Your lightbox is fine on my iPhone, but can anyone tell me what's going on with the DEMO link on the Github page? I can't get it to open with a tap from either

Your lightbox is fine on my iPhone, but can anyone tell me what's going on with the DEMO link on the Github page? I can't get it to open with a tap from either Safari or Chrome on my iPhone. Do you think Modernizr is doing something weird with that hyperlink on mobile?