[createcredential-extensions.https.html]
  expected: TIMEOUT
  [Bad extensions: extensions is null]
    expected: TIMEOUT

  [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

  [empty appid in create request]
    expected: NOTRUN

  [null appid in create request]
    expected: NOTRUN

  [appid in create request]
    expected: NOTRUN

