$&');\r\n input = input.replace(tableEndTagRegularExpression, \"$&
\");\r\n\r\n return input;\r\n },\r\n async startOfficeViewer() {\r\n let params = this.initialContent as OfficeOnlineParams;\r\n\r\n let viewerElement: HTMLElement = document.getElementById(\"officeonlineviewer\");\r\n\r\n if (viewerElement) {\r\n Shared.startOfficeOnline(params.AccessToken, params.AccessTokenTtl, params.ActionUrl, viewerElement);\r\n } else {\r\n if (this.documentProperties.show_in_office_online_viewer) {\r\n setTimeout(async () => this.startOfficeViewer(), 500);\r\n }\r\n }\r\n },\r\n parseMediaItems(input: string) {\r\n const mediaRegularExpression: RegExp = new RegExp(/