This is a testharness.js-based test.
[FAIL] Check autoplay policy when playing audible media element
  promise_test: Unhandled rejection with value: object "TypeError: window.navigator.getAutoplayPolicy is not a function"
[FAIL] Check autoplay policy when playing inaudible media element
  promise_test: Unhandled rejection with value: object "TypeError: window.navigator.getAutoplayPolicy is not a function"
Harness: the test ran to completion.