This is a testharness.js-based test.
[FAIL] AudioSession interface: existence and properties of interface object
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface object length
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface object name
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: existence and properties of interface prototype object
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: existence and properties of interface prototype object's "constructor" property
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: existence and properties of interface prototype object's @@unscopables property
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: attribute type
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: attribute state
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession interface: attribute onstatechange
  assert_own_property: self does not have own property "AudioSession" expected property "AudioSession" missing
[FAIL] AudioSession must be primary interface of navigator.audioSession
  assert_equals: wrong typeof object expected "object" but got "undefined"
[FAIL] Stringification of navigator.audioSession
  assert_equals: wrong typeof object expected "object" but got "undefined"
[FAIL] AudioSession interface: navigator.audioSession must inherit property "type" with the proper type
  assert_equals: wrong typeof object expected "object" but got "undefined"
[FAIL] AudioSession interface: navigator.audioSession must inherit property "state" with the proper type
  assert_equals: wrong typeof object expected "object" but got "undefined"
[FAIL] AudioSession interface: navigator.audioSession must inherit property "onstatechange" with the proper type
  assert_equals: wrong typeof object expected "object" but got "undefined"
[FAIL] Navigator interface: attribute audioSession
  assert_true: The prototype object must have a property "audioSession" expected true got false
[FAIL] Navigator interface: navigator must inherit property "audioSession" with the proper type
  assert_inherits: property "audioSession" not found in prototype chain
Harness: the test ran to completion.