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    onBeforeSetupMiddleware(devServer) {
      // Keep `evalSourceMapMiddleware`
      // middlewares before `redirectServedPath` otherwise will not have any effect
      // This lets us fetch source contents from webpack for the error overlay
      devServer.app.use(evalSourceMapMiddleware(devServer));

      if (fs.existsSync(paths.proxySetup)) {
        // This registers user provided middleware for proxy reasons
        require(paths.proxySetup)(devServer.app);
      }
    },
    onAfterSetupMiddleware(devServer) {
      // Redirect to `PUBLIC_URL` or `homepage` from `package.json` if url not match
      devServer.app.use(redirectServedPath(paths.publicUrlOrPath));

      // This service worker file is effectively a 'no-op' that will reset any
      // previous service worker registered for the same host:port combination.
      // We do this in development to avoid hitting the production cache if
      // it used the same host and port.
      // https://github.com/facebook/create-react-app/issues/2272#issuecomment-302832432
      devServer.app.use(noopServiceWorkerMiddleware(paths.publicUrlOrPath));
    },

    setupMiddlewares: (middlewares, devServer) => {
      // Keep `evalSourceMapMiddleware`
      // middlewares before `redirectServedPath` otherwise will not have any effect
      // This lets us fetch source contents from webpack for the error overlay
      middlewares.unshift(evalSourceMapMiddleware(devServer));
      if (fs.existsSync(paths.proxySetup)) {
        // This registers user provided middleware for proxy reasons
        require(paths.proxySetup)(devServer.app);
      }
      middlewares.push(
        // Redirect to `PUBLIC_URL` or `homepage` from `package.json` if url not match
        redirectServedPath(paths.publicUrlOrPath),
        // This service worker file is effectively a 'no-op' that will reset any
        // previous service worker registered for the same host:port combination.
        // We do this in development to avoid hitting the production cache if
        // it used the same host and port.
        // https://github.com/facebook/create-react-app/issues/2272#issuecomment-302832432
        noopServiceWorkerMiddleware(paths.publicUrlOrPath)
      );
      return middlewares;
    },