Access API behind an SSO portal (Banana Cake Pop)

[NicosGollan-cnic]

We have a staging system hidden behind an AWS ELB using a 3rd party SSO portal for access control (nothing to do with authenticating to the system itself). Accessing endpoints would require setting a rather unwieldy cookie. For the Altair GraphQL client, we usually simply grab that cookie from a browser session, paste it into a custom header, and that gets us through.

With Banana Cake Pop, however, that does not work. Adding the cookie as a custom header does not appear to send it along with requests; when using the development tools, all I see is are "provisional headers" for the actual requests to the GraphQL endpoint, and they get redirected to the SSO portal. I tried adding the Cookie header both in the connection settings and in the HTTP Headers section below the query editor, to no avail.

Is this a scenario I can somehow make work with BCP?