Call outsite javascript from plugin and vice versa

Dear all.

I have my own websocket for my game (not socket.io) and it's role is connection between c2runtime and .NET server. It's working well.

Actually, I want to build a chat room outside a c2runtime and looking for the way to call outside javascript and vice versa to complete my project.

It's mean text from my websocket can be append in <div> outside of canvas c2runtime and message from input can be sent via my web socket in my Plugin.

Have you guys have any idea to help me...???...

Thank in Advance

I intend to make a solution by using Call JS plugin and sessionStoraage to make a job be simplify...

Have you guys have any suggestion..???

Thank in Advance