Use Arg request, response
response~content_type = "text/plain"
a = .HTTP.Cookie~new("first", "plain")
a~path = "/"
response~addcookie(a)
-- The caller-encoded value: ";" and "+" must survive the round trip
-- (encode on output, read plain on input).
b = .HTTP.Cookie~new("second", "a%3Bb%2Bc")
b~path = "/"
response~addcookie(b)
Say "two cookies set"
