749627 - Incorrect syntax error message for XML data islands

Status: RESOLVED DUPLICATE of bug 749367

(Core :: XML, defect)

Description

[will69]

Attachment: xml-data-block.html

User Agent: Mozilla/5.0 (X11; Linux i686; rv:15.0) Gecko/20120427 Firefox/15.0a1
Build ID: 20120427030500

Steps to reproduce:

Save the attachment from the MDN article "Using XML Data Islands in Mozilla" (https://developer.mozilla.org/en/Using_XML_Data_Islands_in_Mozilla) to disk and load the HTML file (see attachment) into a new tab. Open the Web Console.


Actual results:

The Web Console displays the following message: "SyntaxError: XML can't be the whole program @ file:///.../xml-data-block.html:16".

This happens for other files with XML data islands, too.


Expected results:

No syntax error should have been logged.

Comment 1

[will69]

Here's the regression range:
2012-04-25-03-06-47-mozilla-central OK
2012-04-26-03-05-04-mozilla-central NOT OK

http://hg.mozilla.org/mozilla-central/rev/75c7378c87b6 OK
http://hg.mozilla.org/mozilla-central/rev/cc5254f9825f NOT OK

http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=75c7378c87b6&tochange=cc5254f9825f

Comment 2

[siim]

Underscore templates cause lots of errors:

SyntaxError: XML can't be the whole program
SyntaxError: illegal XML character - for "<%"
SyntaxError: class is a reserved identifier
SyntaxError: syntax error

On Nightly, Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:15.0) Gecko/15.0 Firefox/15.0a1
and the same on windows build

Comment 3

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Updating should fix. Please reopen if it doesn't.