If the Proxy playback is not working when we access eMAM director using Domain name or IP, please try the below steps:
1) Open IIS Manager.
2) Click on eMAM Folder virtual directory.
2) In Features View, double-click HTTP Response Headers.
3) On the HTTP Response Headers page, in the Actions pane, click Add.
4) Use the below info and click OK
Name: Access-Control-Allow-Origin
Value: *
Now, please login to eMAM Director and try the play back