Right now I managed to reproduce another issue that has affected my device for some time and it might be related:
- Close all the tabs in Mobile Safari
- Close Safari and wait a few seconds
- Make sure the Google+ app is installed
- Open Safari
- Go to reddit.com/domain/plus.google.com
- Click on any of the links (e.g. Material Linux distro is now Quantum OS...)
- When the page loads, it is blank until it is scrolled a bit