I am opening our external application pages in an iFrame in different VF pages. I was able to access these pages without any issues until latest Google chrome update with sameSite attribute. I am using authentication by token which is passing through iFrame URL. I am able to open the page in fireFox browser. But it is loading login page while using Chrome. I tried to open visualforce page with an extension "sameSite=none" with no positive result. I can see below warning in the console log.
A cookie associated with a cross-site resource at was set without the
SameSiteattribute. It has been blocked, as Chrome now only delivers cookies with cross-site requests if they are set with
I tried disabling sameSite flag on chrome://flags/ and VF page with iFrame. When that flag is disabled I am able to open the page without any issues. There are no warnings in console panel and no authentication issue. So do I need to update salesforce VFpage code or Apex or anything else from my end or Do I need to inform our application team to check with sameSite attribute from their end?? Please advice.