CP8 with HTML5 Objects Skips Slides on iOS

I converted some PDFs to HTML flipbooks. I loaded those to a web server and linked to them in a Captivate 8 responsive presentation.

The "course" looks great - except for one thing.

On iOS devices, the browser skips the intro slide (even though there's a button on it) and goes straight to the HTML5 page and ignores the "course" completely.  The learner has to press the "play" button to start the course as is traditional in mobile. That button is presented in the course shell, seemingly at the outset of the course. The learner can press the large play button in the middle of the page (which is an iOS thing) or the one on the playbar, but once that happens it just blows through the course straight to the HTML. This happens in both Safari and Chrome in iOS. This does not happen in any browser on a desktop, nor does it happen in Android.

In all cases on mobile, once the HTML5 content is launched, you can't just return to the course content (which also seems odd).

I am just wondering if there is a way for me to force it to let my learners interact with the slides, and / or get back to the content.

Note that I have tried having it launch a new window, and it crashes when I do so.

Thanks,

Laura