Friendly reminder that there's a way to go on-the-record with your project's or company's #CrossOriginStorage API use case and express support. This can be helpful when discussing with other vendors.
👉 Current supporters: github.com/WICG/cross-o...
👉 Add yours: github.com/WICG/cross-o...
👉 Current supporters: github.com/WICG/cross-o...
👉 Add yours: github.com/WICG/cross-o...
Issues · WICG/cross-origin-storage
Cross-Origin Storage (COS), a content-addressable browser cache that shares files across origins by hash, with k-anonymity-based availability gating to prevent cross-site tracking - Issues · WICG/c...
github.com
September 28, 2026 at 7:12 PM
Friendly reminder that there's a way to go on-the-record with your project's or company's #CrossOriginStorage API use case and express support. This can be helpful when discussing with other vendors.
👉 Current supporters: github.com/WICG/cross-o...
👉 Add yours: github.com/WICG/cross-o...
👉 Current supporters: github.com/WICG/cross-o...
👉 Add yours: github.com/WICG/cross-o...
Container Timing - a new W3C performance metric - has migrated from Bloomberg to the WICG Github org 🎉
@jason-williams.co.uk made the Bloomberg Terminal use this web metric to measure human-perceived time to start apps. We've found it more useful than existing metrics.
github.com/WICG/contain...
@jason-williams.co.uk made the Bloomberg Terminal use this web metric to measure human-perceived time to start apps. We've found it more useful than existing metrics.
github.com/WICG/contain...
February 25, 2026 at 9:29 AM
Container Timing - a new W3C performance metric - has migrated from Bloomberg to the WICG Github org 🎉
@jason-williams.co.uk made the Bloomberg Terminal use this web metric to measure human-perceived time to start apps. We've found it more useful than existing metrics.
github.com/WICG/contain...
@jason-williams.co.uk made the Bloomberg Terminal use this web metric to measure human-perceived time to start apps. We've found it more useful than existing metrics.
github.com/WICG/contain...
We have Custom Elements, but do we also need Custom Attributes?
This was discussed at TPAC. Is it something you'd like on the platform?
https://github.com/WICG/webcomponents/issues/1029
This was discussed at TPAC. Is it something you'd like on the platform?
https://github.com/WICG/webcomponents/issues/1029
December 1, 2025 at 2:29 PM
We have Custom Elements, but do we also need Custom Attributes?
This was discussed at TPAC. Is it something you'd like on the platform?
https://github.com/WICG/webcomponents/issues/1029
This was discussed at TPAC. Is it something you'd like on the platform?
https://github.com/WICG/webcomponents/issues/1029
wouldn't it be nice if sites could share a cache of common js?
... stuff like react, or vue or svelte?
👉 there's an early stage proposal for cross-origin storage which enables exactly this.
there are challenges but I think it's very interesting indeed
... stuff like react, or vue or svelte?
👉 there's an early stage proposal for cross-origin storage which enables exactly this.
there are challenges but I think it's very interesting indeed
GitHub - WICG/cross-origin-storage: Explainer for the Cross-Origin Storage (COS) API
Explainer for the Cross-Origin Storage (COS) API. Contribute to WICG/cross-origin-storage development by creating an account on GitHub.
github.com
June 26, 2026 at 10:28 PM
wouldn't it be nice if sites could share a cache of common js?
... stuff like react, or vue or svelte?
👉 there's an early stage proposal for cross-origin storage which enables exactly this.
there are challenges but I think it's very interesting indeed
... stuff like react, or vue or svelte?
👉 there's an early stage proposal for cross-origin storage which enables exactly this.
there are challenges but I think it's very interesting indeed
Here's the explainer on HTML patching github.com/WICG/declara...
declarative-partial-updates/patching-explainer.md at main · WICG/declarative-partial-updates
Contribute to WICG/declarative-partial-updates development by creating an account on GitHub.
github.com
February 16, 2026 at 2:46 PM
Here's the explainer on HTML patching github.com/WICG/declara...
Real DOM content in a canvas: fully searchable, translatable, inspectable.
You can have forms, add WebGL effects & much more.
Imagine if this was a customizable select 🤯
A little WIP exploration (not finished) for a very exciting API.
github.com/WICG/html-in...
You can have forms, add WebGL effects & much more.
Imagine if this was a customizable select 🤯
A little WIP exploration (not finished) for a very exciting API.
github.com/WICG/html-in...
April 3, 2026 at 5:41 PM
Real DOM content in a canvas: fully searchable, translatable, inspectable.
