hasClass, removeClass don't work in IE if attribute contains \r character

[sever]

hasClass, removeClass methods don't work in IE (ver. 7 & 8) if class attribute contains \r character. I have modified regular expression used in hasClass function: /[\n\t]/g => /[\r\n\t]/g After this change hasClass, removeClass, removeAttr methods works fine.

[ajpiano]

Thanks for taking the time to contribute to the jQuery project by filing a ticket. We require that all bugs include a test case on jsFiddle (​http://jsfiddle.net) that clearly demonstrates the issue. If you could please provide such a test case and link it here, we can proceed and investigate this issue.

If you would like to provide a patch, please do so via Github. Thanks again.

[Rick Waldron]

I'm curious to know what the use case is for having a carriage return in your class attribute.

[anonymous]

Replying to rwaldron:

I'm curious to know what the use case is for having a carriage return in your class attribute.

I have html code formed by XSLT. For example:

<td>
<xsl:attribute name="class">

class1 class2 class3

</xsl:attribute>
</td>


in html we will see:
<td class="

class1 class2 class3

">
</td>

[Rick Waldron]

This is not a bug in jQuery. You can EASILY trim that whitespace with jQuery.trim()

​http://jsfiddle.net/rwaldron/PWuW5/

[jitter]

This may be an edge case and could be avoided in the first case but I think this bug is valid. The specs say browser should ignore carriage return characters in the className property (which they do) but jQuery doesn't and thus creates a inconsistency.

[jitter]

​test case
​pull request for Sizzle
​pull request for jQuery

[dmethvin]

No debate would be complete without a reference to a spec:

This attribute assigns a class name or set of class names to an element. Any number of elements may be assigned the same class name or names. Multiple class names must be separated by white space characters. -- ​http://www.w3.org/TR/html401/struct/global.html#h-7.5.2

White space (spaces, newlines, tabs, and comments) may appear before or after each section. -- ​http://www.w3.org/TR/html401/struct/global.html#h-7.1

The \r isn't mentioned but since \n and \r often go together it seems reasonable to accept both.

[sever]

Replying to dmethvin:

The \r isn't mentioned but since \n and \r often go together it seems reasonable to accept both.

In my case '\r' appears right after the last class name: 'class1 class2\r'.

[jitter]

Replying to dmethvin:

The \r isn't mentioned but since \n and \r often go together it seems reasonable to accept both.

The class attribute if defined as cdata-list and the specs for cdata (​http://www.w3.org/TR/html401/types.html#type-cdata) say

• Ignore line feeds

[john]

Landed both the Sizzle and jQuery pulls.

[jitter]

Move fixed tickets to appropriate milestone