error(oJqXHR, sTextStatus, oErrorThrown) {
				LrepConnector._reportError(oJqXHR, sTextStatus, oErrorThrown);
				fnReject(oErrorThrown);
			}
Sends a GET content request to the back end.

@param {string} sUrl - Request URL
@param {function} fnResolve - Callback function if request was resolved
@param {function} fnReject - Callback function if request was rejected
@param {boolean} bRequestAsText - Sends ajax request with data type as plain text
@private