zlacker

Same here, we had an IE8 bug that prevented the initial voice over of the screen reader (JAWS). No dev could reproduce it because we all had DevTools open.

>>eforti+(OP)
I can't remember the actual bug now, but one of my early career memories was hunting down an IE7 issue by using bookmarklets to alert() values. (Did IE7 even have dev tools?)

>>smrq+CL
There was a downloadable developer toolbar for IE6 and IE7, and scripts could be debugged in the external Windows Script Debugger. The developer toolbar even told you which elements had the famous hasLayout attribute applied, which completely changed how it was rendered and interacted with other objects, which was invaluable.

>>eforti+(OP)
I had a similar issue, worked fine when I was testing it on my machine, but I had dev tools open to see any potential issues.

Turns out IE8 doesn't define console until the devtools are open. That caused me to pull a few hairs out.