You can have forms, add WebGL effects & much more.
Imagine if this was a customizable select 🤯
A little WIP exploration (not finished) for a very exciting API.
github.com/WICG/html-in...
You can have forms, add WebGL effects & much more.
Imagine if this was a customizable select 🤯
A little WIP exploration (not finished) for a very exciting API.
github.com/WICG/html-in...
#JackNicholsong
#MusicChallenge
Songs with a name or a first name in the title
2. Julie - The Levellers
youtu.be/HtykSv-wiCg?
#MusicChallenge
Songs with a name or a first name in the title
2. Julie - The Levellers
youtu.be/HtykSv-wiCg?
The Levellers - Julie (Single Version)
YouTube video by The Funkloft
youtu.be
August 2, 2026 at 2:36 AM
#JackNicholsong
#MusicChallenge
Songs with a name or a first name in the title
2. Julie - The Levellers
youtu.be/HtykSv-wiCg?
#MusicChallenge
Songs with a name or a first name in the title
2. Julie - The Levellers
youtu.be/HtykSv-wiCg?
Really great questions and comments on @danielroe.dev's posts on Nuxt's experiments with the Cross-Origin Storage API (github.com/WICG/cross-o...):
🐘 Mastodon: mastodon.roe.dev/@daniel/1168...
🦋 Bluesky: bsky.app/profile/dani...
💼 LinkedIn: www.linkedin.com/posts/daniel...
🐘 Mastodon: mastodon.roe.dev/@daniel/1168...
🦋 Bluesky: bsky.app/profile/dani...
💼 LinkedIn: www.linkedin.com/posts/daniel...
June 27, 2026 at 8:09 AM
Really great questions and comments on @danielroe.dev's posts on Nuxt's experiments with the Cross-Origin Storage API (github.com/WICG/cross-o...):
🐘 Mastodon: mastodon.roe.dev/@daniel/1168...
🦋 Bluesky: bsky.app/profile/dani...
💼 LinkedIn: www.linkedin.com/posts/daniel...
🐘 Mastodon: mastodon.roe.dev/@daniel/1168...
🦋 Bluesky: bsky.app/profile/dani...
💼 LinkedIn: www.linkedin.com/posts/daniel...
WebCrypto key management API proposal at WICG, from @pryvitkyle.bsky.social
would open the door to hardware-backed keys
github.com/WICG/proposa...
(background: ~4yrs of chatter in github.com/w3c/webcrypt...)
would open the door to hardware-backed keys
github.com/WICG/proposa...
(background: ~4yrs of chatter in github.com/w3c/webcrypt...)
PROPOSAL: WebCrypto Key Management API Extension · Issue #214 · WICG/proposals
Introduction As cryptographic key management is becoming more necessary on the Web for security purposes it has meant that many wallets, extensions, and browser features need to re-implement key ma...
github.com
July 9, 2025 at 10:36 AM
WebCrypto key management API proposal at WICG, from @pryvitkyle.bsky.social
would open the door to hardware-backed keys
github.com/WICG/proposa...
(background: ~4yrs of chatter in github.com/w3c/webcrypt...)
would open the door to hardware-backed keys
github.com/WICG/proposa...
(background: ~4yrs of chatter in github.com/w3c/webcrypt...)
We've been working on a few proposals we'd like to bring to the web platform to make it easier to have more seamless navigations between pages.
@nomster.bsky.social @foolip.org and @dbaron.org presented these at W3C TPAC annual meeting last week
More details here:
github.com/WICG/declara...
1/6 🧵
@nomster.bsky.social @foolip.org and @dbaron.org presented these at W3C TPAC annual meeting last week
More details here:
github.com/WICG/declara...
1/6 🧵
GitHub - WICG/declarative-partial-updates
Contribute to WICG/declarative-partial-updates development by creating an account on GitHub.
github.com
November 19, 2025 at 8:49 PM
We've been working on a few proposals we'd like to bring to the web platform to make it easier to have more seamless navigations between pages.
@nomster.bsky.social @foolip.org and @dbaron.org presented these at W3C TPAC annual meeting last week
More details here:
github.com/WICG/declara...
1/6 🧵
@nomster.bsky.social @foolip.org and @dbaron.org presented these at W3C TPAC annual meeting last week
More details here:
github.com/WICG/declara...
1/6 🧵
@developit.dev would love to chat about this. I'm prototyping something for github.com/WICG/webcomp...
June 11, 2025 at 11:01 AM
@developit.dev would love to chat about this. I'm prototyping something for github.com/WICG/webcomp...
