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90I am trying to call an API from Finance and Operations in CRM Dynamics 365 but i am getting error :
"Access to XMLHttpRequest at 'abc.dynamics.com/api/services/SalesOrderTest' from origin 'xyz.crm.dynamics.com' 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 tried to set these headers but still getting the error
xhr.setRequestHeader("Access-Control-Allow-Origin","*")
xhr.setRequestHeader("Access-Control-Allow-Credentials", "true");
xhr.setRequestHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
xhr.setRequestHeader("Access-Control-Allow-Headers", "*");
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