message: fix: error handling for webpack proxy
diff: @@ -129,6 +129,10 @@ function processHTML(proxyResponse, response) {
  .on('data', data => {
  body = Buffer.concat([body, data]);
  })
  + .on('error', error => {
  + console.error(error);
  + response.end(`Error fetching proxied request: ${error.message}`);
  + })
  .on('end', () => {
  response.end(toDevHTML(body.toString()));
  });
  