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
Now, please login to eMAM Director and try the play back