[Webkit-unassigned] [Bug 19149] New: A position fixed node's offsetParent should return null
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue May 20 12:11:22 PDT 2008
http://bugs.webkit.org/show_bug.cgi?id=19149
Summary: A position fixed node's offsetParent should return null
Product: WebKit
Version: 525.x (Safari 3.1)
Platform: PC
URL: http://www.gtalbot.org/BrowserBugsSection/MSIE8Bugs/CSSO
M-offsetParent-prop.html#ThirdTest
OS/Version: Windows XP
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: HTML DOM
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: browserbugs at gtalbot.org
CSSOM View Module, offsetParent attribute clearly states that
offsetParent of nodeA when nodeA is a position: fixed element should return
null.
"
If any of the following holds true return null and stop this algorithm:
(...)
The computed value of the position property for element A is fixed.
"
http://www.w3.org/TR/cssom-view/#offset-attributes
Steps to reproduce:
1- Load provided URL
2- Click the [return document.getElementById("PositionFixedElem").offsetParent]
button
Actual results in Safari 3.1.1 build 525.17.0 under XP Pro SP3:
document.getElementById("PositionFixedElem").offsetParent = [object
HTMLBodyElement]
Expected results:
document.getElementById("PositionFixedElem").offsetParent = null
Notes:
- Internet Explorer 7, Internet Explorer 8 beta 1 and Opera 9.50 will return
null.
- I have filed a similar bug at
https://bugzilla.mozilla.org/show_bug.cgi?id=434678
I have searched for a duplicate and did not find one.
I have not checked the testcase with a webkit trunk nightly build (526+).
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