I have a simple application in react.js + vite. I have the api set up on “http://localhost:5000”, and the vite app on “http://localhost:5173”.
The proxy in vite is ignored and I don’t know how to fix it.

vite.config.js:

export default defineConfig({
  plugins: [react()],
  // mode: Config.WEBSITE.FRONTEND.production ? 'production' : 'development',
  server: {
    server: {
      proxy: {
        '/api': {
          target: 'http://localhost:5000/',
          changeOrigin: true,
          secure: false,
          rewrite: (path) => path.replace(/^/api/, "")
        }
      }
    }
  }
})

app.js (api):

app.use(cors(cors: { - use to no have problem with cors on react.js side
    origin: `http://localhost:5173`,
    methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
    optionsSuccessStatus: 200, // dla starszych przeglądarek
    credentials: true
}));
app.use((req, res, next) => {
    const customHeader = req.headers['x-auth-token'];
    if (customHeader !== "test") {
            return res.status(403).send('Forbidden');
    }
    next();
});

app.get('/', (req, res) => {
    res.json({ text: "API WORK" });
});

Home.jsx (home page react element with api request in axios):

useEffect(() => {
        axios.get('/api', {
            headers: {
                "Content-Type": "application/json",
                'x-auth-token': 'test'
            }
        })
        .then(response => {
            console.log(response.data);
        })
        .catch(error => {
            console.error('There has been a problem with your fetch operation:', error);
        });
    }, []);

When it executes the request, the proxy does not redirect to the api address, and the zwrtony response in the request I have is like this:
website console log

When I use in axios url “http://localhost:5000/” instead of “/api”, everything works normally and retrieves the get request from the api. So why is the proxy not working?

Thank you for any help.

I tried changing ports, vite.config.js of course nothing helped. I searched the whole internet about vite proxy problem and so far I am not sure what is problem.