External chat widget not working/login issue in chrome

Hi,

My external chat plugin is not working in chrome, as It doesn't pickup the login info and keep asking for login in the application even when I have logged in servicedesk plus, maybe the issue is
with its cookie, I have an external website where I have used the script to integrate chat, my servicedesk plus is installed on another domain, so I have added access-control-allow header
its working fine in firefox but in chrome its always asking for login info and not getting logged in.
Probably the reason what I have figured out is an update in cookie handling of chrome that suggest that if samesite=none is not defined then it takes it as lax. thats why the login cookies generated by
service desk plus is not being picked by chrome as it blocks them, either these should be secure or samesite=none. Please help me out I am stuck and its not working for me its urgent.