invalid array length in WATrigger.js
I'm modifying an existing DataAssist Insert page that has an image upload behavior, and when I double click the Upload Photo in the Server Behavior panel, I get the following error and the panel never fully loads.
While executing onLoad in WA_DFP_FileUpload.htm, the following JavaScript error(s) occurred:
At line 444 of file "…WATrigger.js": invalid array length