External links, when wrapped around images, don't work. External links that are just text work. This is because the check for ev.target.href doesn't have an href because the element in question is the img. Any element wrapped in an a tag should still work. See screenshots below.

How to reproduce

1. Navigate to https://community.projectkamp.com/academy/support/merch
2. Tap on the 'Spikey Booshes Download' image (This is wrapped in an a)
3. Note that nothing happens
4. Tap on the alternative 'Download here' link and it works as expect

Added console.log to see what was being targetted:

See img vs a tag being returned from the console.log