How to debug DOM exceptions in Webkit?

I have a problem with DOM exceptions in Google Chrome as well as in all other Webkit based browsers. I'm working on a G开发者_开发百科oogle Maps based data stream browser, and in these browsers it freezes the map after several zoom-ins and zoom-outs.

It throws an INDEX_SIZE_ERR: DOM Exception 1 with a rather unintelligible stack trace. And what's even worse, when I try to use the inspector to pause on exceptions, the tab crashes.

I've tried it in Google Chrome, in Chromium and in Midori, all three give the same result.

I would appreciate any input on how to trace this problem, or on what can possibly be causing it.

Just one last thought - the problem has appeared after Google had rolled out it's API v.3.4. Until recently I have been able to suppress this problem by using the 3.3 version, but now that it has been retired, I have no choice but to face it.

Open up Chrome DevTools (Ctrl-Shift-I on Windows/Linux), switch to the Scripts tab and click the "Pause" button in the status bar (tri-state) until its tooltip shows "Pause on uncaught exceptions", then activate the failing code.

INDEX_SIZE_ERR can happen when accessing a typed array, like an Int8Array or something, outside of its bounds. Are you doing that anywhere?