Steve, have you watched these videos on setting up SFDC SAML with Qlik Sense:
From the looks of it you have, but iframes are still not working. Iframes in salesforce require https. It's not clear from the doc above if you are trying to use https. Given that the iframes are failing, can you take a dev tools screenshot from chrome to display the console messages that may / may not be appearing?
Thanks Jeff. I've watched the videos, but if I recall, they are geared towards using SF as the identity provider. I'll look again if I'm mistaken.
Just to clarify, Qlik Sense iframes imbedded in Salesforce work perfectly for us on a desktop. But when on a mobile device, our netscaler looks for qliksense.mycmpny.com and appends /mobile/ so it's routed to our SAML virtual proxy. Our SAML virtual proxy works great for going to the hub on a mobile device. But the URL has to be perfect.
These iframe urls look something like this: https://mycmpny--devpoc.lightning.force.com/one/one.app#eyJjb21wb25lbnREZWYiOiJvbmU6YWxvaGFQYWdlIiwiYXR0cmlidXRlcyI6eyJ2…
I've never tried chrome on a mobile device for debugging. I'll give it a shot.