Your API works, but your frontend doesn't?

Your API works, but your frontend doesn't? Before blaming the backend, open your browser’s Network tab. Here’s a simple example. Your API works perfectly when you test: GET https://api.example.com/users But your frontend is showing: 404 Not Found Open DevTools → Network → click the failed request. You might discover that your frontend is actually sending: GET https://api.example.com/user See the problem? The backend expects /users, but the frontend is requesting /user. Change the URL, refresh, and the request works. So when your frontend says an API is broken, don't guess. Check the Request URL → Status Code → Response first. Sometimes the backend isn't the problem. Your frontend might simply be asking for the wrong thing.