I did some searching and never found an answer. StackOverflow's search algorithm helped me, now that I formulated my whole post. So I thought I might as well put this post up - perhaps someone will find their way here through my search words.
Problem
My app's text content is automatically translated in the browsers. In Chrome it's actually alright - nothing weird, doesn't translate people's names. In Microsoft Edge we have a problem though. Even words in the 'correct' language are translated, and so are names.
I can't rely on user's having the correct settings in their browsers.
How to disable automatic translation in Edge?