Error .toLowerCase is not a function

[biggunn]

Unable to get this extension to work. Noticed in console I am getting this error:

TypeError: filterElement[fieldName].toLowerCase is not a function
at matchField (app.js:473)
at app.js:281

in my task templates I have the description as follows (as per the instructions):
{"applywhen":[{"System.Tags" : ["UX Core"]}]}

I am adding the tag "UX Core" in my Product Backlog Item and then trying to use the 1-click-child-links, but nothing happens.

Is this an error in the code, or am I doing something incorrect?

[figueiredorui]

Fixed on v0.11.1