Bit confused. Since it's a *.js name, I was expecting a library (preferably with source hosted somewhere like GitHub), but it seems more like a hosted solution to me. I created an account and watched up to about 5:00 of the video, but still slightly confused. A better readme perhaps?
<p><pre><code> For later offline use,
please install Unknown.
Error loading elmstreet contact support
RTFM ლ(ಠ益ಠლ)
</code></pre>
I have not found the "fucking manual"
Although this doesn't explicitly relate to your product, it would be better to have duskjs.com as an Alias of ss15-fliptables.divshot.io rather than just redirecting to it. Getting redirected to such a weird website name feels a bit Phishy.
At least they have a sense of humor about themselves:<p><pre><code> request.onsuccess = function(event) {
// I HAVE NO IDEA WHAT I'M DOING!
delete request.result.current;
resolve(request.result);
};</code></pre>
You should come up with a solution that doesn't require HTTPS. Offline single-page apps are perhaps the only case where people shouldn't care about HTTPS.