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
	.github.com	/	Yes	_octo	GH1.1.1488945096.1731419682
	.github.com	/	Yes	logged_in	no
	.slideshare.net	/	No	browser_id	8c1113dd-8311-4464-bbb0-b371df676116
	github.com	/	Yes	_gh_sess	HjV1TRuM0tmFmuvBPn0AuxVcaPOTsnNl3ZGw6l2uOTr7SSLR2VG9oF7B7%2F2vya0o9LP8L2hQT%2B4sTf9KtgLJArxtMPdmAZYLvapgasp%2B1UmlG0fGCAKmhLynHmfU%2BsFUVCqmUNkn4iD7tUqpqXCVz7i2%2BMZNN68ZSK%2ByYZYhu4kXu5IcsKgJfgHAu1qhTwjmuGCGwhR3rLK2RQhUMW9EIlDOFt5AZlFLSG8MfpdpxyPV7atkoFiTW4Be3fDoTeFOzSF2IZoIRM8IIjbWNV16xQ%3D%3D--dRFlEwDMASaNA0aq--0cD6Gaflv2bwGFhMBVic%2Bg%3D%3D
	lesmakers.fr	/	No	PHPSESSID	hp9kpprgapmi3pkt0ma1ovvu66
	www.thriftbooks.com	/	No	ASP.NET_SessionId	sdtxyy2mfdmc2ffjhrdgbhvv
	www.thriftbooks.com	/	No	CartIdentifier	29d7f587d1284174a9b1c27e171cdae0
	www.thriftbooks.com	/	No	ShowEmailSignupModal	1
	www.thriftbooks.com	/	Yes	TIdent	302167e81cb343b188307ce2e5231414
	www.thriftbooks.com	/	No	UserDataIdentifier	7827c0372a8f49728bc484a7a1c1be76
	www.thriftbooks.com	/	No	snow_session	2f91b723-cc48-4aba-9325-9e919da5ca99

Authentication cookies: