HTTPS SP and HTTP IDP

[jerome lebegue]

Hello,

I am running into a problem and I think I am missing something obvious
but can not get around it.

I am deploying Shibboleth, our IdP is accessed using HTTP (private
network, authentication delegated to another service accessed over
HTTPS). Everything works fine when we access an application behind a
SP in HTTP (once more private network).

Now we are adding another SP, this one accessed over public network,
so we want to access it over HTTPS.

The issue I run into is that, as soon as I point to the link
https://sp.example.com I am redirected to https://idp.internal.com and
not the http://idp.internal.com I am expecting ...

Does SP and IDP access schemes have to be the same ?

Thanks for your help