我只是自己修复了,需要在RP上启用persistentCookiesOnPassiveRedirects
在您的web.config中,您需要:
<microsoft.identityModel>
<federatedAuthentication>
<wsFederation
persistentCookiesOnPassiveRedirects="true" />
<cookieHandler
persistentSessionLifetime="60.0:0:0" />
</federatedAuthentication>
</microsoft.identityModel>