CORS issue when accessing authorize endpoint from localhost

Question

Hi there,I am trying to access the /authorize endpoint from locahost and getting CORS issue despite setting all the required CORS headers in my app code. The same endpoint works pretty well in postman and had no issues with CORS.&nbsp;I have reached out to the API support but did not get the relevant support from them. Any pointers to resolve the issue is much appreciated.&nbsp;The actual error is :Access to fetch at 'https://secure.myob.com/oauth2/v1/authorize/' from origin 'http://localhost:3000' 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.&nbsp;&nbsp;

will_h · Answer

Hi&nbsp;Heath_Carson&nbsp;,Please note: I'm not part of MYOB's API support teams, I'm responding as an interested party, not as an authoritative MYOB source.CORS is usually related to browsers, there's some discussion here:&nbsp;https://academind.com/tutorials/cross-site-resource-sharing-corsPostman doesn't care about CORS when you're using the desktop app version, you may need to either change some settings in your browser, or configure some kind of middle-service to handle the responses and provide back CORS compliant responses to your consuming application.
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Hope this gives a hint in the right direction, I won't be any help for followup questions.

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CORS issue when accessing authorize endpoint from localhost

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