Tests that MessageEvent.source is correct and can be used for messaging. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". * Sending message 1 to child * Parent received message 2 from child PASS messageEvent.source is frames[0] PASS messageEvent.data is counter + 1 * Sending message 3 to child * Parent received message 4 from child PASS messageEvent.source is frames[0] PASS messageEvent.data is counter + 1 * Sending message 5 to child * Parent received message 6 from child PASS messageEvent.source is frames[0] PASS messageEvent.data is counter + 1 PASS successfullyParsed is true TEST COMPLETE -------- Frame: '' -------- * Child received message 1 from parent PASS messageEvent.source is parent * Sending message 2 to parent * Child received message 3 from parent PASS messageEvent.source is parent * Sending message 4 to parent * Child received message 5 from parent PASS messageEvent.source is parent * Sending message 6 to parent