ep86 Monthly Web 202107

published_at: 2021-08-03
guest: @myakura
toc: headings

Theme
Show Note

Chrome 動向

Stable: 92
Updates
Intents
V8
Other

Firefox 動向

Stable: 90
Updates
Intents
Other

Safari 動向

Stable: 14.1.2
Updates
Position
Other

Edge 動向

Stable: 92
Updates
Chakra
Other

WHATWG/W3C 動向

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 86 回のテーマは 2021 年 7 月の Monthly Web です。

Show Note

Chrome 動向

Stable: 92

Updates

New in Chrome 91 - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-chrome-91/
- New in Chrome 91
  - Suggested names for File System Access API
  - Reading files from the clipboard
  - Share credentials on affiliated sites
What's New In DevTools (Chrome 92) - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-devtools-92/
- What's New In DevTools (Chrome 92)
  - CSS grid editor
  - Support for const redeclarations in the Console
  - Source order viewer
  - New shortcut to view frame details
  - Enhanced CORS debugging support
  - Network panel updates
    - Rename XHR label to Fetch/XHR
    - Filter Wasm resource type in the Network panel
    - User-Agent Client Hints for devices in the Network conditions tab
  - Report Quirks mode issues in the Issues tab
  - Include Compute Intersections in the Performance panel
  - Lighthouse 7.5 in the Lighthouse panel
  - Deprecated "Restart frame" context menu in the call stack
  - [Experimental] Protocol monitor
  - [Experimental] Puppeteer Recorder
Chromium Blog: Chrome 93: Multi-Screen Window Placement, PWAs as URL Handlers, and More
- https://blog.chromium.org/2021/07/chrome-93-multi-screen-window-placement.html
- Origin Trials
  - New Origin Trials
    - Cross-Origin-Embedder-Policy: credentialless
    - Multi-Screen Window Placement
    - Window Controls Overlay for Installed Desktop Web Apps
    - PWAs as URL Handlers
  - Completed Origin Trials
    - Subresource loading with Web Bundles
    - WebXR Plane Detection API
- Other features in this release
  - AbortSignal.abort() Static Method
  - CSS Flexbox: Support Alignment Keywords start, end, self-start, self-end, left, right
  - Error.cause Property
  - Honor Media HTML Attribute for meta name=theme-color
  - noplaybackrate in HTMLMediaElement.controlsList
  - Sec-CH-Prefers-Color-Scheme Client Hint Header
  - User-Agent Client Hints API Updates
  - WebOTP API: Cross-Device Support
- JavaScript
  - Object.hasOwn
- Deprecations, and Removals
  - Block ports 989 and 990
  - Remove 3DES in TLS
  - WebAssembly Cross-Origin Module Sharing
What's New In DevTools (Chrome 93) - Chrome Developers
- https://developer.chrome.com/en/blog/new-in-devtools-93/
- Editable CSS container queries in the Styles pane
- Web bundle preview in the Network panel
- Attribution Reporting API debugging
- Better string handling in the Console
- Improved CORS debugging
- Lighthouse 8.1
- Display new note URL in the Manifest pane
- Fixed CSS matching selectors
- Pretty-printing JSON responses in the Network panel

