Cookies are not extracted from response with the same domain as when set

[mlbiche]

I have just opened a discussion on starlette about an issue when deleting cookies on their TestClient but it seems strongly related to httpx2.Client : Kludex/starlette#3373.

Based on cookiejar behaviour, it seems reasonable to update httpx2.Cookies to ensure that a dotted domain is set:

• let set a domain in Cookies constructor when called with dict or list and ensure that this domain is dotted ;
• ensure that the domain set to Cookies.set is dotted (see _models.py#L1104):
  • to Client.base_url.host + ".local" if no domain is provided in Cookies.set
    

    httpx2/src/httpx2/httpx2/_models.py

    Line 1104 in 70fac53

    "domain": domain,

  • to domain + ".local" if the domain isn't dotted in Cookies.set