So here's an interesting little thing or 2 @nomster.bsky.social , @foolip.org , and myself have been cooking up—along with lots of help from others!: developer.chrome.com/blog/declara... This could lead to some VERY interesting changes in how we write web pages. Would love to hear your thoughts!

Very pleased to see Web Serial API! 🤞for WebNFC and who knows maybe even WebUSB or WebBluetooth down the line.

👀 (there's a reason there's no property access not any function calling lol)

A huge shoutout to @igalia.com on the collaboration with Salesforce, Google and others on delivering Trusted Types that helps protect against XSS. developer.mozilla.org/en-US/docs/W... cc: @lukewarlow.dev @mikewe.st

I already think the battery status API probably shouldn't be exposed to websites, but what's even weirder is there's no user permission prompt not does chrome offers any user setting to blanket deny sites permission to access it? It's async so it's definitely possible to insert a permission step.

I’ve been working with a client who runs a lot of social media and ad campaigns, so we’ve been deploying the experimental `No-Vary-Search HTTP` header. It’s amazing to see it actually working! Read all about it here: csswizardry.com/2026/05/bett...

If you buy a super early bird ticket for State of the Browser, we can guarantee there’s no chance of DHH being anywhere in the room.

Recently, we fixed an unprecedented number of latent security bugs in Firefox identified by Claude Mythos Preview. Here's how we approached this work, what we found, and what we learned: hacks.mozilla.org/2026/05/behi...

Who decided that blue sky profile headers were fixed now (I think it's new?). Some profiles have so much in there that it's essentially impossible to read their posts.

Are you coming to @igalia.com's @webengineshackfest.org ? Have something you'd like to talk with people about or show off? Missing W3C breakouts? We have them too! Submit a breakout: github.com/Igalia/weben...

I think my favourite part of this conference has been when the audience cheered as @jakearchibald.com selected some text along a curved line ❤️ #AllDayHey

Leaving Manchester now bound for Leeds! Looking forward to All Day Hey, and seeing everyone attending.

Nice to see field-sizing will soon be in all major 3 engines!

Gecko: Intent to Ship: field-sizing:content

Very cool foxes at a nearby nature reserve! Been a while since I've seen them so clearly.

Chrome looks set to ship an LLM Prompt API to the web platform. At Mozilla, we oppose this API. We feel it has a large interoperability risk, and Google imposing T&Cs on a web API sets a dangerous precedent. Full details: github.com/mozilla/stan...

March in Servo… ➡️⌨️ tab and accesskey navigation 🔬🐞 see live values in the debugger 📝✅ better carets and form fields 📜📦 JS modules in web workers 😈🔱 Servo now runs on FreeBSD! servo.org/blog/2026/04...

NEWS 📣 The Sovereign Tech Agency is launching the Sovereign Tech Standards network today, a new program designed to bring open source maintainers directly into global standards development. www.sovereign.tech/news/join-so...

Finally used yesterday evening's nice weather to go up and see South Wales' resident Osprey pair. Clogwyn (the female) was hunkered on the nest incubating the eggs, and Syfaddan (the male) was off presumably fishing at nearby Llangorse Lake or Talybont Resevoir. #BirdingWales #UKBirding

As of latest Safari Tech Preview (242) support for the dialog closedby attribute is enabled (not enabled for stable yet). If people could give it a test that would be a great help! developer.mozilla.org/en-US/docs/W...

Wild how much difference @preactjs.com and Shopify Polaris Web Components make. A simple Admin UI Extension is 4 times smaller bundle 🤯 React version: 116KB New version: 24KB

Blink: Intent to Ship: Focusgroup

I wish build tooling for arm Linux was in a better state. The Android SDK afaik isn't available there. Kotlin Native can run but can't be compiled there. I'm sure there's plenty more. I even tried to get the kotlin compiler fixed but kept running into linking issues related to atomic instructions.

