Posted in Very strange Rails app behaviour
Do you have a service worker stuck on your localhost? Try in another browser and see if you have the same issue.
Posted in Setup MacOS 10.14 Mojave Discussion
Could you elaborate about what part of this step you are having trouble understanding?
This may be of some help: https://help.github.com/en/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent