site in a mobile browser
3. Navigate to any Confluence page

Expected Results

The Forge module renders below the Confluence application header without overlapping it.

Actual Results

The Forge module panel overlaps and is covered by the Confluence application header, making it invisible.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available