Fix gateway cookie handling #3744

Job	Run time
Test Lint	26s
Test Docs	22s
build (ubuntu-latest, 3.11)	20s
build (windows-latest, 3.9)	19s
build (windows-latest, 3.11)	19s
build (ubuntu-latest, 3.12)	19s
build (macos-latest, 3.12)	21s
Test Prereleases	14s
Test Examples	25s
build (macos-latest, 3.9)	1s
build (windows-latest, 3.12)	21s
build (ubuntu-latest, pypy-3.9)	29s
build (macos-latest, 3.11)	29s
build (macos-latest, 3.10)	14s
Make SDist	23s
integration_check_pypy	19s
build (ubuntu-latest, 3.9)	23s
integration_check (ubuntu-latest, 3.9)	20s
Test Minimum Versions	25s
integration_check (ubuntu-latest, 3.10)	23s
Check Links	21s
check_release	25s
integration_check (ubuntu-latest, 3.11)	32s
integration_check (ubuntu-latest, 3.12)	19s
Install from SDist and Test	1s
coverage	1s
tests_check	2s
	8m 33s

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