Bug 233207

Summary: REGRESSION (iOS 15.1): position: sticky; bottom: 0; on table cell, no longer works
Product: WebKit Reporter: edwin.hoffland
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: bfulgham, jonlee, mrobinson, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: All   
OS: iOS 15   
Attachments:
Description Flags
Example html none

edwin.hoffland
Reported 2021-11-16 11:42:42 PST
Created attachment 444418 [details] Example html Since iOS update 15.1 using position: sticky; to stick a <td> element to the bottom of the page, no longer works. The table row appears somewhere in the middle of the screen, depending on the size of the previous row. See the attached testcase.html for an example. The problem appears in all browsers. On iOS 15.0 and before it worked fine.
Attachments
Example html (489 bytes, text/html)
2021-11-16 11:42 PST, edwin.hoffland 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2021-11-17 09:27:00 PST
> The problem appears in all browsers. Could you please clarify? The behavior seems different in Chrome, but the test doesn't have clear pass/fail criteria.
Radar WebKit Bug Importer
Comment 2 2021-11-17 09:27:18 PST
<rdar://problem/85507568>
edwin.hoffland
Comment 3 2021-11-17 10:03:24 PST
(In reply to Alexey Proskuryakov from comment #1) > > The problem appears in all browsers. > > Could you please clarify? The behavior seems different in Chrome, but the > test doesn't have clear pass/fail criteria. I tried the testcase in Safari, Firefox and Chrome on iOS15.1 The pass criteria is that the footer bar should stick to the bottom of the screen, until you scroll down. This works correctly on iOS15.0 and before. On iOS15.1 it fails because the footer bar is not sticking to the bottom of the screen, but floats somewhere in the middle.
Martin Robinson
Comment 4 2021-12-22 06:47:11 PST
*** This bug has been marked as a duplicate of bug 232431 ***
Martin Robinson
Comment 5 2021-12-22 06:47:30 PST
I have confirmed this was fixed in https://bugs.webkit.org/show_bug.cgi?id=232431.
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