I need to enable CORS in Reporting Services so that I can download reports from my web application using ajax. What I\'ve learned so far is, that SSRS is no longer using II
For SSRS 2017 (Restful APIs) Connect to the reporting server using SSMS, and make sure you set the service type to Reporting Services on the connection dialogue. Also, if you using a different method of authentication, then set that and enter your username/password
Once connected, on the head node "server" right click -> properties -> advanced And you will find all CORS properties, set what you need
https://docs.microsoft.com/en-us/sql/reporting-services/tools/server-properties-advanced-page-reporting-services?view=sql-server-2017