How to enable CORS for IE 11 -- Process CORS request Assertion is not working on APIM gateway

Document ID : KB000072498
Last Modified Date : 12/07/2018
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The IE11 aborted the cors preflight request, and IE developer console shows error, 
XMLHttpRequest: Network Error 0x80070005, Access is denied 

If run tcpdump on gateway, the tcpdump file shows that the cors preflight request cannot reach gateway as it is aborted/blocked by IE11
Root causes:
IE11 disable CORS by default, and may not trust the domain.
  1. Add all the domain in the Trusted sites zone or Local intranet zone
  2. Enable CORS for the security zone.
IE security settings