Re:Never connect to ProtonMail using Chrome
by marcosdumay on Tuesday November 20, 2018 @10:09AM
(#18494298)
But they did support both languages, and support them to this day.
It's the sites that didn't adopt XHTML. Everybody on the infrastructure side loved it.
Of course this would have required browser vendors to support two languages at the same time for a sufficiently long transition period, which was apparently too much to demand.