Bug 151926

Summary: Block formatting context (overflow:hidden) doesn't clear float if two clear:both divs at end of container in between
Product: WebKit Reporter: Chris Rebert <webkit>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: simon.fraser, webkit-bug-importer
Priority: P2 Keywords: HasReduction, InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
URL: https://bugzilla.mozilla.org/attachment.cgi?id=8665202
See Also: http://code.google.com/p/chromium/issues/detail?id=535381
https://bugzilla.mozilla.org/show_bug.cgi?id=1196255
Attachments:
Description Flags
Screenshot of incorrect rendering in WebKit Nightly
none
Screenshot of correct rendering in Chrome Canary none

Chris Rebert
Reported 2015-12-06 15:45:18 PST
Created attachment 266740 [details] Screenshot of incorrect rendering in WebKit Nightly Steps to reproduce: 1. Open https://bugzilla.mozilla.org/attachment.cgi?id=8665202 in WebKit Nightly Expected results: The yellow box should be entirely below (with respect to the Y axis) the blue floating box. See Chrome Canary screenshot. IE11 and Firefox Nightly also behave like Chrome Canary. Actual results: The blue floating box is entirely within the yellow box. See WebKit Nightly screenshot. Analogous Chrome bug: https://code.google.com/p/chromium/issues/detail?id=535381 Originally discovered in: https://bugzilla.mozilla.org/show_bug.cgi?id=1196255
Attachments
Screenshot of incorrect rendering in WebKit Nightly (12.32 KB, image/png)
2015-12-06 15:45 PST, Chris Rebert 		no flags
Details
Screenshot of correct rendering in Chrome Canary (31.06 KB, image/png)
2015-12-06 15:46 PST, Chris Rebert 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Chris Rebert
Comment 1 2015-12-06 15:46:37 PST
Created attachment 266742 [details] Screenshot of correct rendering in Chrome Canary
Radar WebKit Bug Importer
Comment 2 2016-01-16 02:57:04 PST
<rdar://problem/24219751>
Chris Rebert
Comment 3 2016-03-22 16:09:45 PDT
Still broken in Safari Version 9.1 (11601.5.17.1).
Chris Rebert
Comment 4 2016-09-17 23:24:23 PDT
Still broken in Tech Preview Release 13 (WebKit 11603.1.5). Worth noting that this was fixed in Chrome and the patch looks trivial: https://codereview.chromium.org/1393533002
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