fix: improve error handling for WebsocketServer (#5038)

Author: snitin315

lib/servers/WebsocketServer.js

@@ -95,6 +95,17 @@ module.exports = class WebsocketServer extends BaseServer {
         client.on("close", () => {
           this.clients.splice(this.clients.indexOf(client), 1);
         });
+
+        // TODO: add a test case for this - https://github.com/webpack/webpack-dev-server/issues/5018
+        client.on(
+          "error",
+          /**
+           * @param {Error} err
+           */
+          (err) => {
+            this.server.logger.error(err.message);
+          },
+        );
       },
     );