🤩 View Transitions Excitement!
What if, instead of calling `document.startViewTransition`, you could run a View Transition on only a subtree of the DOM by calling `element.startViewTransition`?
👉 It’s getting prototyped in Chromium!
📖 Explainer: github.com/WICG/view-tr...
What if, instead of calling `document.startViewTransition`, you could run a View Transition on only a subtree of the DOM by calling `element.startViewTransition`?
👉 It’s getting prototyped in Chromium!
📖 Explainer: github.com/WICG/view-tr...
Blink: Intent to Prototype: Scoped view transitions
Blink: Intent to Prototype: Scoped view transitions
Blink: Intent to Prototype: Scoped view transitions
groups.google.com
February 11, 2025 at 11:59 PM
🤩 View Transitions Excitement!
What if, instead of calling `document.startViewTransition`, you could run a View Transition on only a subtree of the DOM by calling `element.startViewTransition`?
👉 It’s getting prototyped in Chromium!
📖 Explainer: github.com/WICG/view-tr...
What if, instead of calling `document.startViewTransition`, you could run a View Transition on only a subtree of the DOM by calling `element.startViewTransition`?
👉 It’s getting prototyped in Chromium!
📖 Explainer: github.com/WICG/view-tr...
github.com/WICG/sub-apps
office productivity suites 🤔
office productivity suites 🤔
GitHub - WICG/sub-apps
Contribute to WICG/sub-apps development by creating an account on GitHub.
github.com
July 15, 2026 at 4:49 PM
github.com/WICG/sub-apps
office productivity suites 🤔
office productivity suites 🤔
I'm proposing a way to be able to persist iframes across navigations
github.com/WICG/proposa...
Best idea or worst idea??
github.com/WICG/proposa...
Best idea or worst idea??
Persistent iframes · Issue #289 · WICG/proposals
Introduction Hard navigations of top-level documents result in the destruction of all the child iframes of those documents. In cases of same-origin navigations, there's high likelihood that at leas...
github.com
May 21, 2026 at 10:50 AM
I'm proposing a way to be able to persist iframes across navigations
github.com/WICG/proposa...
Best idea or worst idea??
github.com/WICG/proposa...
Best idea or worst idea??
I must say that I'm pretty happy about the direction of the Observable spec (github.com/WICG/observa...) and its focus on processing events.
Thnx @domfarolino.com for taking time to chat about it today. And looking forward to collaborating more, especially around linking / reducing events to state.
Thnx @domfarolino.com for taking time to chat about it today. And looking forward to collaborating more, especially around linking / reducing events to state.
GitHub - WICG/observable: Observable API proposal
Observable API proposal. Contribute to WICG/observable development by creating an account on GitHub.
github.com
November 8, 2024 at 10:03 PM
I must say that I'm pretty happy about the direction of the Observable spec (github.com/WICG/observa...) and its focus on processing events.
Thnx @domfarolino.com for taking time to chat about it today. And looking forward to collaborating more, especially around linking / reducing events to state.
Thnx @domfarolino.com for taking time to chat about it today. And looking forward to collaborating more, especially around linking / reducing events to state.
HTML client-side includes anyone? Been hearing y'all asking for this.
@nomster.bsky.social sent out an "Intent to Prototype" yesterday that includes this and other things!:
groups.google.com/a/chromium.o...
More details in the explainer:
github.com/WICG/declara...
Early days (but exciting days!).
@nomster.bsky.social sent out an "Intent to Prototype" yesterday that includes this and other things!:
groups.google.com/a/chromium.o...
More details in the explainer:
github.com/WICG/declara...
Early days (but exciting days!).
Intent to Prototype: Declarative fragments
groups.google.com
July 17, 2026 at 4:18 PM
HTML client-side includes anyone? Been hearing y'all asking for this.
@nomster.bsky.social sent out an "Intent to Prototype" yesterday that includes this and other things!:
groups.google.com/a/chromium.o...
More details in the explainer:
github.com/WICG/declara...
Early days (but exciting days!).
@nomster.bsky.social sent out an "Intent to Prototype" yesterday that includes this and other things!:
groups.google.com/a/chromium.o...
More details in the explainer:
github.com/WICG/declara...
Early days (but exciting days!).
Want VRR in Google Chrome / Safari / FireFox?
Newly simplified web browser VRR standardization proposal at WICG Proposals:
github.com/WICG/proposa...
Helps WebGL and WebGPU apps, and would help TestUFO too! If you're a web developer, comment!
