如何找出导致Protractor同步变慢的原因？

Question

我有一个我正在测试的应用程序，e2e测试似乎挂起并失败，直到我使用browser.ignoreSynchronization=true。优选地，我宁愿修复应用程序然后使用此行。根据此评论，我知道它与$http和$timeout有关：https://github.com/angular/protractor/blob/9891d430aff477c5feb80ae01b48356866820132/lib/protractor.js#L158

  /**
   * If true, Protractor will not attempt to synchronize with the page before
   * performing actions. This can be harmful because Protractor will not wait
   * until $timeouts and $http calls have been processed, which can cause
   * tests to become flaky. This should be used only when necessary, such as
   * when a page continuously polls an API using $timeout.
   *
   * @type {boolean}
   */

是否有一种方法可以精确查明导致此延迟的原因？