ep90 Monthly Web 202111

published_at: 2021-12-13
guest: @myakura
toc: headings

Theme
Show Note

Chrome 動向

Stable: 96
Updates
Intents
V8
Other

Firefox 動向

Stable: 95.0
Updates
Intents
Other

Safari 動向

Stable: 15.1
Updates
Position
Other

Edge 動向

Stable: 96
Updates
Chakra
Other

WHATWG/W3C 動向
TPAC

Draft
Other

TC39 動向

Meeting
Proposals Diff
New Proposals
Other

IETF 動向

WG
Other

CDN 動向

Cloudflare
Fastly
Other

セキュリティ動向
周辺動向
イベント
Wrap Up

Theme

第 90 回のテーマは 2021 年 11 月の Monthly Web です。

Show Note

Chrome 動向

Stable: 96

Updates

New in Chrome 96 - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-chrome-96/
- Manifest id for PWAs
- URL protocol handlers for PWAs
- Priority hints (origin trial)
- Emulate Chrome 100 in the UA string
- Chrome Dev Summit
- And more!
  - bfcache is available
What's New In DevTools (Chrome 96) - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-devtools-96/
- Preview feature: New CSS Overview panel
- Rendering tab updates
  - Emulate the CSS prefers-contrast media feature
  - Emulate the Chrome's Auto Dark Theme feature
- Copy declarations as JavaScript in the Styles pane
- New Payload tab in the Network panel
- Improved the display of properties in the Properties pane
- Console updates
  - Option to hide CORS errors in the Console
  - Proper Intl objects preview and evaluation in the Console
  - Consistent async stack traces
  - Retain the Console sidebar
- Deprecated Application cache pane in the Application panel
- [Experimental] New Reporting API pane in the Application panel
Chromium Blog: Chrome 97: WebTransport, New Array Static Methods and More
- https://blog.chromium.org/2021/11/chrome-97-webtransport-new-array-static.html
- Preparing for a Three Digit Version Number
- Features in this Release
  - Auto-expand Details Elements
  - Content-Security-Policy Delivery via Response Headers for Dedicated Workers.
  - CSS
    - font-synthesis Property
    - transform: perspective(none)
  - Feature Policy for Keyboard API
  - HTMLScriptElement.supports() Method
  - Late Newline Normalization in Form Submission
  - Standardize Existing Client Hint Naming
  - WebTransport
- JavaScript
  - Array and TypedArray findLast() and findLastIndex()
- Deprecations and Removals
  - Remove SDES Key Exchange for WebRTC
  - Remove WebSQL in Third-Party Contexts
  - Remove SDP Plan B
What's New In DevTools (Chrome 97) - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-devtools-97/
- Preview feature: New Recorder panel
- Refresh device list in Device Mode
- Autocomplete with Edit as HTML
- Improved code debugging experience
- [Experimental] Syncing DevTools settings across devices
Deprecations and removals in Chrome 97 - Chrome Developers
- https://developer.chrome.com/en/blog/deps-rems-97/
- Remove SDES key exchange for WebRTC
- Remove WebSQL in third-party contexts
- Remove SDP Plan B
Chrome Dev Summit
- https://www.youtube.com/watch?v=lNecNY6vDek
- Keynote で Flash を HTML5 に終わらせられた Adobe の VP が Photoshop PWA で、「Web でなんでもできる」って話をしてて感慨深い。

Intents

Prototype: Capability Delegation
- https://groups.google.com/a/chromium.org/g/blink-dev/c/9CeLYndESPE
- targetWindow.postMessage("process_payment", {delegate: "payment"});
- 的な感じに特定のフレームに Policy を delegate できる
Prototype: HTMLInputElement showPicker()
- https://groups.google.com/a/chromium.org/g/blink-dev/c/fEebe5uXQ1I
- 日付、色、ファイルなどのピッカーを JS から読み出せる
Prototype: LCP support for animated images/auto-playing videos
- https://groups.google.com/a/chromium.org/g/blink-dev/c/c7AbRQiHh6g
Prototype: Sec-CH-UA-Full-Version-List user-agent client hint
- https://groups.google.com/a/chromium.org/g/blink-dev/c/2V3kubJSOU0
- Ship で解説
Prototype: State extension for JS Self-Profiling API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/m1hp39BMNcQ
Prototype: Web app translations
- https://groups.google.com/a/chromium.org/g/blink-dev/c/RweGN8hSvUg
Prototype: 'blocking=rendering' attribute on scripts and link resources
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ujX8Vbr_VFE/m/Z61eyTcoBAAJ
- 明示的に blocking を要求する属性
- Flash of Unstyled Contents (FOUC) などを防ぐ
Prototype: Dark mode support for web apps
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Y6zNtG0f-6A/m/cOhkfVGSBAAJ
- manifest に theme と background の color を指定できる
Prototype: High Dynamic Range Support for HTMLCanvasElement
- https://groups.google.com/a/chromium.org/g/blink-dev/c/S609KGTkSSk/m/1EW4CWn3BgAJ
Prototype: Web Neural Network API (WebNN)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/PD6TDMDS9mg/m/N3MrigMyCAAJ
Prototype: Web Machine Learning: Model Loader API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/w7Oq2_x2D8U
Prototype: NDEFReader makeReadOnly()
- https://groups.google.com/a/chromium.org/g/blink-dev/c/iyljeGnIct8/m/tonTVszmCAAJ
- NFC を永久に読み取り専用にする
- 悪意のある上書きを防ぐための手段
Prototype: Allow cookie domain attributes to be the empty string
- https://groups.google.com/a/chromium.org/g/blink-dev/c/kcvn81WtlvM
- 今の Chrome は Cookie の Domain 属性が空文字だと仕様と違う動きをする
- これを仕様(RFC6265bis) に準じるように直す。
- 互換性もあがり、WPT も通る。
Prototype: Presentation API: Site-initiated mirroring
- https://groups.google.com/a/chromium.org/g/blink-dev/c/IYgoj9avvK0
Prototype: Declarative Link Capturing for PWAs
- https://groups.google.com/a/chromium.org/g/blink-dev/c/2ZnA1IrSpS8
Prototype: OffscreenCanvas
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/4Fh79qw7mV0
Prototype and Ship: self.structuredClone
- https://groups.google.com/a/chromium.org/g/blink-dev/c/qerisCd3Qmo
Ship: CSS Color Adjust: 'only' keyword for color-scheme
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Et7c6cWND3Q
Ship: WebRTC Scalable Video Coding extensions
- https://groups.google.com/a/chromium.org/g/blink-dev/c/XzygOFuas2A
Ship: auto keyword for contain-intrinsic-size
- https://groups.google.com/a/chromium.org/g/blink-dev/c/TNggXYeJEQs
Ship: forced-color-adjust: preserve-parent-color
- https://groups.google.com/a/chromium.org/g/blink-dev/c/zEDgmKsyjTY
Ship: AudioContext.outputLatency
- https://groups.google.com/a/chromium.org/g/blink-dev/c/dTQniJNVVMY/m/hPFwY1fbBQAJ
Ship: New window.open() popup vs. window behavior
- https://groups.google.com/a/chromium.org/g/blink-dev/c/q6ybnmxxvpE/m/2snoh6wkAgAJ
Ship: Remove font-family -webkit-standard
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Cled-obRi6M/m/O1OzCtVfBwAJ
Ship: Pickling for Async Clipboard API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/k2rgX-4Cigc/m/P0RijrpzBAAJ
Ship: Propagate request origin and redirect chain in passthrough service workers.
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Ioyd2SfcqCI/m/tlIS4cZLBgAJ
- これまでは SW で fetch(e.request) したら、リダイレクトでも Origin が SW の Origin になった。
- Origin ヘッダと SameSite Cookie の挙動を正すためにこれを直す。
Ship: Private Network Access preflight requests for subresources
- https://groups.google.com/a/chromium.org/g/blink-dev/c/72CK2mxD47c/m/Tl59oNfABwAJ
- Private Network に対する subresource request に preflight を必須にする
- 展開のフェーズは 4 段階
- 1: Preflight を送るが結果は無視しエラー表示、本来のリクエストも送る。
- 2: 3 リリース様子見
- 3: Preflight の結果を遵守。かつ deprecation trial を開始。
- 4: 4 リリース後に deprecation trial を終了
Ship: Convert adoptedStyleSheets to use ObservableArray
- https://groups.google.com/a/chromium.org/g/blink-dev/c/8p7QvGn3Ezo/m/j-nO6azUBwAJ
Ship: CSS cascade layers
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ZCN2tBZ2cUY/m/BQAcIIjFCAAJ
- @layer {} block を定義し、CSS のブロックをレイヤーに分けられるように
- @layer rule でレイヤーの優先順位を決められる
- カスケードはレイヤー内で行われ、別の(優先度の低い)レイヤーによる意図しない上書きを予防できるようになる
- Gecko: In development
- WebKit: Shipped/Shipping
- Web developers: Strongly positive
Ship: Sec-CH-UA-Full-Version-List user-agent client hint
- https://groups.google.com/a/chromium.org/g/blink-dev/c/yZh8Lwr34Ro
- https://github.com/WICG/ua-client-hints/issues/196
- major version 以下のシリアライズ方法(桁数)がブランドによるので全部必要な場面がある
Ship: Pickling for Async Clipboard API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/k2rgX-4Cigc
Ship: Supports keyword format in @font-face src descriptor
- https://groups.google.com/a/chromium.org/g/blink-dev/c/19baTRo2v4M
Ship: Allow infinity, -infinity and NaN in CSS calc()
- https://groups.google.com/a/chromium.org/g/blink-dev/c/C-qitIHpE9o/m/sII-53WYDAAJ
Ship: replace GamepadList with sequence for navigator.getGamepads() return value
- https://groups.google.com/a/chromium.org/g/blink-dev/c/JG5ffk-itJk/m/nW0u1WxmDAAJ
Ship: Handwriting Recognition API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/s3n3bGl6i1M/m/-WWoNcZTDAAJ
- Question about Shipping vs Continue Experimenting
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/OXnXteNYQQQ
Ship: Intl Enumeration API (for m99)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/I0Y4FrRMNSY/m/XIN_fgA5DAAJ
Ship: Intl Locale Info in ECMA402 (for m99)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/4ZMt5ukQNRs/m/0flHnuaBBgAJ
Experiment: Web app launch handler
- https://groups.google.com/a/chromium.org/g/blink-dev/c/wNOClobsLrs
Experiment: Dark mode support for web apps
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ftoKq32Baz4/m/MWjC841eDAAJ
Experiment: Intl Enumeration API (for m99)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/EI0musnzc-I/m/9ZLVatQ4DAAJ
Extend Origin Trial: Subresource loading with Web Bundles
- https://groups.google.com/a/chromium.org/g/blink-dev/c/lv2JQjDdyhM
Extent Origin Trial: WebGPU
- https://groups.google.com/a/chromium.org/g/blink-dev/c/l-QcZ7qOcUQ
Deprecate: Standardize existing client hint naming
- https://groups.google.com/a/chromium.org/g/blink-dev/c/TjLu0NSvSL8
Deprecate and Remove: Calling PaymentRequest.show without user activation
- https://groups.google.com/a/chromium.org/g/blink-dev/c/xCW746n6XJI/m/KYIdsFteCAAJ
Request for (Extending) Deprecation Trial: [WebRTC] Deprecate and Remove Plan B
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Zyvaa5VNijg/m/tAgoASxRBAAJ

V8

WebAssembly Dynamic Tiering ready to try in Chrome 96 · V8
- https://v8.dev/blog/wasm-dynamic-tiering
Oilpan library · V8
- https://v8.dev/blog/oilpan-library

