Function startProxy

test/e2e/web-socket-server-url.test.js:37–50

(callback)

      await server.start();

      function startProxy(callback) {
        const app = express();
        app.use(
          "/",
          createProxyMiddleware({
            target: `http://${devServerHost}:${devServerPort}`,
            ws: true,
            changeOrigin: true,
            logLevel: "warn",
          }),
        );

        return app.listen(proxyPort, proxyHost, callback);
      }

      const proxy = await new Promise((resolve) => {
        const proxyCreated = startProxy(() => {