How can I keep SAML assertion in SP?

[Cantor, Scott]

> I tried to add the relevant configuration but I’m always receiving an empty
> HTTP_SHIB_ASSERTION_COUNT header.

Then your SP is not protecting that resource.

> In addition, I didn’t understand how to retrieve the assertion:

Your application code issues a request to the URL it tells you to use.

Whatever your goal is, rethink it. Anything you're doing with that assertion is likely either unnecessary or flat wrong.

-- Scott