...config\n    }\n    Util.typeCheckConfig(NAME, config, DefaultType)\n    return config\n  }\n\n  _triggerBackdropTransition() {\n    if (this._config.backdrop === 'static') {\n      const hideEventPrevented = $.Event(Event.HIDE_PREVENTED)\n\n      $(this._element).trigger(hideEventPrevented)\n      if (hideEventPrevented.defaultPrevented) {\n        return\n      }\n\n      this._element.classList.add(ClassName.STATIC)\n\n      const modalTransitionDuration = Util.getTransitionDurationFromElement(this._element)\n\n...