Extracting image URL from a Javascript viewer

How to?
#1

Hi,

I'm trying to extract product image URLs from the Boots site, but images are loaded via a JS image viewer.

Images are downloadable via right click > save image as, but no reference to the image URL in the page source.

This page is an example: Boots Max Strength Ibuprofen Gel - 40g - Boots

Is there any way to do this with Webscraper?

Thanks,
Jamie