attachToScrollParents(scrollParent, event, callback, scrollParents) {\n  const isBody = scrollParent.nodeName === 'BODY';\n  const target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;\n  target.addEventListener(event, callback, { passive: true });\n\n  if (!isBody) {\n    attachToScrollParents(\n      getScrollParent(target.parentNode),\n      event,\n      callback,\n      scrollParents\n    );\n  }\n  scrollParents.push(target);\n}\n\n/**\n * Setup needed event listeners used to...

    /** The key of the message: Started a process to delete the document from index. */
    public static final String SUCCESS_delete_doc_from_index = "{success.delete_doc_from_index}";

    /** The key of the message: Deleted session data. */
    public static final String SUCCESS_crawling_info_delete_all = "{success.crawling_info_delete_all}";

    /** The key of the message: Started a crawl process. */

    /** The key of the message: Session ID */
    public static final String LABELS_crawling_info_session_id_search = "{labels.crawling_info_session_id_search}";

    /** The key of the message: Session ID */
    public static final String LABELS_crawling_info_session_id = "{labels.crawling_info_session_id}";

    /** The key of the message: Created */