[popover-attribute-basic.html]
  [Changing the popover type in a "beforetoggle" event handler should throw an exception (during showPopover())]
    expected: FAIL

  [Changing a popover from auto to manual (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to invalid (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to null (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via attr), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via attr), and then invalid during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via attr), and then null during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to auto (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via attr), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via attr), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via attr), and then invalid during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via attr), and then null during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to manual (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to invalid (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to null (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to auto (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to null (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via idl), and then auto during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to null (via idl), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to null (via idl), and then invalid during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via idl), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from auto to undefined (via idl), and then invalid during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to null (via idl), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to null (via idl), and then invalid during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via idl), and then manual during 'beforetoggle' works]
    expected: FAIL

  [Changing a popover from manual to undefined (via idl), and then invalid during 'beforetoggle' works]
    expected: FAIL