1 This page tests various event attributes after dispatchEvent throws an exception.
3 If the test passes, you'll see a series of PASS messages below.
5 PASS: event.target should be null and is.
6 PASS: event.currentTarget should be null and is.
7 PASS: event.relatedTarget should be null and is.
8 PASS: event.eventPhase should be 0 and is.