Firefox 147 should land the Navigation API 🙌🏻 🙌🏻 🙌🏻 bugzilla.mozilla.org/show_bug.cgi...

I can't describe how much I love this conference and how sad I am that this is the last one. If you've ever thought it looks good and you want to try it, *now* is the time to do it with the cheapest tickets. Trust me, you won't be disappointed. See you there?

Not only did @bram.us solve my problem (combining Scroll Driven Animations with @starting-style) but he even blogged about it 👏 All within 24 hours. If I had one, my gratitude journal would mostly be a list of Bluesky handles 😅

@bram.us is there any way to combine scroll driven animations with starting-style? e.g. to have something fade-in on page load with starting-style, but then have its scroll container apply an animation which operates on opacity? I need the `@starting-style { opacity: 0 }` to take priority, I guess?

When you have poor signal, the Bluesky app becomes more true to its name.

Fellow #perfnow fellows, a reminder that PerfPlanet calendar is coming this December for another edition. And it needs YOU. Please ask if you have any contribution ideas or concerns calendar.perfplanet.com/contribute/

In my opinion, any SWE writing client-side JavaScript has a responsibility to understand the Event Loop. @jakearchibald.com’s ‘In The Loop’ talk is required watching: www.youtube.com/watch?v=cCOL... (cited by @andydavies.me at #perfnow)

“~200 bytes of JavaScript that can wreck your performance” – @andydavies.me explaining download size doesn’t always correlate to runtime performance at #perfnow #webperf

“What happens when you want to center a div in Chrome?” — @michael-hladky.bsky.social at #perfnow This would make a great interview question that would give a variety of different answers. #webperf

Northern UK developers: join us tonight in Manchester for a talk on scaling to support hundreds of millions in client transaction volume. It contains a lot of framework-agnostic advice, so non-Ruby developers stand to learn a thing or two too!

Safari TP 230 includes support for Largest Contentful Paint 🙌 #webperf

Just one week to go until our next event! Come hear @twnsnd.com share his story – Millions on Rails: A Two-Decade Retrospective on Scaling With Rails nwrug.org/events/milli...

The next evolution from Zstd compression: openzl.org More info: engineering.fb.com/2025/10/06/d... #webperf

Is this mob programming?

At #fronteers #DarkMode, @utilitybend.com proposed the <rangegroup> HTML Element. It unlocks the multi-handle range slider, a pattern you might have already seen when picking a price-range. Feedback Form (with links to the explainer and demos): docs.google.com/forms/u/0/d/...

messenger.abeto.co This is freaking insane. The level of polish necessary for this visual fidelity and it all runs flawlessly on mobile. Hats off.

Looking forward to talking about scaling #RubyonRails to hundreds of millions of yearly client revenue @nwrug.org meetup on Thursday 16th in Manchester, my old university city 🙌 Come join us for free 👉 nwrug.org/events/milli...

Compression dictionaries is now an official RFC! www.rfc-editor.org/rfc/rfc9842....

This is a fun one: what a 1990s PlayStation game studio taught me about software engineering 🎮 youtu.be/86bnEALGiDY

Blink: Intent to Ship: Interest Invokers (the `interestfor` attribute)

The #1 reason to upgrade to iOS 26… particularly in the UK, spam has been epidemic recently.

Added an Interop 2026 Proposal for CSS Scroll State: github.com/web-platform... – please upvote! It would be nice to remove JavaScript requirement for various popular design patterns we're all using on the web (floaty navs, scroll shadows etc) cc: @nerdy.dev @bram.us #webperf #webplatform #webdev

"It’s time to choose frameworks based on constraints and merit rather than momentum." – @cheddybop.bsky.social Amen 👏 www.lorenstew.art/blog/react-w... #webplatform #webdev #webperf

Even if you don't contribute a proposal, you can participate in Interop 2026 by upvoting your most desired features, here are a few of mine: Invoker Commands: github.com/web-platform... Scroll-driven Animations: github.com/web-platform... LoAF: github.com/web-platform... #webdev #webperf

Ways to track LCP and INP are coming to browsers this year, hopefully for 2026 CLS we can get added. github.com/web-platform...

