CORS Error when making request from front end


I am getting the following error when making a request to Square API from the client side:
Access to XMLHttpRequest at ‘’ from origin ‘http://localhost’ 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.

I was wondering will I have that Issue when I make that request not from localhost? In that case the request will be from an https URL.

:wave: API requests to Square should be coming from your server instead of the client side when calling our APIs. :slightly_smiling_face: