Hi,

I'm surprised I haven't seen this question come up. We are trying to setup PayPal PayFlow Link Hosted Payments with our cookie settings defined as SameSite=Lax. While we can access the PayPal page to enter in the credit card data, the RETURN_URL callback to our site does not re-initiate the previous web session since browser control was handed off to PayPal. The SameSite=Lax cookie setting prevents the existing web session from being loaded. We have tried passing the JSESSIONID to PayPal USER1 custom field and trying to add a cookie with this value, but Tomcat has already created a new cookie and does not use the newly created cookie. We have also tried overriding the cookie to SameSite=None in the response servlet and Apache 2.4 mod_headers httpd-ssl.conf, but it does not override the original cookie settings.

Anyone have any advice on how to resolve this issue?