Purchased Hoard of the Dragon Queen -- no book?

I thought the $19.99 purchase would unlock a digital version of the adventure book, like the core books... but all I get when I go to the adventure is indicators that items and such are unlocked. Can someone steer me in the right direction?

The thing that seems to fix it is clearing your browsers cache, or trying a different browser.

I had the same issue with Storm King's Thunder, and Curse of Strahd

So this is weird -- I SEE the content on my iPhone, but NOT via Safari on my Mac. I'm running Version 10.1.2 (12603.3.8)

OS version: 10.12.6 (16G29)

That did it. Thanks NothAU!