Gallery not working on iOS devices

I have been able to replicate and fix this issue in my local environment and on my iOS device.

The problem was that, following the instructions from both the module's page ( https://www.drupal.org/project/juicebox → ) and the documentation ( https://www.drupal.org/node/2000300 → ) I, mistakenly, only copied the classic directory and juicebox.js into /libraries/juicebox, but not full.html.

Adding that missing file (full.html) made it work. My libraries folder now looks like the following:

|-- libraries
|   |-- juicebox
|   |   |-- classic
|   |   |   |-- fonts
|   |   |   |-- img
|   |   |   |-- theme.css
|   |   |-- full.html
|   |   |-- juicebox.js