Intents

Ship: Clipboard API: Svg
- https://groups.google.com/a/chromium.org/g/blink-dev/c/KYN1ToIjCsM/m/blyE-F-bAQAJ
Ship: Scheduling APIs: Prioritized scheduler.postTask
- https://groups.google.com/a/chromium.org/g/blink-dev/c/snsxQeTSFHo/m/CughJ2NBAQAJ
Ship: SpeechSynthesis and SpeechSynthesisVoice interface objects
- https://groups.google.com/a/chromium.org/g/blink-dev/c/jFvTG8AJfnQ/m/Sfs4rZMQAQAJ
Ship: VirtualKeyboard API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/EF9fJTfqoGI/m/K2-QWCNxAgAJ
Ship: CSS @counter-style rules in shadow trees
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ruFLLkjvzwg/m/9aGteUUlAgAJ
Ship: preferCurrentTab
- https://groups.google.com/a/chromium.org/g/blink-dev/c/YoefXLTQsw0/m/NVoV6NcIAgAJ
- getDisplayMedia() でユーザに Tab, Window, Display を選ばせる際に、Tab を推奨するための属性を追加
- 別途 getViewportMedia() も提案されているがまだ策定初期段階なので属性を追加するもの
- getDisplayMedia() の仕様では「ソースの選択を制限するような実装をしてはいけない」という制約があるので、Moziila は harmful
Ship: Feature Policy: diplay-capture
- https://groups.google.com/a/chromium.org/g/blink-dev/c/pNPotQY92UY/m/thZ3h-zQAQAJ
- getDisplayMedia() のための Policy
- Safari/Firefox は実装済み
Ship: CSS Overflow scrollbar-gutter
- https://groups.google.com/a/chromium.org/g/blink-dev/c/71vtc_Xv7jk/m/EezoVS9dBQAJ
- Scroll Bar が表示されることで表示領域が狭まり Layout Shift が発生することがある
- Scroll Bar のための領域をコントロールする属性
- stable だと常に表示、both-edges だと両方に表示
Ship: Note taking new note URL
- https://groups.google.com/a/chromium.org/g/blink-dev/c/tZqSbhmxiGM/m/5iL3gWvpBAAJ
Ship: MediaStreamTrack Insertable Streams (a.k.a. Breakout Box)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/oo6MQoRbDXk/m/7Kjjfe9NAwAJ
Ship: Align transform-style: preserve-3d and perspective property with the spec
- https://groups.google.com/a/chromium.org/g/blink-dev/c/4LWMf_tZwtw
- preserve-3d を指定したときの重なりが DOM ではなくコンテナブロックになっていた
- 仕様が変わったので修正する
Ship: supports for the @font-face src: descriptor
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bCA9H3eaO3s
Ship: Idle Detection
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ZmHHfrR_jak
Ship: JS Self-Profiling API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/7K7Qt7aRJ8s
Prototype and Ship: flex-basis property honors keywords 'content' and 'min/max/fit-content'
- https://groups.google.com/a/chromium.org/g/blink-dev/c/lzcWR4Q97ik/m/GvFidwZtEwAJ
- CSS の幅や高さには px や em 以外にも min-content や max-content といったキーワードの値を指定できる
- flex-basis でそのキーワードを解釈するようにする
Prototype and Ship: New UA platform version source on Windows for User-Agent Client Hints
