This is a testharness.js-based test.
PASS structured clone of message 
PASS undefined 
PASS null 
PASS false 
PASS true 
PASS 1 
PASS NaN 
PASS Infinity 
PASS string 
PASS date 
PASS regexp 
PASS self 
FAIL array assert_array_equals: property 0, property expected to be "present" but was "missing"
PASS object 
PASS error 
Harness: the test ran to completion.

