How to enable cookie while loading website using iframe?

hello my friends

i want to make chat system for my game so i didn’t find any useful tutorial to setup chat inside gdevelop so i make an chat website and i load it in a scene of my game using i-Frame extension , its load website and everything is fine until i want user log in as guest or a member , because website use cookie and this extension cant load it , so loading chat page is not possible and scene stuck

i checked console its show me 403 error mean is access denied (because game dont save cookie and website wont let game show up chat page)

in all of browsers , mobiles and pcs this website load without any problem

so i want to know : how to enable cookie for my game chat scene?
please someone guide me thanks in advance