I recently wrote some JavaScript that produced a null reference exception (only happens under certain circumstances). In our Dev environment the typical "out of the box" Javascript popup message that would alert me to issue didn't show up.
When we pushed the web resource to QA the "out of the box" JavaScript error message was displayed . I was wondering if there is a way that JavaScript error checking that produces these popups could have been turned off in our dev environment.
I am lost as to why the same code would show the out of the box error in one environment and not the other when the same reproduction steps were taken.