Other

web.dev
- Everything announced at Chrome Dev Summit 2021
  - https://web.dev/cds2021-updates/
  - Make the web more interoperable #
  - Allow new classes of applications to run on the web #
  - Ensure privacy #
  - Improve Core Web Vitals #
  - Enable new web platform features #
  - Help you to create beautiful and responsive sites #
  - Provide courses to help you learn web technology #
- What's new in PageSpeed Insights
  - https://web.dev/whats-new-pagespeed-insights/
- Lighthouse user flows
  - https://web.dev/lighthouse-user-flows/
- Towards an animation smoothness metric
  - https://web.dev/smoothness/
- Feedback wanted: An experimental responsiveness metric
  - https://web.dev/responsiveness/
- Picking colors of any pixel on the screen with the EyeDropper API
  - https://web.dev/eyedropper/
- Building an effective Image Component
  - https://web.dev/image-component/
- Photoshop's journey to the web
  - https://web.dev/ps-on-the-web/
- The UI fund
  - https://web.dev/ui-fund/
- SVGcode: a PWA to convert raster images to SVG vector graphics
  - https://web.dev/svgcode/
- Building a 3D game menu component
  - https://web.dev/building-a-3d-game-menu-component/
- Kapwing: Powerful video editing for the web
  - https://web.dev/kapwing/
- Building a toast component
  - https://web.dev/building-a-toast-component/
google developer blog
- Google Developers Blog: Improve your development workflow with Interactive Canvas DevTools
  - https://developers.googleblog.com/2021/11/improve-your-development-workflow-with-interactive-canvas-devtools.html
google developer japan blog
- Google Developers Japan: OS ログイン時に PWA を起動する
  - https://developers-jp.googleblog.com/2021/11/os-pwa.html
- Google Developers Japan: Chrome の検索、ブラウズ、シャットダウン時のパフォーマンスを改善
  - https://developers-jp.googleblog.com/2021/11/chrome-performance-improvements.html
- Google Developers Japan: Chrome 96: 条件に応じたフォーカスや優先度ヒントなどの新機能
  - https://developers-jp.googleblog.com/2021/11/chrome-96.html
- Google Developers Japan: Payment Request API で "basic-card" 支払い方法の提供が終了
  - https://developers-jp.googleblog.com/2021/11/payment-request-api-basic-card.html
- Google Developers Japan: Google OAuth の段階的な認証の改善について
  - https://developers-jp.googleblog.com/2021/11/google-oauth.html
- Google Developers Japan: Chrome OS での Chrome アプリのサポートを延長
  - https://developers-jp.googleblog.com/2021/11/chrome.html
chrome developer blog
- Force Chrome major version to 100 in the User-Agent string - Chrome Developers
  - https://developer.chrome.com/en/blog/force-major-version-to-100/
- Progress in the Privacy Sandbox (October 2021) - Chrome Developers
  - https://developer.chrome.com/en/blog/progress-in-the-privacy-sandbox-2021-10/
- Implementing CSP and Trusted Types debugging in Chrome DevTools - Chrome Developers
  - https://developer.chrome.com/en/blog/csp-issues/
- Helping developers build powerful, installable web apps - Chrome Developers
  - https://developer.chrome.com/en/blog/pwa-install-features/
- What's new in Lighthouse 9.0 - Chrome Developers
  - https://developer.chrome.com/en/blog/lighthouse-9-0/
chromium blog
- Chromium Blog: Chrome Dev Summit 2021: Moving toward a more powerful and private web
  - https://blog.chromium.org/2021/11/chrome-dev-summit-2021-moving-toward.html
- Chromium Blog: Run on OS Login
  - https://blog.chromium.org/2021/11/run-on-os-login.html
- Chromium Blog: Searching, browsing, and shutdown Chrome performance improvements
  - https://blog.chromium.org/2021/11/searching-browsing-shutdown-chrome-performance-improvements.html
- Chromium Blog: Chrome on Windows performance improvements and the journey of Native Window Occlusion
  - https://blog.chromium.org/2021/12/chrome-windows-performance-improvements-native-window-occlusion.html
- Chromium Blog: Faster Chrome - Let The Compiler do the work
  - https://blog.chromium.org/2021/12/faster-chrome-let-the-compiler-do-the-work.html
- Chromium Blog: Simplified Storage Controls
  - https://blog.chromium.org/2021/11/simplified-storage-controls.html
- Chromium Blog: Partitioning Chrome's Code for Faster Launch Times on Android
  - https://blog.chromium.org/2021/11/chrome-android-faster-launch-times-less-memory.html
search central
- 2021 年におけるモバイルインデックス登録に関する最新情報 | Google 検索セントラルブログ | Google Developers
  - https://developers.google.com/search/blog/2021/11/update-on-mobile-indexing
- Google 検索セントラル 1 周年 | Google 検索セントラルブログ | Google Developers
  - https://developers.google.com/search/blog/2021/11/one-year-of-search-central
- パソコン向けページエクスペリエンスによるランキングの導入スケジュール | Google 検索セントラルブログ | Google Developers
  - https://developers.google.com/search/blog/2021/11/bringing-page-experience-to-desktop
canary
- https://www.chromium.org/getting-involved/dev-channel
Introducing Bento - The AMP Blog
- https://blog.amp.dev/2021/12/08/introducing-bento/
- <bento-fit-text>Hello World!</bento-fit-text> | bentojs.dev
- https://bentojs.dev/blog/introducing-the-bento-components-library/
BlinkOn 15

Firefox 動向

Stable: 95.0

Updates

Firefox 94.0, See All New Features, Updates and Fixes
- https://www.mozilla.org/en-US/firefox/94.0/releasenotes/
Firefox 94 for developers - Mozilla | MDN
- https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/94
- self.structuredClone()
- element.enterKeyHint
- script.supports()
- ShadowRoot.delegatesFocus
Firefox Beta 95.0, See All New Features, Updates and Fixes
- https://www.mozilla.org/en-US/firefox/95.0/releasenotes/
- Slack のコール機能を動かすために slack.com に UA Sniffing を導入
  - Mozilla/5.0 (Windows NT 10.0; Win64; x64) FxQuantum/58.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
  - 通常は Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0
- Fission のロールアウト
Firefox 95 for developers - Mozilla | MDN
- https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/95
- crypto.randomUUID()
These Weeks in Firefox: Issue 103 - Firefox Nightly News
- https://blog.nightly.mozilla.org/2021/11/10/these-weeks-in-firefox-issue-103/
These Weeks in Firefox: Issue 104 - Firefox Nightly News
- https://blog.nightly.mozilla.org/2021/11/18/these-weeks-in-firefox-issue-104/
These Weeks in Firefox: Issue 105 - Firefox Nightly News
- https://blog.nightly.mozilla.org/2021/12/07/these-weeks-in-firefox-issue-105/

