message: Fix logfile page
diff: @@ -9,13 +9,13 @@ export class LogfileService {
  // get the Registry's logfile
  getLogfile(): Observable<string> {
  - return this.http.get<string>('management/logfile');
  + return this.http.get('management/logfile', { responseType: 'text' });
  }
  // get the instance's logfile
  getInstanceLogfile(instance: Route | undefined): Observable<string> {
  if (instance && instance.prefix && instance.prefix.length > 0) {
  - return this.http.get<string>(instance.prefix + '/management/logfile');
  + return this.http.get(instance.prefix + '/management/logfile', { responseType: 'text' });
  }
  return this.getLogfile();
  }
  