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Minor docs change to highlight dev proxy behaviour #3075

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Sep 29, 2017
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Minor docs change to highlight dev proxy behaviour #3075

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2 changes: 1 addition & 1 deletion packages/react-scripts/template/README.md
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Expand Up @@ -983,7 +983,7 @@ To tell the development server to proxy any unknown requests to your API server
"proxy": "http://localhost:4000",
```

This way, when you `fetch('/api/todos')` in development, the development server will recognize that it’s not a static asset, and will proxy your request to `http://localhost:4000/api/todos` as a fallback. The development server will only attempt to send requests without a `text/html` accept header to the proxy.
This way, when you `fetch('/api/todos')` in development, the development server will recognize that it’s not a static asset, and will proxy your request to `http://localhost:4000/api/todos` as a fallback. The development server will **only** attempt to send requests without `text/html` in its `Accept` header to the proxy.

Conveniently, this avoids [CORS issues](http://stackoverflow.com/questions/21854516/understanding-ajax-cors-and-security-considerations) and error messages like this in development:

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