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}): HttpHeaders {\n return new HttpHeaders(headers);\n }\n\n protected createQueryMap(search: string): Map<string, string[]> {\n const map = new Map<string, string[]>();\n if (search) {\n const params = new HttpParams({fromString: search});\n params.keys().forEach(p => map.set(p, params.getAll(p)));\n }\n return map;\n }\n\n protected createResponse$fromResponseOptions$(resOptions$: Observable<ResponseOptions>): Observable<HttpResponse<any>> {\n return resOptions$.pipe(map((opts: HttpResponseBase) => new HttpResponse<any>(opts)));\n }\n\n protected createPassThruBackend() {\n try {\n return new HttpXhrBackend(this.xhrFactory);\n } catch (ex) {\n ex.message = 'Cannot create passThru404 backend; ' + (ex.message || '');\n throw ex;\n }\n }\n}\n"]} |