Newly simplified web browser VRR standardization proposal at WICG Proposals:
github.com/WICG/proposa...
Helps WebGL and WebGPU apps, and would help TestUFO too! If you're a web developer, comment!
PROPOSAL: (VRR) Simplest Incubatation Path for Variable Refresh Rate (FreeSync / GSYNC / etc) · Issue #208 · WICG/proposals
Introduction Browsers generally don't support Variable Refresh Rate (VRR). Terms: FreeSync, G-SYNC, HDMI VRR, VESA Adaptive-Sync, Apple ProMotion, etc. User Benefits of Variable Refresh Rate (VRR) ...
github.com
April 17, 2025 at 11:22 AM
Want VRR in Google Chrome / Safari / FireFox?
Newly simplified web browser VRR standardization proposal at WICG Proposals:
github.com/WICG/proposa...
Helps WebGL and WebGPU apps, and would help TestUFO too! If you're a web developer, comment!
Newly simplified web browser VRR standardization proposal at WICG Proposals:
github.com/WICG/proposa...
Helps WebGL and WebGPU apps, and would help TestUFO too! If you're a web developer, comment!
I bet that I can beat this flow with this: github.com/WICG/email-v...
GitHub - WICG/email-verification-protocol: verified autofill
verified autofill . Contribute to WICG/email-verification-protocol development by creating an account on GitHub.
github.com
April 14, 2026 at 12:36 AM
I bet that I can beat this flow with this: github.com/WICG/email-v...
TIL there's the WICG Web Haptics API proposal https://github.com/WICG/web-haptics
And seems like only MS Edge (156.0.4284.0, released Sept 24) implemented it experimentally https://github.com/WICG/web-haptics/blob/main/HOWTO.md
#webhaptics #webdev
And seems like only MS Edge (156.0.4284.0, released Sept 24) implemented it experimentally https://github.com/WICG/web-haptics/blob/main/HOWTO.md
#webhaptics #webdev
GitHub - WICG/web-haptics: Web Haptics API
Web Haptics API. Contribute to WICG/web-haptics development by creating an account on GitHub.
github.com
September 28, 2026 at 1:39 AM
TIL there's the WICG Web Haptics API proposal https://github.com/WICG/web-haptics
And seems like only MS Edge (156.0.4284.0, released Sept 24) implemented it experimentally https://github.com/WICG/web-haptics/blob/main/HOWTO.md
#webhaptics #webdev
And seems like only MS Edge (156.0.4284.0, released Sept 24) implemented it experimentally https://github.com/WICG/web-haptics/blob/main/HOWTO.md
#webhaptics #webdev
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!
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!
github.com
September 3, 2025 at 7:13 PM
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!
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!
February 25, 2026 at 9:50 AM
Escape from event listener callback hell! 🌋
Observables are nearly here!
el.when('mousemove')
.takeUntil(document.on('mouseup'))
.subscribe({next: e => … });
Clean: takeUntil handles cleanup
Declarative & concise
Efficient: No event handling after mouse released
tinyurl.com/yc3rxxtz
Observables are nearly here!
el.when('mousemove')
.takeUntil(document.on('mouseup'))
.subscribe({next: e => … });
Clean: takeUntil handles cleanup
Declarative & concise
Efficient: No event handling after mouse released
tinyurl.com/yc3rxxtz
GitHub - WICG/observable: Observable API proposal
Observable API proposal. Contribute to WICG/observable development by creating an account on GitHub.
tinyurl.com
January 28, 2025 at 10:14 PM
Escape from event listener callback hell! 🌋
Observables are nearly here!
el.when('mousemove')
.takeUntil(document.on('mouseup'))
.subscribe({next: e => … });
Clean: takeUntil handles cleanup
Declarative & concise
Efficient: No event handling after mouse released
tinyurl.com/yc3rxxtz
Observables are nearly here!
el.when('mousemove')
.takeUntil(document.on('mouseup'))
.subscribe({next: e => … });
Clean: takeUntil handles cleanup
Declarative & concise
Efficient: No event handling after mouse released
tinyurl.com/yc3rxxtz
FWIW, CSP is the best thing you can use today, but it's not really built for exfiltration mitigation. We're working on github.com/wicg/connect... with that specific threat model in mind.
GitHub - WICG/connection-allowlists
Contribute to WICG/connection-allowlists development by creating an account on GitHub.
github.com
January 25, 2026 at 4:44 PM
FWIW, CSP is the best thing you can use today, but it's not really built for exfiltration mitigation. We're working on github.com/wicg/connect... with that specific threat model in mind.