Intents

Prototype and Ship: AnimationFrameProvider for DedicatedWorkerGlobalScope
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/cYJTSbMxFCg
Prototype and ship: hwb() colors
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/929YVWNQsY0
Prototype: OffscreenCanvas
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/4Fh79qw7mV0/m/KZHhvHCkCgAJ
Ship: Cookie "SameSite=Lax by default", "SameSite=None only if secure" and "Schemeful SameSite"
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/6PZtLH7c6JQ
Ship: CSS page-size
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/fk6UBxxgnII
Ship: Partitioned Third-party ServiceWorker in dFPI
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/-ReVw4IGhaw
Ship: inputmode attribute on Firefox Desktop
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/tlnhpsvhp64
Ship: Web Locks
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/Vfe_V9_KvNg
Ship: CSS reversed() counters
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/Holnk7wDCOk
Unship: SVGPathSeg APIs
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/6TrOO8yxlwo
Unship: Alt-a works as "Select All" on Linux
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/UnuAphNfcK8
Engineering Effectiveness Newsletter (November 2021 Edition)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/iA1PcfXiqNQ
Firefox Security & Privacy Newsletter 2021 Q3
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/5RpuDK2tySk

Other

Engineering Effectiveness Newsletter (October 2021 Edition)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/TxaBV-CSGqI
There's more than one way to browse on mobile with Firefox and Firefox Focus
- https://blog.mozilla.org/en/products/firefox/firefox-focus-or-firefox/
Firefox brings you a new homepage making it easier to jump back in to the stuff you care about on your mobile devices
- https://blog.mozilla.org/en/mozilla/news/firefox-brings-you-a-new-homepage/
Announcing Firefox 94 New Colorways Themes
- https://blog.mozilla.org/en/products/firefox/introducing-new-colorways-for-firefox-94/
Mozilla's Firefox named in inaugural Brands That Matter
- https://blog.mozilla.org/en/mozilla/mozillas-firefox-named-in-inaugural-brands-that-matter/
- https://www.fastcompany.com/brands-that-matter/2021
- Brands That Matter 2021 に Firefox がノミネートされた
Tired of spam? A burner email account could be the answer.
- https://blog.mozilla.org/en/products/firefox/burner-email-firefox-relay/
Announcing Slate & Pocket Partnership Slow Burn Season 6
- https://blog.mozilla.org/en/products/pocket/slate-pocket-partnership-slow-burn-season-6/
Hacked Story of Real Estate Scam & Online Security Tips
- https://blog.mozilla.org/en/internet-culture/hacked-real-estate-scam/
Securing the proxy API for Firefox add-ons - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/10/25/securing-the-proxy-api-for-firefox-add-ons/
Finding and Fixing DOM-based XSS with Static Analysis - Attack & Defense
- https://blog.mozilla.org/attack-and-defense/2021/11/03/finding-and-fixing-dom-based-xss-with-static-analysis/
Introducing Firefox Relay Premium, allowing more aliases to protect your identity from spammers
- https://blog.mozilla.org/en/mozilla/firefox-relay-and-premium-service/
Firefox's Private Browsing mode upleveled for you
- https://blog.mozilla.org/en/mozilla/firefoxs-private-browsing-mode-upleveled-for-you/
WebAssembly and Back Again: Fine-Grained Sandboxing in Firefox 95 - Mozilla Hacks - the Web developer blog
- https://hacks.mozilla.org/2021/12/webassembly-and-back-again-fine-grained-sandboxing-in-firefox-95/

