CORS errors on console when custom headers are sent with a request

[wesbillman]

If custom headers are sent from the verb request page for HTTP requests, we will get the following CORS errors.

Access to fetch at 'http://localhost:8891/get/name' from origin 'http://localhost:8892' 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. 
If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.