As if the white tailed eagle on Saturday wasn't enough, I'm now sat watching an Osprey at RSPB Arne! #UKBirding

Had an amazing day in Studland, Dorset. 5th time lucky I finally got to see a white tailed eagle! #ukbirding

Servo is now passing 1.9M subtests at wpt.fyi: 1,903,187 / 2,131,264 (89,3%) 🎉 See wpt.fyi/results/?pro...

How do you measure rendering performance for entire DOM subtrees without slowing down the browser? ⏱️ ✍ In my new blog post, I dive into the technical details of how I implemented the new Container Timing #webperf API in #Blink / #Chromium. blogs.igalia.com/dape/2026/03...

Already wrote mine: blog.jim-nielsen.com/2022/browser...

We have more than 80 people registered to participate onsite in the Web Engines Hackfest 2026: webengineshackfest.org#attendees If you want to join us, please fill the form at: forms.gle/7gSwfFebFW7s...

The CloseWatcher API landed in Firefox 149, making it easy to listen for platform-specific 'dismiss' signals. Here's how it works:

No light dismiss or escape to close yet but got a prototype of popovers in Servo.

Whose ugly mug is that 👀 But also go and write about why you want browsers to be user agents again! (Or at least give us a better API for sites to do it)

Hella cool to see MathML oriented content and demos in WebKit feature highlights!

Another customisable <select> demo to add to the pile. I had a lot of fun with anchor position, anchor containers, scroll containers, calc-size etc etc random-stuff.jakearchibald.com/fancy-select/ Chrome only… for now, but it falls back nicely.

Gecko: Intent to ship: light-dark() for CSS images

🆕 The Popover API is Baseline, no JavaScript needed Tooltips, dropdowns, and menus with just HTML attributes. ⋅ popover attribute on any element ⋅ popovertarget to wire the trigger ⋅ Accessible by default, no ARIA hacks Learn more 👇 developer.mozilla.org/en-US/docs/...

Me every time I have to think about input buttons 😭. TIL their layout is quite different to real buttons.

Ventured out in the high winds and hailstorms to try my luck at a very rare bird for Wales. Thankfully I was rewarded and even got some sunshine. Baikal Teal near Waungron, Swansea first lifer of the year. #ukbirding #birdingwales

The Temporal proposal, co-championed by Igalia, advances to Stage 4 at TC39 — replacing JavaScript's Date API after nine years of work. Congratulations to everyone involved! Here's to better date-time handling on the web and beyond. www.igalia.com/2026/03/13/T...

@bkardell.com and @meyerweb.com chat with Igalia's @ptomato.name, @nicr.dev and Bloomberg's @jason-williams.co.uk about the JavaScript Temporal API www.igalia.com/chats/tempor...

There are some things I find odd about the geolocation element. matuzo.at/blog/2026/ge...

Temporal is now Stage 4 at TC39 🎂🎂🎂 Thanks to all the other champions of JavaScript's new date-time API. It has been a wild ride over many years! I wrote a blog post explaining how we got here 📜 bloomberg.github.io/js-blog/post...

We would like to congratulate @lukewarlow.dev on being appointed by the W3C TAG as an Associate! The Associate program (tag.w3.org/associates/) was launched a little over a year ago with the goal of helping to extend the TAG's ability to review and influence work.

For those who want to test their perception of colour, I made a little game called "What's My JND" www.keithcirkel.co.uk/whats-my-jnd...

Oooh, nice to see another browser working on this API!

A little over 3 months to go until Web Engines Hackfest 2026, happening June 15–17 in A Coruña! If you plan to attend onsite, please register here: forms.gle/7gSwfFebFW7s... We already have more than 50 people registered: webengineshackfest.org#attendees

Initial prototype of a `<toolbar>` element is coming along. Largely piggybacks off the focusgroup code so it's actually quite simple to do. Lots to discuss and tweak before it's finished but got to start somewhere.