- https://groups.google.com/a/chromium.org/g/blink-dev/c/r0kcHYoK79U/m/uMoD0H8bBQAJ
- UA-CH における windows の version を細かくする
Prototype and Ship: Cookie size limits
- https://groups.google.com/a/chromium.org/g/blink-dev/c/0N5BePVCPVo
- 全 name, value 合計で 4096, 各 value を 1024 に制限する RFC6265bis でのスペックに準拠
- Chrome もすでに制限はあったが、ブラウザ間で差異があったのを修正する目的
Prototype: CORS non-wildcard request-header
- https://groups.google.com/a/chromium.org/g/blink-dev/c/jEV2VMVjMt8/m/rogFnr6xAgAJ
- access-control-request-header: * などで使われる * は Authorization を含まないという仕様がある
- これに準拠してなかったものを準拠するように変える
Prototype: Cookies Having Independent Partitioned State (CHIPS)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/hvMJ33kqHRo/m/3diUOI0uAQAJ
- Cross Site Tracking ではない 3rd Party Cookie をカバーする Partitioned Cookie の実装
Prototype: Shared Storage API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/_quChIvPzT8/m/0W7IxD_1AAAJ
Prototype: CSS @counter-style descriptor 'speak-as'
- https://groups.google.com/a/chromium.org/g/blink-dev/c/9e9q5WAepGk/m/uw_XP5zuFAAJ
Prototype: Attribution Reporting: support for aggregate reports
- https://groups.google.com/a/chromium.org/g/blink-dev/c/2zA5-TuVSkA/m/GVqUUkhfAwAJ
Experiment: Read Chrome device attributes
- https://groups.google.com/a/chromium.org/g/blink-dev/c/dJQgwZ_1jk0/m/2juPoFDcEwAJ
Experiment: MSE-in-Workers
- https://groups.google.com/a/chromium.org/g/blink-dev/c/XZMyanniH9E/m/6LvB0k70AAAJ
Experiment: Cross-Origin-Embedder-Policy: credentialless
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Sdc0G1bvKr0/m/YHR8RuWyAAAJ
- これまで require-corp で明示的に CORP で許可されたものだけにしてたが制限がきつかった
- パーソナライズされてないページであれば盗めるものはないので許しても良いはず
- Credential を送らないことで読み込みの制限を緩和する提案
Experiment: Window Controls Overlay for Installed Desktop Web Apps
- https://groups.google.com/a/chromium.org/g/blink-dev/c/HNHbpxvrECA/m/-HWfaszRBAAJ
Experiment: Progressive Web Apps as URL Handlers
- https://groups.google.com/a/chromium.org/g/blink-dev/c/RGlyGO-3Az8/m/u7oN4N7xAwAJ
Experiment: User Agent Reduction Origin Trial
- https://groups.google.com/a/chromium.org/g/blink-dev/c/R0xKm1B7qoQ/m/gw-5JltZAwAJ
Experiment: Service Worker subresource filter
- https://groups.google.com/a/chromium.org/g/blink-dev/c/GtR3POPyefM
- SW をすべてのリクエストが通るとオーバーヘッドが大きい
- そのパスをコントロールする API が欲しいが、その前に有用かどうかテストしたい
- Service-Worker-Subresource-Filter: foo だと foo を含むパスだけがヒットするように
- まずこれで試して、有用なら指定方法の詳細なスペックを考える
Extend Experiment: Conversion Measurement API (Attribution Reporting API)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/xCWP1ltlAgw/m/acwN0GIRBQAJ