Safari 動向

Stable: 15.1

Updates

New WebKit Features in Safari 15
- https://webkit.org/blog/11989/new-webkit-features-in-safari-15/
- Web Extensions
- HTML
  - theme-color
- CSS
  - aspect-ratio
  - Color Level 4
  - new list-style-type
- Web Inspector
- JavaScript and WebAssembly
  - support for top-level await
  - Error.cause
  - private class methods and accessors
  - BigInt64Array and BigUint64Array
- Web APIs
  - WebGL2
  - Web Share API
  - requestAnimationFrame
  - performance.timeOrigin
- Media
  - Opus in WebM
  - VP9 and WebM in MSE
  - MediaSession API to Share Play
- Security and Privacy
  - automatic HTTPS upgrade
  - hide IP from known trackers
  - updates to Private Click Measurement
- Authentication and Passwords
  - autocomplete=one-time-code
  - apple-otpauth:
  - otpauth QR code
  - Secure login with iCloud Keychain verification codes
- Payments
  - Payment Request API
Release Notes for Safari Technology Preview 134
- https://webkit.org/blog/12033/release-notes-for-safari-technology-preview-134/
- CSS
  - Unprefixed -webkit-appearance and added support for the auto value (r283858, r284098)
  - Added support for the x resolution unit outside of image-set (r282396)
  - Added support for text-decoration-skip-ink (r282397)
- Fonts
  - Added parsing support for font-palette-values (r282806)
  - Added parsing support for font-palette (r282851)
  - Added pushing font-palette-values data into CSSFontSelector (r282838)
  - Added support for CSSFontPaletteValuesRule.name (r283140)
  - Added Web Inspector support for font-palette (r282987)
  - Allowed base-palette can accept "light" or "dark" (r283398)
- Scrolling
  - Enabled support for ScrollOptions' ScrollBehavior and CSS scroll-behavior properties (r284029)
- Rendering
  - Enabled 2D canvas color space support on Apple platforms (r283541)
  - Updated converting an SVG image for canvas drawImage to choose an appropriate color space (r283531)
- Dialog Element
  - The <dialog> element is now enabled by default (r284155), also including:
    - support for the CSS ::backdrop pseudo element
    - support for the top layer
    - <form method="dialog"> support
  - The inert attribute is available for testing behind an experimental flag with the same name
- WebAssembly
  - Allowed WASM to use up to 4GB (r284330)
  - Implemented the WebAssembly exception handling proposal (r283852)
- JavaScript
  - Enabled unlinked Baseline JIT for performance (r283139)
- Web API
  - Enabled BroadcastChannel (r282426)
  - Implemented top-origin and frame-origin partitioning for BroadcastChannel (r282366)
  - Enabled Storage API by default (r284273)
  - Enabled FileSystemAccess and AccessHandle by default (r284131)
  - Implemented FileSystemSyncAccessHandle read() and write() (r284059)
  - Implemented the borderBoxSize and contentBoxSize parts of ResizeObserver (r282441)
  - Implemented CSP script-src-elem, style-src-elem, script-src-attr and style-src-attr directives (r284254)
- WebRTC
  - Added support for WebRTC media capabilities (r284085, r284236)
  - Changed MediaCapabilities to enqueue a task to resolve promises (r284236)
- Accessibility
  - Exposed the URL attribute of <video> elements (r283799)
  - Made PDFs loaded via <embed> accessible (r282358)
- Private Click Measurement
  - Allowed measurement of links in nested, cross-site iframes (r283593)
- Web Extensions
  - Allowed more directives to be included in the content_security_policy of an extension's manifest, such as the sandbox directive
Release Notes for Safari Technology Preview 135
- https://webkit.org/blog/12040/release-notes-for-safari-technology-preview-135/
- CSS
  - Media queries affect Cascade Layer order (r284859)
  - Enabled accent-color by default (r284634)
  - Added support for small svw/svh/svmin/svmax, large lvw/lvh/lvmin/lvmax, and dynamic dvw/dvh/dvmin/dvmax viewport units (r284628)
  - Added flex-basis: content support (r284440)
  - Added support for contain: style for counters (r284642, r284755)
  - Added support for ::before and ::after pseudo elements after ::slotted (r284973)
  - Added support for more CSS properties for ::marker (r284519)
  - Allowed :is and :where after all pseudo elements (r285054)
  - Made :-webkit-any() a synonym of :is() (r285032)
- WebAPI
  - Enabled lazy image loading by default (r284995)
  - Added support for rel="noopener/noreferrer" on <form> elements (r284749)
  - Exposed MediaCapabilities to Workers (r284443)
- Media
  - Added support for requestVideoFrameCallback API for MediaStreamTrack-based backends (r284528)
Release Notes for Safari Technology Preview 136
- https://webkit.org/blog/12137/release-notes-for-safari-technology-preview-136/
- CSS
  - Added support for contain: paint (r285583)
  - Added support for the revert-layer value (r285624)
  - Added flex-basis: content support (r285709)
  - Implemented Scroll To Text Fragment directive parsing (r285528)
- JavaScript
  - Implemented IntlNumberFormat v3 (formatRangeToParts is not implemented yet) (r285418)
  - Implemented Temporal.Instant (r285178)
- Web API
  - Implemented custom element definition's disable shadow flag (r285740)
- Media
  - Fixed showing languages and subtitles tracks button and menu for <audio> (r285216)
- Web Animations
  - Added support for composite operations for software animations (r285397)
- WebAuthn
  - Implemented add_virtual_authenticator and remove_virtual_authenticator for WebDriver (r285267)
- Web Extensions
  - Added support for manifest_version 3 and service_worker background scripts, while also supporting the option of using non-persistent background pages
  - Added support for script and style injection via the browser.scripting APIs
  - Added support for dynamic and session rules via the browser.declarativeNetRequest APIs
PCM for In-App Direct Response Advertising
- https://webkit.org/blog/12042/pcm-for-in-app-direct-response-advertising/

Position

https://lists.webkit.org/pipermail/webkit-dev/
いくつかあるが返事は無し

Other

Enable :focus-visible pseudo-class by default
- https://trac.webkit.org/changeset/286783/webkit

Edge 動向

Stable: 96

Updates

Previewing Citations in Microsoft Edge
- https://blogs.windows.com/msedgedev/2021/11/04/preview-citations-feature-edge/
Microsoft Edge celebrates customers moving to IE mode, Linux, and new search innovations
- https://blogs.windows.com/msedgedev/2021/11/02/edge-ignite-nov-2021/
Microsoft Edge features help give you the most out of Microsoft 365 to reduce the pain of context switching
- https://blogs.windows.com/msedgedev/2021/10/28/microsoft-edge-features-microsoft-365-reduce-pain-context-switching/
Debug memory leaks with the Microsoft Edge Detached Elements tool
- https://blogs.windows.com/msedgedev/2021/12/09/debug-memory-leaks-detached-elements-tool-devtools/
Cloud Site List Management experience for IE mode in Microsoft Edge now generally available
- https://blogs.windows.com/msedgedev/2021/12/07/cloud-site-list-management-experience-for-ie-mode-in-microsoft-edge-now-generally-available/

Chakra

Other

<第一弾> Developer Support Internet (DSI) ってどのような製品の技術サポートをしているの? | Japan Developer Support Internet Team Blog
- https://jpdsi.github.io/blog/general/career1-dsi-technologies/
<第二弾> インターンから見た Microsoft と Developer Support Internet (DSI) チーム (2021) | Japan Developer Support Internet Team Blog
- https://jpdsi.github.io/blog/general/career2-intern-experience/
Introducing transparent ads in Microsoft Edge Preview - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/articles/introducing-transparent-ads-in-microsoft-edge-preview/m-p/3035970#M6283
Introducing Buy now, pay later in Microsoft Edge - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/articles/introducing-buy-now-pay-later-in-microsoft-edge/m-p/2967030#M6024
Microsoft Edge's Many Processes - text/plain
- https://textslashplain.com/2021/12/01/microsoft-edges-many-processes/
Great Bug Reports via "Recreate My Problem" in Microsoft Edge - text/plain
- https://textslashplain.com/2021/12/01/great-bug-reports-via-recreate-my-problem-in-microsoft-edge/
View-Source - text/plain
- https://textslashplain.com/2021/11/11/view-source/
Edge に「Chrome のダウンロードを中止するように必死で促す新機能」が追加、実際の画面はこんな感じ - GIGAZINE
- https://gigazine.net/news/20211203-edge-chrome/

