Bug 225960

Summary: cave.town - partial rendering of the page for WKWebView browsers
Product: WebKit Reporter: karl <karl+webkit>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: BrowserCompat, InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://www.cave.town/products/685404-are-you-tired-of-me-yet-long-sleeve

Description karl 2021-05-18 23:23:49 PDT
Steps to reproduce

1. With Firefox on iOS
2. Go to https://www.cave.town/products/685404-are-you-tired-of-me-yet-long-sleeve
3.  Tap any of the six button for size (S, M, L, etc.) 

Expected:
Page shows selection of the size

Actual:
black rectangles flash back and forth on the left and right halves of the screen for a few seconds.

This was reported as a webcompat bug.
https://github.com/webcompat/web-bugs/issues/72514

It reproduces on Chrome iOS and Firefox iOS
It doesn't reproduce on Safari iOS.
Comment 1 Radar WebKit Bug Importer 2021-05-19 09:22:02 PDT
<rdar://problem/78208897>