1 This test ensures that the lifecycle callback of a parser-made element is visible in following script block.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS window.callbacksCalled is []
7 PASS window.callbacksCalled is ['X-FOO']
8 PASS window.callbacksCalled is ['X-FOO', 'X-BAR']
9 PASS window.callbacksCalled is ['X-FOO', 'X-BAR']
10 PASS successfullyParsed is true