WHATWG/W3C 動向

TPAC

TPAC 2021: Overview
- https://www.w3.org/2021/10/TPAC/Overview.html
- 10/12: AC meeting (member-only)
- 10/18 - 22: breakout sessions, social events
  - https://web-eur.cvent.com/event/2b77fe3d-2536-467d-b71b-969b2e6419b5/websitePage:efc4b117-4ea4-4be5-97b4-c521ce3a06db
  - State of CSS 2021
    - https://docs.google.com/presentation/d/1FIMa9TXTdGusG_oJBtMmQLSyOuF0xgHsrvn7CKZH7Yw/edit?resourcekey=0-cFnhzvjncEEQaOB426PXnw#slide=id.gf91e504777_0_292
  - WebViews - Making WebViews Work for the Web
    - https://www.w3.org/2021/Talks/dhm-tpac-webviews/
  - TPAC_2021_breakout_WebRTC - NV Use cases
    - https://lists.w3.org/Archives/Public/www-archive/2021Oct/att-0003/TPAC_2021_breakout_WebRTC_-_NV_Use_cases.pdf
  - focusgroup_toggle_and_tabs.pdf
    - https://lists.w3.org/Archives/Public/www-archive/2021Oct/att-0005/focusgroup_toggle_and_tabs.pdf
- 10/25 - 29: group & joint meetings
  - https://web-eur.cvent.com/event/2b77fe3d-2536-467d-b71b-969b2e6419b5/websitePage:efc4b117-4ea4-4be5-97b4-c521ce3a06db
  - Second Screen WG/CG - TPAC 2021 agenda · Issue #3 · w3c/secondscreen-wg
    - https://github.com/w3c/secondscreen-wg/issues/3
    - Multi-Screen WIndow Placemnet
    - Remote Playback
  - Agenda TPAC2021 · w3c/webpayments Wiki
    - https://github.com/w3c/webpayments/wiki/Agenda-TPAC2021
    - Secure Payment Confirmation
    - SPC w/ WebAuthN
    - w/ PING
    - Digital Goods API
  - WebPerf WG @ TPAC 2021 - Google ドキュメント
    - https://docs.google.com/document/d/1GQpM8IvL4feXQ0oQdCQIPKhZZkMLNTYJQhBUntMxPkI/edit#heading=h.odc700in1ypg
    - めっちゃいっぱい
  - TPAC 2021 · w3c/webappswg Wiki
    - https://github.com/w3c/webappswg/wiki/TPAC-2021
  - TPAC 2021 - Web Real-Time Communications Working Group Wiki
    - https://www.w3.org/2011/04/webrtc/wiki/TPAC_2021#Joint_WebRTC.2FMedia.2FAudio_WG_Meeting
  - WebTransport/TPAC 2021 - W3C Wiki
    - https://www.w3.org/wiki/WebTransport/TPAC_2021
    - Multicast Group との discussion
  - Networks/TPAC2021 - W3C Wiki
    - https://www.w3.org/wiki/Networks/TPAC2021
  - TPAC 2021 initial planning - Cognitive Accessibility Task Force
- 10/18 - 29: expo space
- 10/18 - 29: networking
- webappsec/2021-10-19-minutes.md at main · w3c/webappsec
  - https://github.com/w3c/webappsec/blob/main/meetings/2021/2021-10-19-minutes.md
  - TPAC とは別?
  - CSP の話をしている
- webappsec/2021-11-16-agenda.md at main · w3c/webappsec
  - https://github.com/w3c/webappsec/blob/main/meetings/2021/2021-11-16-agenda.md
  - XS-Leaks summit の話

Draft

Recommendation
- ARIA in HTML is a W3C Recommendation
  - https://www.w3.org/blog/news/archives/9367
Proposed Recommendation
Candidate Recommendation
- W3C Invites Implementations of CSS Scrollbars Styling Module Level 1
  - https://www.w3.org/blog/news/archives/9370
- W3C Invites Implementations of User Timing and Performance Timeline
  - https://www.w3.org/blog/news/archives/9353
Working Draft
First Public Working Draft
- First Public Working Draft: MiniApp Packaging
  - https://www.w3.org/blog/news/archives/9346
- First Public Working Draft: Digital Publishing Accessibility API Mappings 1.1
  - https://www.w3.org/blog/news/archives/9349
Chartering
- Proposed W3C Charter: Web Payments Working Group
  - https://lists.w3.org/Archives/Public/public-new-work/2021Nov/0009.html
- Proposed W3C Charter: Accessible Rich Internet Applications Working Group
  - https://lists.w3.org/Archives/Public/public-new-work/2021Nov/0008.html
- HTML Working Group Charter extended until 31 January 2022
  - https://lists.w3.org/Archives/Public/public-new-work/2021Nov/0005.html
- Call for Prior Art - Second Screen Working Group PAG
  - https://www.w3.org/blog/news/archives/9355

Other

The WHATWG Blog - New Living Standards
- https://blog.whatwg.org/new-living-standards-2021
- WHATWG で管理する仕様に以下の 4 つが追加
- Web IDL Standard
  - https://webidl.spec.whatwg.org/
- Test Utils Standard
  - https://testutils.spec.whatwg.org/
- WebSockets Standard
  - https://websockets.spec.whatwg.org/
- New standard: File System · Issue #176 · whatwg/sg
  - https://github.com/whatwg/sg/issues/176
W3C opens Technical Architecture Group (TAG) election | W3C News
- https://www.w3.org/blog/news/archives/9338
- Statements about TAG nominees for 2021 Election
  - https://www.w3.org/2021/11/16-tag-nominations
Interoperability Remedies Community Group
- https://interop-remedies-cg.github.io/
- Interoperability Remedies Community Group Charter
- https://interop-remedies-cg.github.io/charter.html

TC39 動向

Meeting

2021-11

Proposals Diff

https://github.com/tc39/proposals/compare/master@{2021-11-01}...master@{2021-12-11}
https://tc39.github.io/beta/
0->1
- String.cooked
- Bind this operator
- Evaluator Attributes
- RegExp Modifiers
- RegExp Extended Mode and Comments
- RegExp \R Escape
- RegExp Buffer Boundaries
1->2
- Array Grouping
- Destructure Private Fields
2->3
3->4
- Error Cause

