Cors issue due to siteminder agent sso

My angular application and node js APIs are deployed on a server where SSO enabled on server.
Both api code and angular code are present on same server inspite of that we are getting cors issue when trying to consume node api from angular application.

Error below:
Failed to load https://iwa.testcompany.com/iwa/winauthchecker.aspx?apptype=wireline&CHALLENGE=&SMAGENTNAME=$SM$%2fEKIeDbYLIMR01cs0kxVQ9nXLIhXu2gMjpdC8PeQc6wc8jlcGIcuF5uIlal07fmj&TARGET=$SM$https%3a%2f%2fmyvzcloud%2everizon%2ecom%2fapps%2fASTProd%2fASTAPI%2fSuppression%2fCASPER%2f0%2e9979255049237719: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘https://myvzcloud.com‘ is therefore not allowed access.

Source: AngularJS