The Use Proxy approach refers to routing requests through an intermediate proxy layer directly from client-side code. This pattern is now considered deprecated in most modern web architectures due to security, performance, and maintainability concerns.
Earlier implementations often relied on directly calling a proxy URL to bypass CORS or security restrictions. This approach is deprecated because it creates tight coupling between frontend and infrastructure.
// Deprecated example: client-side proxy usage
fetch("https://proxy.example.com/api/data")
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error(error));
The browser sends requests through a third-party proxy. While it may work, it introduces security risks and is no longer recommended.
Simulate a request below to understand the security implications.
// Modern approach: call your own backend instead of a proxy
fetch("/api/data")
.then(res => res.json())
.then(result => {
console.log("Secure data:", result);
});