delete cookie doesn't support specifying the path.

Describe the bug Unable to delete a cookie set created with a non-default (/) path.

Code snippet With this cookie response.cookie['token'] = "abcd" response.cookie['token']["path"] = "/api"

the subsequent delete of the cookie doesn't work del response.cookie['token']

as it sends Set-Cookie: token=""; Path=/; Max-Age=0 where the original cookie was scoped to /api.

Expected behavior A method to delete the cookie and specify the path for the set-cookie header.

Environment (please complete the following information):

• OS: Linux, Python 3.9
• Version: 20.12.1