Intenet Explorer Throwing "Unable to communicate with parent window" error while using Dropbox Chooser

Thanks for your reply.

I have check with the following cases and listed the results :

• can you let me know if this does or doesn't happen for you on https://www.dropbox.com/developers/dropins/chooser/js?

With IE 11 its working fine but with the IE 10 its not working.
Anyway, one way this can happen is if window.opener is null. Can you open the console on the Chooser popup itself when in the broken state and see what window.opener returns?
window,opener is returning null
- Also, is your site telling IE to use a particular compatibility mode? This can cause issues if the host page (your site) and the Chooser (which is hosted on our site, which tells IE to use the latest mode) are in different mode

We have this meta tag added <meta http-equiv="X-UA-Compatible" content="IE=edge;" /> and manifest="ie11WebSite.appcache" added in the html tag
- Finally, another thing that can sometimes cause issues is IE's security settings (in the Security tab of Internet Options). Have you made any changes there? Is "Protected Mode" enabled?

We have tried with both Protected Mode enabled and disabled. We faced the same issue.
Do we need to add anything in the html to fix this ?