Bug 113967

Summary: Rendering errors and inconsistencies on Chrome mobile with large fixed styling
Product: WebKit Reporter: bobby
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: UNCONFIRMED ---    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Android   
OS: Android   
Description Flags
html file demonstrating the bug
video footage of broken page on mobile :( none

Description bobby 2013-04-04 15:14:27 PDT
Created attachment 196537 [details]
 html file demonstrating the bug

A specific combination of large fonts with fixed positioning causes stuttering, ugly artifacts, incorrect cropping and erroneous z-indexing. I've attached an html file to illustrate these problems.

Firefox and Chrome on desktop have no problem rendering the page. However, most mobile browsers break in some way, including webkit-backed ones. Some of the problems:

* The tiled background does not stay fixed
* Text on a lower z-index appears in front for some time, becomes correct after some sort of refresh occurs
* Artifacts appear after scrolling down pretty far, and scrolling back up
Comment 1 bobby 2013-04-04 15:15:54 PDT
Created attachment 196538 [details]
video footage of broken page on mobile :(

This is video of interaction with Firefox, but Chrome reacts *very* similar.