[getcredential-extensions.https.html]
  expected: TIMEOUT
  [Bad extensions: extensions is string]
    expected: TIMEOUT

  [Bad extensions: extensions is null]
    expected: NOTRUN

  [Bad extensions: extensions is empty Array]
    expected: NOTRUN

  [Bad extensions: extensions is empty ArrayBuffer]
    expected: NOTRUN

  [Bad extensions: malformatted JSON]
    expected: NOTRUN

  [Bad extensions: JavaScript object]
    expected: NOTRUN

  [Bad extensions: extension ID too long]
    expected: NOTRUN

  [extensions is a nonsensical JSON string]
    expected: NOTRUN

