Here are the cookies you're using through CGIProxy:

Delete this cookie?	For server names ending in:	... and a path starting with:	Secure?	Cookie name	Value
	.imdb.com	/	Yes	international-seo
	.springer.com	/	No	idp_marker	cea7ae08-e9dc-4382-89c0-c8f08c3fece9
	.springer.com	/	Yes	idp_session	sVERSION_1328c49b4-c2ab-476f-9de1-1a2e5ec87d56
	.springer.com	/	No	idp_session_http	hVERSION_1c0225e70-9c2c-4031-b142-d4ed5366227d
	.springer.com	/	Yes	sim-inst-token	"1::1735438386551:e2a425c5"
	.springer.com	/	Yes	trackid	"nn7goonyxgvdvkrd5jbot2nft"
	.springer.com	/	No	user.uuid.v2	"2af67d33-bde6-49c1-95c3-fad8fc3c99d1"
	hatena.ne.jp	/	No	b	$1$yYYmkLg6$8v.AMU3aOX7d85iKiJmQS0

Authentication cookies: