Bug 261053

Summary: A few pixels on top are uninteractable in landscape mode in web app
Product: WebKit Reporter: Yuwei <yuweih>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: bfulgham, simon.fraser, thorton, webkit-bug-importer, wenson_hsieh, zalan
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: iPhone / iPad   
OS: iOS 16   

Description Yuwei 2023-09-01 16:51:28 PDT 
It appears that in landscape mode in web app, events are not fired for touches happened at the top ~10 pixels. This is presumably where the status bar would reside if it was visible. The issue is not reproducible in portrait mode, nor in a regular native app.

Repro:

1. Visit https://ywh233.github.io/
2. Add the site to home screen
3. Open the site from the icon on home screen
4. Rotate phone to landscape
5. Tap `iOS unresponsive top area in landscape mode repro`
6. Try to tap `Tap here` a few times

Expected:

The dialog should pop up every single time you tap the link

Actual:

The dialog only pops up if you tap the lower part of the link. While in portrait mode, the link seems to be much more responsive.
Comment 1 Radar WebKit Bug Importer 2023-09-08 16:52:16 PDT 
<rdar://problem/115197158>