Issue description:

Pack Comparer doesn't show anything for any modpack

What happens:

It's blank with 0 mods

What you expected to happen:

Shows comparison between modpacks

Steps to reproduce:

1. Go to https://refinedstorage.raoulvdberge.com/packcomparer.php
2. Use preset
3. Click compare
4. Nothing happens

Duplicate. Already posted here: https://github.com/raoulvdberge/refinedstorage-website/issues/38