New Proposals

tc39/proposal-function-helpers
- https://github.com/tc39/proposal-function-helpers
- lodash 的なやつ
tc39/proposal-destructuring-private
- https://github.com/tc39/proposal-destructuring-private
- const {#foo: foo} = this する
FrankYFTang/proposal-intl-segmenter-v2
- https://github.com/FrankYFTang/proposal-intl-segmenter-v2
tc39/proposal-regexp-modifiers: Regular Expression Pattern Modifiers for ECMAScript
- https://github.com/tc39/proposal-regexp-modifiers
tc39/proposal-regexp-x-mode
- https://github.com/tc39/proposal-regexp-x-mode
tc39/proposal-regexp-r-escape: Regular Expression \R Escape for ECMAScript
- https://github.com/tc39/proposal-regexp-r-escape
tc39/proposal-regexp-buffer-boundaries
- https://github.com/tc39/proposal-regexp-buffer-boundaries

Other

IETF 動向

WG

IETF112
- https://datatracker.ietf.org/meeting/
httpwg
- https://lists.w3.org/Archives/Public/ietf-http-wg/
- https://github.com/httpwg/wg-materials/
- HTTP PREVIEW method
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0169.html
- HTTP Signatures Playground
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0164.html
- Digest Fields: removing id- algorithms
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0124.html
- I-D Action: draft-ietf-httpbis-binary-message-00.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0167.html
- I-D Action: draft-ietf-httpbis-http2bis-06.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0159.html
- I-D Action: draft-ietf-httpbis-priority-10.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0156.html
- I-D Action: draft-ietf-httpbis-digest-headers-07.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0146.html
- Publication has been requested for draft-ietf-httpbis-targeted-cache-control-02
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0147.html
- Publication has been requested for draft-ietf-httpbis-priority-09
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0130.html
- Working Group Last Call: Digest Fields
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0148.html
- Last Call: (Extensible Prioritization Scheme for HTTP) to Proposed Standard from The IESG
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0144.html
- Last Call: (Hypertext Transfer Protocol Version 2 (HTTP/2)) to Proposed Standard from The IESG
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0137.html
- extensible prioritization scheme review
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0153.html
- Hold the Date: February 2022 Interim Meeting
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0149.html
  - February 1, 21:00-23:00 UTC
  - February 3, 21:00-23:00 UTC
quicwg
- https://mailarchive.ietf.org/arch/browse/quic/
- https://github.com/quicwg/wg-materials
- Multipath Extension for QUIC @ IETF-112, Nov 10, 2021
  - https://datatracker.ietf.org/meeting/112/materials/slides-112-quic-unified-multipath-quic-extension-00
- QUIC Version 2
  - https://www.ietf.org/archive/id/draft-ietf-quic-v2-00.html
webtrans
tlswg
- https://mailarchive.ietf.org/arch/browse/tls/
- https://github.com/tlswg/wg-materials
wpack
- WPACK@IETF112
  - https://datatracker.ietf.org/meeting/112/materials/slides-112-wpack-wpack-chairs-slides-ietf112-00
  - Bundle Preload と WebBundle をマージしようという話
- slides-112-wpack-bundle-preload-00
  - https://datatracker.ietf.org/meeting/112/materials/slides-112-wpack-bundle-preload-00
- Web Bundles and Bundle Preloading (2 つの仕様の差分)
  - https://docs.google.com/document/d/1VxmJv41ZsyPLGxI0Dm4qalyEBZBPEn2sTs1eYTmA4Sc/edit#heading=h.6kknmf22ixwc
httpapi
- Query Method
  - https://datatracker.ietf.org/meeting/112/materials/minutes-112-httpapi-00
  - httpapi ができる前から httpwg でやってたのでそのままだけど、本来は httpapi なのでこっちで mnot が紹介的な?
masque
- HTTP Dgram Priorities IETF 112
  - https://datatracker.ietf.org/meeting/112/materials/slides-112-masque-http-datagram-priorities-00
  - QUIC で Datagram をする API の H3 版である Datagram における priority
pearg
privacypass
dispatch
- DISPATCH Virtual Meeting @IETF-112 - HedgeDoc
  - https://datatracker.ietf.org/meeting/112/materials/minutes-112-dispatch-00
  - Secure Credential Transfer
  - iCloud で WebAuthN の鍵共有みたいなケースの標準化
secdispatch
- https://mailarchive.ietf.org/arch/browse/secdispatch/
ohai
- OHTTP
  - ietf112-ohai-chairs-slides
    - https://datatracker.ietf.org/meeting/112/materials/slides-112-ohai-chair-slides-00
  - WG ができて初めてのセッションなのでご紹介
  - Oblivious HTTP
    - https://www.ietf.org/archive/id/draft-ietf-ohai-ohttp-00.html
priv
- ユースケースなどの出し合い BoF
  - https://datatracker.ietf.org/meeting/112/materials/minutes-112-priv-02
other
- Private Access Tokens
  - https://www.ietf.org/archive/id/draft-private-access-tokens-01.html
  - Trust Token の簡単なやつ well-known で pub key 公開するやつ
- Avoiding Internet Centralization
  - https://www.ietf.org/archive/id/draft-nottingham-avoiding-internet-centralization-00.html

Other

CDN 動向

Cloudflare

Cloudflare blocks an almost 2 Tbps multi-vector DDoS attack
- https://blog.cloudflare.com/cloudflare-blocks-an-almost-2-tbps-multi-vector-ddos-attack/
- Mirai による 2Tbps の DDoS を検出し軽減した話
- DNS amplification と UDP floods の組み合わせ
- 15000 の IoT デバイスとパッチの当たってない GitLab から
- 最近はネットワーク層の DDoS がトレンドで 44% 増加している
How Cloudflare security responded to log4j2 vulnerability
- https://blog.cloudflare.com/how-cloudflare-security-responded-to-log4j2-vulnerability/
Inside the log4j2 vulnerability (CVE-2021-44228)
- https://blog.cloudflare.com/inside-the-log4j2-vulnerability-cve-2021-44228/
CVE-2021-44228 - Log4j RCE 0-day mitigation
- https://blog.cloudflare.com/cve-2021-44228-log4j-rce-0-day-mitigation/

