Tests that pause on exception works.
Script source was shown.
Script execution paused.
Call stack:
0) throwAnException (debugger-pause-on-exception.js:16)
1) handleClick (debugger-pause-on-exception.js:21)
[setTimeout]
0) (debugger-pause-on-exception.js:35)
Paused on exceptionReferenceError: unknown_var is not defined
Script execution resumed.