html5 Lightbox on mobile device

I am using html5lightbox on a website.  It works fine when the lightbox pops up on a laptop or desktop but a mobile device, the lightbox opens but it won't scroll.

If you go here: https://www.coherent (DOT) com/company/press_release/press-releases and scroll down half way and click on a few of the Press Releases, you will see them open on your mobile device but they won't scroll. It works on an emulator but not on an actual device.

Any suggestions?
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It is a commercial script have you tried to contact their support ?

This kind of script is no good for big text page like you have on your site.
What you can do is to have the content toggle so when clicking on a title the content appear under it and this is going to be responsive so  visible for mobile view.

Or offer to download the PDF for mobile view

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Jackie ManIT ManagerCommented:
Validate your html5 code first.
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