Screen rotation not working on X.com when using ArcSphere browser on iPhone

Twelve Nov 11, 2025

When I open X.com in the ArcSphere browser on iPhone, the screen does not rotate when I turn the phone sideways. The page stays locked in portrait mode. The same page rotates correctly when opened in Safari or in the X app.

Steps to Reproduce:

Open ArcSphere browser on iPhone.
Navigate to X.com.
Turn the phone sideways.
Observe that the screen does not rotate.

Expected Behavior:

The X.com interface and videos should rotate to landscape view when the phone is turned.

Actual Behavior:

The page remains in portrait mode regardless of device orientation.

Additional Info:

I recorded a video demonstrating this issue in ArcSphere.
I also recorded a comparison video showing normal rotation in Safari and the X app.
The issue appears specific to ArcSphere on iOS.

Environment: