End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

CGI::Cookie#domain=

domain=(str)

# File tmp/rubies/ruby-3.0.5/lib/cgi/cookie.rb, line 126
def domain=(str)
  if str and ((str = str.b).bytesize > 255 or !DOMAIN_VALUE_RE.match?(str))
    raise ArgumentError, "invalid domain: #{str.dump}"
  end
  @domain = str
end

Set domain for which this cookie applies

See also .parse #httponly= .new #inspect also in 3.4 · 3.3 · 3.2 · 3.1

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