Translating the page is pretty nice but when toggling Reader View the translation goes away and cannot be re-enabled from there. Please add the ability to translate the page while in reader view!
When I visited https://blog.duolingo.com/duolingo-101-how-to-learn-a-language-on-duolingo/ and selected their option to view the instructions in Spanish on the website, I then turned reading view on to minimize the ads/images. However, I was disappointed the reading pane brought the English version up. It would be more user-friendly to offer a translate on the reading pane. Particularly if the page I was viewing was already in Spanish, Reading Pane should pick up on that and display it in that language, or offer the option to translate the English version to a different language.