The icon at the sources tab within Google Chrome Developer Tools at the rightmost pane which looks like a stop sign with two vertical slits in it (like an equals sign rotated ninety degrees) has three states that it may be toggled to by clicking upon it.

greyed-out:	Don't pause on exceptions.
blue:	Pause on all exceptions
red:	Pause on uncaught exceptions

The "pause" behaves not unlike a breakpoint was at the line of code of interest.