webpack-dev-server 返回 504 而后端返回 204

Question

Here is an error text (app crashes at all 204 reponses):

[HPM] Error occurred while trying to proxy request /rest/profiles/change-password from site.loc:3005 to https://site.loc (ECONNRESET) (https://nodejs.org/api/errors.html#errors_common_system_errors)

Debugged backend response. It returns 204 status code with empty body (data = null). If I build an app everything is working fine. One more moment: it doesn't occur at other developer's MAC OS.

My webpack devServer config:

  devServer: {
    contentBase: PATHS.dist,
    host: appDomain,
    proxy: {
      '/rest': {
        target: appUrl,
        secure: false,
        changeOrigin: true
      },
    ...
 }

My enviroment:

Windows 10 Pro x64
node version: v12.18.4
webpack-dev-server: "^3.11.0",

Please, help!

Answer 1

I spent about 3 days on that error, myabe this answer could help anyone... I didn't figure out why this error occur, good people helped me with this code:

    proxy: {
      '/rest': {
        target: appUrl,
        secure: false,
        changeOrigin: true,
        onProxyRes: function (proxyRes, req, res) {
          console.log(proxyRes.statusCode);
        },
        onError: function (err, req, res) {
          console.log(`req.body: ${req.body}`); // here it returned undefined
          console.log(`err.code: ${err.code}`);
          if (err.code === 'ECONNRESET') {
            res.writeHead(204, {'Content-Type': 'application/json'});
            res.end();
          }
        },
      },

Previously tried to do this using webpack-dev-server bypass method, axios interceptors, but with no success.