I'm using Channel Form (Safecracker) on a site which is using Bootstrap.

I'm getting this error:

Uncaught TypeError: Cannot read property 'msie' of undefined

in this script: ACT=10&ui=core,widget,mouse,position,draggable,resizable,button,dialog,datepicker&plugin=markitup,toolbox.expose,overlay,tmpl&file=underscore,cp/date&v=1412459416&use_live_url=y

It happens even if I create form for channel that does not have any fields at all (did that for testing)

Have anyone else experienced similar issue and have a solution for it?

1 Answer 1


This usually happens with duplicate jquery files. You can add either of these parameters


  • Thank you! I use include_jquery="no" already, but haven't been aware of include_assets="no". I think that should do the trick. Will let you know.
    – Yuri Salimovskiy
    Mar 12, 2015 at 18:44
  • 2
    For anyone interested, the error was originated by overlay.js. I ended up commenting out line that adds it in Channel_form_lib.php, as I needed to included assets for most of the fieldtypes.
    – Yuri Salimovskiy
    Mar 13, 2015 at 11:33

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