378593 - javascript not handling correctly the lastChild selector, it selects a white space, not an element of the DOM

Status: VERIFIED INVALID

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

Description

[Joao Bordalo]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en) AppleWebKit/419 (KHTML, like Gecko) Safari/419.3
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2

Mozilla browsers don't get the last element of the DOM when using the lastChild selector.

For more info, check my blog post on:

http://joaobordalo.com/articles/2007/04/24/lastchild-in-mozilla-browsers

Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Comment 1

[Mats Palmgren (inactive)]

Please provide a URL or (preferably) attach small example that demonstrates
the problem.

Comment 2

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

This is expected behavior. White space needs to be preserved in the DOM.

Comment 3

[Boris Zbarsky [:bzbarsky]]

Verified.  If you want the last _element_, use lastElementChild.

Note that this is a known longstanding bug in IE; what lastChild returns in IE will actually change depending on the CSS applied.  Every single other browser gets this right.