when redirect gives an error “undefined”-Collection of common programming errors

I have an odd problem. When I click my button to redirect to a certain controller method it gives me an error “UNDEFINED” but when I refresh the page it gives me the right output.

You can access my site here: http://apps.stratpoint.com:9114/login

Don’t know where to debug this kind of problem. Help anyone.

1. One scenario when redirect undefined comes is when the helper class has not been loaded. Make sure you have loaded url helper- this is needed for redirect to work.

Originally posted 2013-11-09 21:08:42.