Fastly

30 years of the website: meeting the demands of the future | Fastly
- https://www.fastly.com/blog/30-years-of-the-website-meeting-the-demands-of-the-future
Web サイトの 30 年 : 未来に向けた Web アプリケーションの構築 | Fastly
- https://www.fastly.com/jp/blog/30-years-of-the-website-building-web-applications-for-the-future
Web サイトの 30 年 : より安全な Web の未来に向けて | Fastly
- https://www.fastly.com/jp/blog/30-years-of-the-website-securing-the-future-of-the-web
ウェブサイトの 30 年:次の 30 年を構築するための 5 つのレッスン|速く
- https://www.fastly.com/blog/30-years-of-the-website-five-lessons-for-building-the-next-30-years
Digging deeper into Log4Shell - 0Day RCE exploit found in Log4j | Fastly
- https://www.fastly.com/blog/digging-deeper-into-log4shell-0day-rce-exploit-found-in-log4j

Other

セキュリティ動向

Exploiting CSP in Webkit to Break Authentication & Authorization
- https://threatnix.io/blog/exploiting-csp-in-webkit-to-break-authentication-authorization/
- Webkit の CSP バグを使って認証を盗む
- DEMO の動画あり

周辺動向

Sorry Safari team - Modern Web Development with Chrome by Paul Kinlan
- https://paul.kinlan.me/sorry-safari-team/
- Chrome Dev Summit で Compat 2021 の成果報告があった
- 3 ブラウザそれぞれでスコアが向上していたが、Safari だけ点数が低かった
  - 実は数ヶ月前の Safari TP でテストしていたことが判明
  - スコアの元になった web-platform-tests はインフラの都合上、新しい Safari TP を入れられていなかった
- public shaming として扱われて燃えてしまい、Paul Kinlan が謝罪
Top web developer pain points in 2021 - Modern Web Development with Chrome by Paul Kinlan
- https://paul.kinlan.me/top-web-developer-pain-points-in-2021/
- 米国、イギリスとインドの開発者に、Web 開発の難しいところについて 3 ヶ月ごとにアンケートをとった
- 上位 5 つの変化はそこまでなかった
  - Keeping up with changes to the web platform/web standards
  - Keeping up with a large number of new and existing tools or frameworks
  - Making a design/experience work the same across browsers
  - Testing across browsers
  - Understanding and implementing security measures
2021 Web Almanac
- https://almanac.httparchive.org/ja/2021/
Open Props: sub-atomic styles
- https://open-props.style/
- Adam Argyle によるユーティリティカスタムプロパティ集

イベント

12 月
- 14-15: TC39
  - https://github.com/tc39/agendas/blob/master/2021/12.md
1 月
2 月
- 1-3: HTTPBis Interim
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021OctDec/0149.html

Wrap Up

chrome
- 96
  - emulate version 100
  - bfcache default on desktop
- 97
  - WebTransport
  - scriptElement.support()
  - Array.findLast(), Array.findLastIndex()
- Prototype
  - capability delegation
  - input element showPicker()
  - blocking=rendering 属性
  - NFC.makeReadonly()
  - Set-Cookie の Domain="" を許容
- Ship
  - Request Origin / Redirect Chain
  - Private Network Access for Preflight
  - Cascade Layer
  - Sec-CH-UA-Full-Version-List
- CDS
  - animation smoothness metrics
  - resposiveness metrics
- web.dev
  - UI fund
- Search Central
  - Page Experience ranking to desktop rollout in Feb 2022
- Other
  - Bento.js (Bento AMP)
  - BlinkOn 15
Firefox
- 94
  - self.structuredClone()
  - scriptElement.supoorts()
- 95
  - site isolation rollout
  - crypto.randomUUID()
  - UA sniffing for slack.com
- Ship
  - SameSite=Lax by default
Safari
- 15.0
  - <meta name="theme-color">
  - aspect-ratio
  - top-level await
  - Error.cause
  - Private Class methods/accessors
  - WebGL2
  - autocomplete="one-time-code"
- TP 134
  - text-decoration-skip-ink
  - enable <dialog> by default
  - inert attribute behind flag
  - enable BroadCastChannel by default
  - enable Storage API + FileSystemAccess + AccessHandle by default
  - CSP script-src-elem, script-src-attr, etc.
- TP 135
  - enable accent-color by default
  - CSS small/large/dynamic viewport units
  - enable image lazy-loading by default
- TP 136
  - contain: paint
  - Scroll To Text Fragment parsing
  - manifest_version 3
- Other
  - enable :focus-visible by default
Edge
- Developer Support Internet team internship
- Recreate My Problem ボタンでバグレポート
WHATWG/W3C
- TPAC2021
  - Sate Of CSS 2021
  - Making WebViews Work for the Web
  - Cognitive Accessibility Task Force (COGA)
- XS-Leaks summit
- Aria Recommendation
- WHATWG New Living Standards
  - WebIDL
  - Test Utils
  - WebSocket
  - File System
- TAG Election
- Interoperability Remedies Community Group
TC39
- Error Cause stage 4
- tc39/proposal-function-helpers
- tc39/proposal-destructuring-private
- tc39/proposal-regexp-modifiers
IETF
- Publication request: draft-ietf-httpbis-targeted-cache-control-02
- Publication request: draft-ietf-httpbis-priority-09
- Working Group Last Call: Digest Fields
- Bundle Preload と WebBundle のマージ
- Secure Credential Transfer (iCloud のような鍵共有)
- Avoiding Internet Centralization
CDN
- Cloudflare
  - Mirai による 2Tbps の DDoS
- Fastly
  - log4j の脆弱性
周辺
- CDS の Compat2021 で Safari TP が古かったことを Paul Kinlan が謝罪
- Web Almanac 2021
- Open Props (css variables での css framework)