Keeping dcc.Intervals firing while in background

See and answer here:

Instead of butchering my original post, I just went asking on StackOverflow because of the “four links / post” limitation for new members. You may consider reviewing your submission system for newbies. I understand that limiting to 4 links in a new post has some reasons (prevent against mass advertising or whatever) however it is extremely frustrating when one tries to write a somehow-documented question. Also it seems that URL in code snippets were also interpreted as links.