CORS error in

Copper Contributor

I'm trying to use GraphAPI to fetch email data, however I'm running into this error:
Access to fetch at '' (redirected from ''D7')') from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

Does anybody know a work around to get the data I'm looking for? 

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