Blink: Intent to Prototype: HTML toolbar element

Open UI has been working on speccing out the focusgroup attribute: a declarative way to support roving focus & add keyboard nav to composite widgets like toolbars/menus We'd love your feedback! Learn more & see open questions: developer.chrome.com/blog/focusgr... H/t to Edge folks for prototyping

just posted about our Tagged PDFs work here: vignatti.com/posts/access...

Today in form controls are cursed, a range input with appearance none renders a thumb but no fill or track in all 3 major engines.

Igalia is proud to announce our Coding Experience program for 2026! Open to all new programmers, students and self-learners alike, applications are invited till the 3rd of April in one or more of five areas of Open Source development. Apply now! www.igalia.com/2026/02/27/I...

704: Sanitizer API with Frederik Braun We talk with Frederik Braun from Mozilla about the Sanitizer API, how it works with HTML tags and web components, what it does with malformed HTML, and where CSP fits in alongside the Sanitizer API.

Says a lot about how great an event is when people (including me) buy their tickets a year in advance!

Here's the consultation i mentioned at #sotb26 I'm not kidding when I told you that the regularlors love to hear from developers rather than lobbyists. Doesn't need to be structured relost. They simply way to your view. https://brucelawson.co.uk/2026/on-apples-pinky-promises-to-cma/

Here's the consultation i mentioned at #sotb26 I'm not kidding when I told you that the regularlors love to hear from developers rather than lobbyists. Doesn't need to be a structured doc. You can be anonymous. They simply want hear to your view. brucelawson.co.uk/2026/on-appl...

Heading back after a great day at state of the browser, great talks as ever! Great people too, finally got to meet a few in real life. Nice to see an actual UK tech scene, with people coming from the continent and even a couple from the US! #SotB26

Cassie showing off a game with lots of fancy GSAP animations. #SotB26

It's not just Luke's opinion. By volume Temporal has more tests and more lines of spec text than any previous JavaScript feature ⚖️

I reckon the secret to improving browsers is to find something that’s a pain point for Bloomberg and get them support it Worked for grid, Temporal and ContainerTiming #StoB26

Next we have @mikehall314.bsky.social. He had to build for a client (who he can't name) who were based in a country with not good infrastructure and they also requested a website that will work on feature phones. No WiFi support and often no 3G support. #SotB26

How well do you know JavaScript's Date class? #SotB26 jsdate.wtf

@jason-williams.co.uk presenting the story of Temporal, the biggest addition to JavaScript since es6 imo. #SotB26

It turns out that Maki can hear @kitation.co.uk say “din dins” even when we’re 150 miles away in London. #SotB26

January in Servo… 🔮🗜️ <link rel=preload> 🎨📂 ‘::details-content’ and ‘:open’ 💖📝 revamped form inputs 📜📦 new features for JS modules 🪆🌐 HTTPS proxy support servo.org/blog/2026/02...

Next we have @zachleat.com. The bromance of him and @matuzo.at continues as they put their photos of each other on stage. #SotB26

You can do your entire career without talking to a disabled person. Auditors just follow the guidelines, but there are some things you won't know without user research. We are not immune to ableism. #SotB26

Next is @kitation.co.uk talking about accessibility! They started with a slide with a spider which was difficult for all aracniphobes in the room, including themselves! 😂 But it has a slider to change how scary the spider is. #SotB26

Next we have Fiona Safari giving her first talk! Woohoo! She didn't get energised by crowds as a kid. She used to wonder if there's something wrong with her. But then she learnt she was an introvert. She gets energy from being with her own thoughts. #SotB26

First is @bram.us talking about anchor positioning. To make a tooltip follow an info icon, we can easily chuck a lot of JavaScript at the problem to get it to follow on scroll and move the arrow to the other side. Isn't there an easier way? #SotB26

Made it! With time to spare which is unusual! #SotB26

Very early start but on my way to #SotB26 in London! I'm face blind so give me a prod if I ignore you 😂

Customisable select! (Single select in dropdown mode only for now)