Bug 36163

Summary:

Garbage shown outside HTML if HTML is absolutely positioned

Product:

WebKit

Reporter:

Yuzo Fujishima <yuzo>

Component:

CSS

Assignee:

Simon Fraser (smfr) <simon.fraser>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

abarth, eric, hamaji, hayato, hyatt, mitz, sam, simon.fraser, tkent, webkit.review.bot

Priority:

Version:

528+ (Nightly build)

Hardware:

Mac

OS:

OS X 10.5

Attachments:

Description	Flags
Screenshot	none
Testcase	none
Patch	hyatt: review+

Yuzo Fujishima

Reported 2010-03-16 04:40:09 PDT

Created attachment 50782 [details] Screenshot When HTML element is absolutely positioned, garbage can be shown outside HTML. What steps will reproduce the problem? 1. Open the attached abs-pos-html.html. (Any HTML document where HTML element is absolutely positioned should do.) 2. Resize the browser a few times. 3. Observe the area outside of HTML, i.e., outside the red box. What is the expected output? What do you see instead? The page should be rendered cleanly. Instead, the area outside the red box contains garbages, e.g., gray lines. Please see the attached screenshot. Firefox 3.6 and Opera 10.10 draws cleanly on OS X 10.5.8 and Vista SP1. IE8 puts HTML at (0, 0), i.e., ignores the position property. Both WebKit 455974 and Chrome 5.0.307.11 beta fail.

Attachments
Screenshot (14.43 KB, image/png) 2010-03-16 04:40 PDT, Yuzo Fujishima	no flags	Details
Testcase (194 bytes, text/html) 2010-03-16 04:40 PDT, Yuzo Fujishima	no flags	Details
Patch (12.23 KB, patch) 2010-06-15 14:42 PDT, Simon Fraser (smfr)	hyatt: review+	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.