Given some of the recent dependency issues, it's worth considering every single dependency you are using in your JS projects. Everything has a cost...

Holy fuck Safari is dropping so much gold in this release 😍

Interop 2026 is now open for proposals! This is your chance to tell browser-makers which well-defined, well-tested features you wish had better support across browsers. ⬇️ Here's how ⬇️ github.com/web-platform...

What if some client-side browsing features were part of the web platform? Direct CSS reflection of URL state, snappy pending/optimistic UI, URL-to-scroll-snap binding, and some basic same-document navigation use cases, with JS being only an option. github.com/WICG/declara... Inviting feedback!

Oh, it's September already. Time for the HTMHell Advent calendar Call for Papers! 🖤 docs.google.com/forms/d/e/1F...

Has anyone seen any neat uses of the command/commandfor API yet? Any component libraries that support custom command events? Even just anyone whose tried them and wrote about their experience?

Message/Event buses are such a slept-on pattern in web development. - The code is super simple - They are fast - They are built on native browser events - They work within any framework I am massively more productive because of them.

A little reminder: if you work in #webdev you should care about #webperf. @perfnow.nl is *the* yearly conference, an opportunity to learn from the absolute best plus a super supportive and welcoming community. Tickets will pay dividends in business impact.

👏👏👏 James is doing amazing work in the #JavaScript ecosystem to reduce the baggage we all collect when reaching for `npm install`. There's a very good chance he's had significant impact on your bundle size without you even knowing it. #webperf

Just got command buttons enabled in stable on WebKit trunk! Firefox recently sent out an intent-to-ship so hopefully by early next year they'll be available across the board.

Very exciting news. With these changes, you can more easily build accordions such as seen in this recording. developer.chrome.com/blog/styling... Currently supported in Chrome and Safari, and soon Firefox!

colleague: "hey, did I ask you to review this doc yet? <link>" me: [ opens link, reads ] me: "nope, and I can tell because there's no names or dates on it" infrequently.org/names-and-dates/

I didn't ask, but... cool? Just generate the CLI command please.

This post is the culmination of my thinking about (and building) SPA-like apps w minimal JS for the last 2 yrs The ideas are informed in large part by the @infrequently.org blog posts and talks Thanks @htmx.bsky.social and @astro.build for building great tools. www.lorenstew.art/blog/progres...

Anyone got the DL on email #accessibility? Do folks just use the text-only versions or does proper HTML markup matter?

Did you know you can do `height: stretch` now in CSS? Works for `width` too. /via @patrickbrosset.com developer.mozilla.org/en-US/docs/W...

My friends over at RUMvision.com have sent me a lovely gift. I think my boys love it as much as I do, though they are mostly interested in fighting over occupation of the box. Thank you @jordyscholing.bsky.social, @erwinhofman.bsky.social and @karlijnlowik.bsky.social ❤️

It was #RubyonRails’ 21st birthday last week, which means I’ve been using it for two decades! To celebrate, I’ve published a video about my favourite 21 features from my experience using it for large-scale applications 👉 youtu.be/R2tiFtPXobI

Don't make me point at the sign.

Nothing beats a…

I've been working with #Rails for 20 years now and today marks my first ever contribution: github.com/rails/rails/... Feels good to finally give back—albeit in a *very* minor way—to the framework that has given me *so* much.

🏁 Any car nerds in my network? I just got back from my first Goodwood Festival of Speed. Witnessed some utterly incredible vehicles many of which worth more than my house.

@whitep4nth3r.com bravo 👏👏👏 no notes #frontendnorth

“The holy trinity of boring” – @ichimnetz.com at #frontendnorth

Who knew @bell.bz was such a fantastic copywriter?! 👌 #frontendnorth