766373 - attributes[0].firstChild is now null in FF14 for a simple DOM request using XMLHttpRequest

Status: RESOLVED WONTFIX

(Core :: DOM: Core & HTML, defect)

Description

[wolverinero79]

Attachment: DOMTest.zip

User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.1.4322; .NET4.0C; .NET4.0E; InfoPath.3; MS-RTC LM 8)

Steps to reproduce:

See attached files for an example.  A simple DOM request via XMLHttpRequest no longer works when checking attributes[0].firstChild of a returned node element.


Actual results:

Firefox 13 returns an object text string.  Firefox 14 returns null.


Expected results:

Firefox 14 should do what Firefox 13 did (Firefox has done this at least since Firefox 5).

Comment 1

[Boris Zbarsky [:bzbarsky]]

This was a purposeful change to align with the DOM4 spec, I believe.  See bug 737122.

Note that use of .firstChild on attribute nodes has warned that it's deprecated since Firefox 7 (see bug 661327, which added the warnings).