Use case: wipe data from test installation in order to start over quickly...
1. drop/empty the db
2. delete ./files and its contents
3. delete settings.php
4. visit site to re-start the installation process
As it is now, the installer complains about a missing settings.php:

So I had to extract a fresh copy of the file in order to carry on. Can we ship a default-settings.php file and have the installer create a copy of it instead of complaining in this case?
Recent comments
OMG thank u... you are amazing.
Hiding Blocks for Small Screens
I use a similar module (Tocbot) which uses the same library, but the implementation is different. This is what I use to target the block: @media (max-width: 47.99em) { .js-toc-block.is-...
Hiding Blocks for Small Screens
So the implication is that another module is causing the trouble. Now for the slow process of elimination... Sounds plausible. And good luck with digging...
How to troubleshoot interactive image cropping modules?