Filter plugin select2 Uncaught TypeError: element.getAttribute is not a function

[rickdubiel]

I've recently upgraded from v2.5.2 to v2.6.0 and ran across a tiny issue with the $.parseHTML update when using the select2 plugin. I believe this issue addresses that update:

#905

I narrowed it down to the ruleValueSelect template leaving a single space at the beginning of the template and then $.parseHtml parses that out as an individual array item. When select2 tries to an apply an id to that item by using getAttribute the error occurs. See below:

The jQuery docs recommended using jQuery.trim in order to prevent trailing/leading whitespace from being converted to text nodes. That indeed did resolve the issue. Here's a PR with the change:

#923

Here's a fiddle with the issue:

https://jsfiddle.net/6qyLvhpb/1/

Just need to make a selection and watch the console to see the error.

Thanks!

[mistic100]

Thank you for your super complete analysis.

I just released a patch