Bug 129742 – Form-association for <img> is inconsistent

• Status: RESOLVED
• Resolution: FIXED
• Component: Forms

[David Kilzer (:ddkilzer)]

From <https://code.google.com/p/chromium/issues/detail?id=336317>:

Version: all (ancient WebKit bug)
OS: all

What steps will reproduce the problem?
1. Open the following URL:

data:text/html,<div id=willBeRemoved> <div> <form id=f1> <input id=in1> <img id=im1> </div> <input id=in3> <img id=im3> </div> <input id=in2> <img id=im2> <script>var f = document.getElementById('f1'); var d=document.getElementById('willBeRemoved'); d.parentNode.removeChild(d); alert('' + f['im1'] + ',' + f['im2'] + ',' + f['im3']);</script>

What is the expected output? What do you see instead?
Expected: Alert "[object HTMLImageElement],undefined,[object HTMLImageElement]" according to the standard and Firefox.
Actual: Alert "undefined,[object HTMLImageElement],undefined"

[David Kilzer (:ddkilzer)]

<rdar://problem/16220093>

[David Kilzer (:ddkilzer)]

Merge candidate:  <http://src.chromium.org/viewvc/blink?view=rev&rev=165436>

[Ahmad Saleem]

I am able to reproduce this using test case changed into JSFiddle:

Link - https://jsfiddle.net/jscdb4mu/

Outputs across all browsers:

*** Safari 15.6.1 on macOS 12.5.1 ***

undefined,[object HTMLImageElement],undefined

*** Safari Technology Preview 151 ***

undefined,[object HTMLImageElement],undefined

*** Firefox Nightly 105 ***

[object HTMLImageElement],undefined,[object HTMLImageElement]

*** Chrome Canary 106 ***

[object HTMLImageElement],undefined,[object HTMLImageElement]

__________________

Just wanted to share updated test results. Thanks!

[Ryosuke Niwa]

Created attachment 463504 [details]
WIP

[Ryosuke Niwa]

Pull request: https://github.com/WebKit/WebKit/pull/6447

[EWS]

Committed 256629@main (36537bb39ed8): <https://commits.webkit.org/256629@main>

Reviewed commits have been landed. Closing PR #6447 and removing active labels.