Extend Experiment: getCurrentBrowsingContextMedia()
- https://groups.google.com/a/chromium.org/g/blink-dev/c/GwqZhE7ufXU/m/wUu9NV5pAQAJ
Extend Origin Trial: Secure Payment Confirmation V2
- https://groups.google.com/a/chromium.org/g/blink-dev/c/8j_2oRpPttA/m/gCeoummbAwAJ
Extend Origin Trial: AppCache
- https://groups.google.com/a/chromium.org/g/blink-dev/c/hQ1zGoPthBU
Ready for Trial: URLPattern
- https://groups.google.com/a/chromium.org/g/blink-dev/c/WitVII_BzyU/m/mI8lZY4NAgAJ
- URL のパターンを表現するオブジェクトで Path のルーティングに使える
- SW での利用が主目的だが、フレームワークにも使えそう
Ready for Trial: Progressive Web Apps as URL Handlers
- https://groups.google.com/a/chromium.org/g/blink-dev/c/7NTGauH8Mxs/m/KiWeFKBVAwAJ
WebCodecs Origin Trial in Chrome 92: Breaking changes and new features
- https://groups.google.com/a/chromium.org/g/blink-dev/c/THMWmD7JGFM/m/TM0tb0LdAwAJ
Request for Deprecation Trial: Restrict "private network requests" for subresources to secure contexts.
- https://groups.google.com/a/chromium.org/g/blink-dev/c/vlDZXlPb00k/m/1421ACiuAAAJ
Deprecate: WebAssembly cross-origin module sharing
- https://groups.google.com/a/chromium.org/g/blink-dev/c/nhmP8A61xk8/m/9OLnTyFNAgAJ
Deprecate and Remove: Persistent Quota
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ziTjKMdOqz8/m/I8Tym8MZAgAJ
Deprecate and Remove: WebSQL in third-party contexts
- https://groups.google.com/a/chromium.org/g/blink-dev/c/TM6YDx1Hh08/m/FxebaDQKAgAJ
Origin Trial for Early Hints preload
- https://groups.google.com/a/chromium.org/g/experimentation-dev/c/tN3vke3CQa4
Feature: Remove alert(), confirm(), and prompt for cross origin iframes
- https://groups.google.com/a/chromium.org/g/blink-dev/c/apvWcKHXBmE
- Cross Origin iframe 内のダイアログが防がれようとしてるが、問題が報告されている
- https://trailblazer.salesforce.com/issues_view?id=a1p4V000002BRMXQA4
- Salesforce では Chrome の flag による無効化をアナウンスしてる
- Intent to Remove: Cross origin subframe JS Dialogs
- https://groups.google.com/a/chromium.org/g/blink-dev/c/hTOXiBj3D6A/m/2So3_HlzAgAJ
- Request for Deprecation Trial: Remove alert(), confirm(), and prompt for cross origin iframes
- https://groups.google.com/a/chromium.org/g/blink-dev/c/VOePv--Qa-4
- もともと I2R がでていたもの
- https://developer.chrome.com/origintrials/#/view_trial/2541156089743802369
- すでに Reverse OT があるので OT が終わる 12/15 までに移行する必要
- https://portswigger.net/research/alert-is-dead-long-live-print
- XSS の PoC には alert() ではなく print() を使おうという話も
- https://github.com/whatwg/html/issues/5407
- https://github.com/whatwg/html/issues/6897
- Chrome 91 、Chrome 92 リリース前後で問題がでたという報告が HTML の issue にも

