![]() ![]() Use environment variables to inject the right server host and port into your app.Enable CORS on your server ( here’s how to do it for Express).If the proxy option is not flexible enough for you, alternatively you can: The proxy option supports HTTP, HTTPS and WebSocket connections. Any unrecognized request without a text/html accept header will be redirected to the specified proxy. ![]() Keep in mind that proxy only has effect in development (with npm start), and it is up to you to ensure that URLs like /api/todos point to the right thing in production. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled. Origin ' is therefore not allowed access. Fetch API cannot load No 'Access-Control-Allow-Origin' header is present on the requested resource. ![]()
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