jQuery function filter with attribute name contains square bracket is not working

[colandchan]

Description

Select elements by name attribute, then use filter with selector. If the selector contains square bracket, sometimes the filter did not work as expected.

In the test case, the first console.log returns 2 as expected.
The second console.log returns 0 which expected to be 1.

Link to test case

http://jsfiddle.net/Lqv9yjn3/1/

[timmywil]

This seems valid. However, the easy workaround is to wrap your value in quotes. https://jsfiddle.net/Lqv9yjn3/10/

[dmethvin]

I know we've seen these reports before but I'm too lazy to look it up in closed issues. The CSS spec says:

Attribute values must be identifiers or strings. - https://drafts.csswg.org/css2/selector.html#attribute-selectors

Identifiers don't have ] in them but quoted strings can.

[timmywil]

Identifiers can have escaped characters. In this case, escaping the ] should work.

[timmywil]

Actually, this is fixed in Sizzle master (jquery/sizzle#408), but we need to update Sizzle in jQuery.