Fix uncaught web authorization failure

                sb.append(inputLine);

            }

            response = sb.toString();

        } catch (IOException e) {

            int responseCode;

            if (connection != null && (responseCode = connection.getResponseCode()) > 0) {

                if (responseCode == HttpURLConnection.HTTP_UNAUTHORIZED) {

                    // eg. IOException: Received authentication challenge is null

                    throw new WebAuthException(context.getString(R.string.e_auth_failure, responseCode));

                } else {

                    throw new IOException(context.getString(R.string.e_http_code, responseCode));

                }

            }

            throw e;

        } finally {

            if (connection != null) {

                connection.disconnect();