We are trying to connect Sharepoint online instance using SAML Authentication. We are trying to create site using Rest API. As we are using SAML authentication , we need to use /contextinfo to obtain request digest. This was working absolutely fine , but not sure why it is throwing error 403 now.
Following is the request sample :
URL: https://yourdomain.sharepoint.com/_api/contextinfo, headers: { Cookie: rtFa=xxxx;FedAuth=xxx; Origin: yourdomain.sharepoint.com }
-2147024891, System.UnauthorizedAccessExceptionAccess denied. You do not have permission to perform this action or access this resource.
