I noticed that, after passing to Markdown, on the log page of a cache there is a link (How To Format) on the right side.
If I click on this link, a modal with a quick guide is opened. To close it there is a clear X button always on the right side and it works properly, but if I use "Esc" key, then I can't complete the log process since I can't scroll down anymore.
I know it's not a great bug and only a limited group of people use the key to close a modal (consider CS student for example :D ), but I think it could be annoying being forced to refresh the page and start logging the cache again.