How to fix Node.js Hostname/IP doesn’t match certificate’s altnames?

To fix Node.js Hostname/IP doesn’t match certificate’s altnames, we proxy to the target URL.

For instance, we write

const proxy = httpProxy.createProxyServer();

proxy.web(req, res, {
  changeOrigin: true,
  target: "https://example.com:3000",
});

to call proxy.web to proxy requests to https://example.com:3000.

If we use HTTPS, we should include the key and certificate by writing

httpProxy
  .createServer({
    ssl: {
      key: fs.readFileSync("valid-ssl-key.pem", "utf8"),
      cert: fs.readFileSync("valid-ssl-cert.pem", "utf8"),
    },
    target: "https://example.com:3000",
    secure: true,
  })
  .listen(443);

to call add call createServer with the key and cert set.

And we proxy requests to https://example.com:3000.