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I’m running a test sandbox locally. Anyone know an easy way to make my sandbox RPC service add a Access-Control-Allow-Origin: * header so that I can avoid CORS errors while testing locally?

rpc.tzbeta.net seems to add the header, so I can access it from my web app just fine, but it isn’t currently running the latest proposal code, so I can’t use it for testing.

One option for testing would be a proxy, but if there is a way to tell the RPC service to do it for me, that would be ideal.

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You need to start the node with these options: --cors-header='content-type' --cors-origin='*'.

Once you’ve started the node with these options the response headers should allow a JavaScript application to make RPC calls to a Tezos node.

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