This is a WSGI Middleware that given a configuration dictionary it will look
for the cookies_samesite_compat field that should hold a list of two-element
tuples that define two cookie names. The first name is the primary cookie name
and the second is the fallback cookie name. The primary cookie should be set by
the application with all needed attributes set, including the SameSite
attribute.
On creating the response, the fallback cookie is created based on the primary
cookie, but with the its own name and without the SameSite attributes. On
processing a request, if the primary cookie is not there, the fallback cookie
is looked up and used to create the primary cookie, even if the SameSite
attribute will not be set, so that the appication can only care about one
cookie name.
from cookies_samesite_compat import CookiesSameSiteCompatMiddleware
config = get_config()
response = CookiesSameSiteCompatMiddleware(
WsgiApplication(config), config
)
return response