devServer: {
 proxy: {
 // string shorthand: http://localhost:5173/foo -> http://localhost:4567/foo
 '/foo': 'http://localhost:4567',
 // with options: http://localhost:5173/api/bar-> http://jsonplaceholder.typicode.com/bar
 '/api': {
 target: 'http://jsonplaceholder.typicode.com',
 changeOrigin: true,
 rewrite: (path) => path.replace(/^\/api/, ''),
 },
 // with RegExp: http://localhost:5173/fallback/ -> http://jsonplaceholder.typicode.com/
 '^/fallback/.*': {
 target: 'http://jsonplaceholder.typicode.com',
 changeOrigin: true,
 rewrite: (path) => path.replace(/^\/fallback/, ''),
 },
 // Using the proxy instance
 '/api': {
 target: 'http://jsonplaceholder.typicode.com',
 changeOrigin: true,
 configure: (proxy, options) => {
 // proxy will be an instance of 'http-proxy'
 },
 },
 // Proxying websockets or socket.io: ws://localhost:5173/socket.io -> ws://localhost:5174/socket.io
 // Exercise caution using `rewriteWsOrigin` as it can leave the proxying open to CSRF attacks.
 '/socket.io': {
 target: 'ws://localhost:5174',
 ws: true,
 rewriteWsOrigin: true,
 },
 },
}