Ghoelian

But also not everyone with a .de domain lives in Germany. You can’t really accurately filter for this in a newsletter unless you know everyone’s location. So they just used the language, thinking that would catch most German citizens.

I don’t think it was a user-agent thing. The nav menu would just functionally not work on other browsers. Iirc it just showed every menu in the expanded state. They probably used some IE exclusive JavaScript methods without any polyfills.

At one of my previous employers, there was an intranet website where the nav menu would only work correctly in edge in IE compatibility mode. I’m not sure how they even managed this. I only used edge for that one website though, Firefox for everything else.