I am facing an issue on IE 11, Edge where the browser sends more than 1 request header in Access-Control-Allow-Headers with Authorization, Content-Type, Origin. I have added these headers in the Process CORS request, -- accepted headers. When the browser receives the response from CA, the Access-Control-Allow-Headers headers are received on separate lines and not as comma separated values. therefore the browser complains that Content-Type header was not received. Chrome works with such header values but not IE.
I am attaching one link that explains more on less the same issue.