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React.js cdn link setup error

I followed along on the installation for setting up react using the cdn links but I get errors I checked the link it was the crossorigin but when I took it out the error went away but the cdn doesnt work how do I fix the problem

here is the link to the video I was referring to

1 Answer

Just lookup react cdn on the react docs these are the cdns to include in your html file. Also make sure you have the crossorigin Attribute.

React team also recommend to verify that the CDN you are using sets the

Access-Control-Allow-Origin: *

in the network tab in browser dev tools.

<!-- this should work -->
<script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>