Experimenting with the new customizable select functionality today. Turns out Cally's <calendar-select-year> and <calendar-select-month> components will work out of the box! Codepen (chrome only for now): codepen.io/editor/Wicky...

Popped down to Pembrey this evening to get the Woodchat Shrike that was found yesterday, thankfully it was still around and showing well! This is a pretty rare find for Wales. This along with the grasshopper warblers (no photos unfortunately) brings me to 210 UK species! #birdingwales #ukbirding

Amazing, I've been lobbying for this for years: blinkon 21 is hosted by Microsoft! Maybe igalia next? 🙂 Love it

According to Microsoft 1 in 25 people have forced colors turned on. Making your site work for them involves just a few, simple tweaks like the one Manuel mentions here. Though of course just toggle "forced-colors" in the Emulation settings in @polypane.app instead of digging around devtools ;)

It's kinda annoying that the only way to add repos to a list in GitHub is to star it. I don't want to star my own repos 😅

I am designer.

Servo 0.1.0 is out! 🚀 This is our first release available in crates.io and our first LTS version servo.org/blog/2026/04...

To people writing large web pages of text, I'm begging you to make give your headings IDs and to expose some way to copy the fragment link to clipboard.

Good views of the American Wigeon on Ogmore river near Bridgend. Seems to be 3 males left. #BirdingWales

🎙️ New Episode of Igalia Chats - npmx: The People Powered Package Index @bkardell.com and @ryzokuken.dev chat with @danielroe.dev and @patak.cat of npmx about the project, the community and Open Source www.igalia.com/chats/npmxyz

Water vole out up Cosmeston Lakes! Typically didn't have my camera with me so just phone pics.

Been thinking about how much JavaScript we ship for basic UI patterns. Wrote it up. Anchor positioning, Popover API, Scroll-Driven Animations and more — what they replace and what's still missing 👉 blog.gitbutler.com/the-great-cs...

@mikehall314.bsky.social - Lessons from Building for the Bottom of the Web. Talk from #SotB26 is now live. 2026.stateofthebrowser.com/speaker/mike...

Look, the Web Engines Hackfest is now a W3C-endorsed conference: www.w3.org/events/confe... Some working groups might arrange meetings at the hackfest. Thanks to W3C for your support and collaboration.

Does anyone know of any custom bluesky clients that are full featured? I basically want Bluesky's but not horribly broken half the time? Like what is it that means interactive elements just cease to function, I've had it happen in two unrelated apps and both are react native...

Reminder: including alt-text on your images is helpful in many ways! It increases accessibility, can add context/detail, makes search more effective, & can improve your reach (a lot of us won’t re-share images without alt-text). If you set it as required in accessibility settings, you can’t forget!

Nice day out at Stonehenge, went to see Gertrude the Great Bustard who's recenly returned. Got treated to a bonus Osprey flyby! My third Osprey this week but much less expected than in Poole harbour. #UKBirding

Stop writing boilerplate JS for accessible menus. We’re proposing a new HTML primitive: focusgroup. It brings native keyboard arrow-key navigation directly to the platform. Tell us what you think → goo.gle/4uvFIkz 🧵(1/3)

New on the Squarespace Engineering Blog! Squarespace & Web Standards: How We Helped Bring HTML Video & Audio Lazy-Loading to Today’s Browsers. I'm real proud of the teamwork that went into this. Stay tuned for part 2 next week, which will cover dev best practices for using this new HTML standard.

I've been playing around with Chrome's experimental HTML-in-Canvas API (I use it to create my videos), and I wanted to see if I could make text-selection work on a curved surface by moving the underlying element around on pointermove. It works pretty well!

CSSWG have resolved to support appearance base on fieldset! github.com/w3c/csswg-dr... Cc @adactio.com I know you were keen for this.

A successful end to my holiday in Dorset. Spent the morning at Swineham. An osprey flew past carrying a massive sea bass. Found a little ringed plover and also heard bearded reedlings (both new lifers) and a surprise group of 4 adders, including this female.

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...