Access-Control-Allow-Origin Issue with rocket chat

Hi All,

I am facing an issue related to origin on my server, I have installed rocket chat server on my server with port 3000. Here are details.

The ‘Access-Control-Allow-Origin’ header has a value. I am not able to post links here due to limit for links by community.

1: Rocket chat installed:

2: My application running on:

And error is following, I have already setup the origin policy on server.

In other hand the same thing is working on Local environment.

Can any one help me in this please its urgent for me.

I am trying to integrate I frame authentication with rocket chat with my application, and I am referring this document.