455664 - Parsing-Problem of IE Conditional Comments in relation to ACE-Strings

Status: RESOLVED DUPLICATE of bug 214476

(Firefox :: General, defect)

Description

[Dave]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1

If you're using Conditional Comments for IE in relation with a Domain containing ä,ö,ü etc., the created ACE-String will be misinterpreted as the end of the conditional comment.

Reproducible: Always

Steps to Reproduce:
1.Domain in ACE-String
2.Conditional Comment
3.see source code
Actual Results:  
the content in the conditional comment is interpreted by firefox as well, not only by IE

Expected Results:  
ignore the Conditional comment

Comment 1

[Jo Hermans]

Can you provide an example URL, please ?

Comment 2

[Dave]

I found it here: all other Browsers working fine, as far as I see: http://www.müsliburg.ch/

Comment 3

[Jo Hermans]

Ah! this is another case of bug 233270 comment 1 : the characters "--" (found in <http://www.xn--msliburg-65a.ch>) are NOT allowed inside a comment.

This should be normally be INVALID (Firefox is more strict than Internet Explorer), but a solution will come in bug 214476. W3.org (the organization that defines the HTML standard) has decided to relax those parsing requirements for HTML 5, because the error is all too common (and downright silly).