Recently after upgrading to the newer version (8.7.1 to 9.2.5) of Click Dimensions, we started getting below error in one of the tabs in it. (during expand)
We were getting this error on the old forms that we had copied and created from the existing OOB Email Sends form.
The issue was because the name of the function had been modified in the newer JavaScript file provided by Click Dimension
Earlier the name of the function was SetTextIframe which was renamed to SetTxtIframe which caused that issue.
Hope it helps..
Nishant Rana's Weblog 
One thought on “ReferenceError: SetTextIframe is not defined in Email Sends Form in Click Dimensions”