This is a testharness.js-based test.
[FAIL] HTMLBodyElement interface: attribute onorientationchange
  assert_true: The prototype object must have a property "onorientationchange" expected true got false
[FAIL] HTMLBodyElement interface: document.body must inherit property "onorientationchange" with the proper type
  assert_inherits: property "onorientationchange" not found in prototype chain
[FAIL] Window interface: attribute orientation
  assert_own_property: The global object must have a property "orientation" expected property "orientation" missing
[FAIL] Window interface: attribute onorientationchange
  assert_own_property: The global object must have a property "onorientationchange" expected property "onorientationchange" missing
[FAIL] Window interface: window must inherit property "orientation" with the proper type
  assert_own_property: expected property "orientation" missing
[FAIL] Window interface: window must inherit property "onorientationchange" with the proper type
  assert_own_property: expected property "onorientationchange" missing
Harness: the test ran to completion.