Error:Unable to get property '$o_3' of undefined or null reference
Huh? A bit of Googling showed that others had come across it to
The post included this comment "Note that this error only occurs when you turn on the “Use Legacy form rendering”. Sure enough changing this setting to No avoids the error.
But what if you want to preserve the faster form rendering? Patric provide the solution in his blog.
Add the following line before calling the prefilter function.
&& && ();