I'm unable to Edit Categories under the Categories tab of a Channel Entry view. When I click on Edit Categories nothing happens. Looking at Console this is the error it produces:

Uncaught TypeError: Cannot read property 'clone' of undefined 

I've been using EE for four years and have never had this issue. Any thoughts?

Using EE 2.8.1.

1 Answer 1


Sounds like this is a known js error - maybe patch here will work? https://support.ellislab.com/bugs/detail/20237

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