alt Hacker News> many of these are in fact not a standard according to W3C and should not be implemented in any browser until it is.
That's not exactly how standards work. A browser (or anyone) comes up with a spec, a browser can ship it (to test the waters in an origin-trial, to gain traction if they believe in it), and the standard (often) comes after the fact:
"Working Groups don't gate what browsers ship, nor do they define what's useful or worthy. [...] In practice, they are thoughtful historians of recent design expeditions, critiquing, tweaking, then spreading the good news of proposals that already work through Web Standards ratified years after features first ship, serving to licence designs liberally to increase their spread."
https://infrequently.org/2025/09/standards-and-the-fall-of-i...
> A browser (or anyone) comes up with a spec, a browser can ship it (to test the waters in an origin-trial, to gain traction if they believe in it), and the standard (often) comes after the fact:
1. Google often doesn't bother even with a spec. Or it creates a semblance of a spec, throws it up on a googler's Github account, ships it and advertises it as "emergin standard" on web.dev
I mean, the status of many (if not most) of the APIs that these sites push are literally "napkin scribble, not on any standards track".
2. Google pushes a lot of APIs quickly into production even if there's a very explicit open objection from other browser vendors (any objections are routinely ignored: from general objections to the shape of APIs to whether it can even be implemented outside Chrome).
3. I wouldn't really quote Alex Russel on anything related to standards, as he is responsible (directly or indirectly) for quite a few of those because of his work on Web Components. E.g. Constructable Stylesheets were shipped in Chrome because Google's own lit project needed them. They shipped it in production when the design contained a trivially triggered race condition, it was called out, and Google completely ignored it because "users want it" or something.
4. Browser vendors quite literally agreed not push incompatible only-exists-in-one-browser shit after the browser wars. The whole standards process is designed to minimize this. Well, Chrome is the dominant browser, so of course they shit all over the process, and quite a few people cheer them for that.
Internet Explorer in the 2000s: shits out a bunch of own non-standard crap, people boo them
Chrome in the 2010s-2020s: shits out a bunch of own non-standard crap, people cheer and blame other browsers for not implementing this crap because... Google is "the champion of open web" or some such bullshit.