V8

V8 release v9.2 · V8
- https://v8.dev/blog/v8-release-92
- at method
- Shared Pointer Compression Cage

Other

web.dev
- Find your way with field data in the Web Vitals extension update
  - https://web.dev/field-data-in-the-web-vitals-extension/
- Compat 2021 mid-year update: Flex gap everywhere
  - https://web.dev/compat2021-midyear/
  - Compat 2021 の経過報告
  - どのブラウザでも互換性が向上している
  - CSS flexbox
  - CSS Grid
  - CSS position: sticky
  - CSS aspect-ratio property
  - CSS transforms
  - Overall score improvements
- URLPattern brings routing to the web platform
  - https://web.dev/urlpattern/
- How committing to Core Web Vitals increased Netzwelt's advertising revenues by 18%
  - https://web.dev/netzwelt/
- The performance effects of too much lazy-loading
  - https://web.dev/lcp-lazy-loading/
  - Lazyloading によってバイト数は減ってるが LCP が下がってるページがある
  - WordPress が ATF も Lazyload しており、それをやめると LCP も上がる
  - なんでも Lazyload はやめたほうが良さそう
  - (ブラウザの実装の問題な気もする)
- Building a breadcrumbs component
  - https://web.dev/building-a-breadcrumbs-component/
- Using WebAssembly threads from C, C++ and Rust
  - https://web.dev/webassembly-threads/
- Resource inlining in JavaScript frameworks
  - https://web.dev/aurora-resource-inlining/
- Best practices for tags and tag managers
  - https://web.dev/tag-best-practices/
google developer japan blog
- https://developers-jp.googleblog.com/
chrome developer blog
- WebDriver BiDi - The future of cross-browser automation - Chrome Developers
  - https://developer.chrome.com/en/blog/webdriver-bidi/
  - ブラウザオートメーションの標準プロトコル
- Load cross-origin resources without CORP headers using COEP: credentialless - Chrome Developers
  - https://developer.chrome.com/en/blog/coep-credentialless-origin-trial/
- Restricting Wasm module sharing to same-origin - Chrome Developers
  - https://developer.chrome.com/en/blog/wasm-module-sharing-restricted-to-same-origin/
- The Chromium Chronicle #23: Verified builds in Chrome Infra - Chrome Developers
  - https://developer.chrome.com/en/blog/chromium-chronicle-23/
- Verify a phone number on desktop using WebOTP API - Chrome Developers
  - https://developer.chrome.com/en/blog/cross-device-webotp/
- RenderingNG - Chrome Developers
  - https://developer.chrome.com/en/blog/renderingng/
  - レンダリングのアーキテクチャを整理するプロジェクト
  - 8 年前に開始し今年殆どをリリースする予定
  - 信頼性、パフォーマンス、拡張性を向上
  - HTML, CSS, 2D Canvas, 3D canvas, images, video, and fonts 全てを最適化
  - デバイスの能力を最大限活かす(GPU 、解像度、リフレッシュレート etc)
- Overview of the RenderingNG architecture - Chrome Developers
  - https://developer.chrome.com/en/blog/renderingng-architecture/
- The Chromium Chronicle #22: Know Thy (Depot) Tools - Chrome Developers
  - https://developer.chrome.com/en/blog/chromium-chronicle-22/
- Extension actions in Manifest V3 - Chrome Developers
  - https://developer.chrome.com/en/blog/mv3-actions/
- TablesNG Resolves 72 Chromium Bugs for Better Interoperability - Chrome Developers
  - https://developer.chrome.com/en/blog/tablesng/
  - Table が持つ負債を払い、互換性を向上するプロジェクト
  - row position: sticky, border/background painting, Sub-pixel geometry etc
- Introducing chrome.scripting - Chrome Developers
  - https://developer.chrome.com/en/blog/crx-scripting-api/
- How to set browser flags in Chromium - Chrome Developers
  - https://developer.chrome.com/en/blog/browser-flags/
chromium blog
- Chromium Blog: Faster and more efficient phishing detection in M92
  - https://blog.chromium.org/2021/07/m92-faster-and-more-efficient-phishing-detection.html
  - サイトのカラープロファイルを取得し比較することでフィッシングサイトを割り出す
  - プロファイルの取得アルゴリズムを改善し 50 パーセンタイルで最大 50 倍、99 パーセンタイルで 2.5 倍に
- Chromium Blog: Increasing HTTPS adoption
  - https://blog.chromium.org/2021/07/increasing-https-adoption.html
  - HTTPS First モードを M94 から導入し HSTS がデフォルトな状態に
  - Lock icon をやめてよりニュートラルなアイコンに
canary
- https://www.chromium.org/getting-involved/dev-channel
Deprecation of Internet Explorer Support - The AMP Blog
- https://blog.amp.dev/2021/07/20/deprecation-of-internet-explorer-support/

Firefox 動向

Stable: 90

Updates

Stopping FTP support in Firefox 90 - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/07/20/stopping-ftp-support-in-firefox-90/
Firefox 90 introduces SmartBlock 2.0 for Private Browsing - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/07/13/smartblock-v2/
- クロスサイトトラッカーをブロックする機能が FB のログインをブロックする
- 2.0 はブロックはそのままに明示的にログインする UI を提供する
Firefox 90 supports Fetch Metadata Request Headers - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/07/12/firefox-90-supports-fetch-metadata-request-headers/
- Fetch Metadata をサポートした話
Firefox 90 for developers - Mozilla
- https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/90

Intents

Ship: Object.hasOwn
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/j9lGyixLhpU/m/9QdyTZAtAgAJ
Ship: Imperative Slotting API
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/u1DpLJyYbSw/m/6WCkr0QAAgAJ
Ship: size-adjust descriptor, extended font-size-adjust syntax
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/RLqcyCotcdo/m/KRrrCfQGDQAJ
Prototype and Ship: accent-color CSS property
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/wMKRWjyXGfU/m/biUon_ttAgAJ
Implement: Use fdlibm for Math.cos, Math.sin, and Math.tan to prevent math-based fingerprinting
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/0dxAO-JsoXI/m/eEhjM9VsAgAJ
Experiment:
Change:
Remove:

Other

Spring Cleaning MDN: Part 1 - Mozilla Hacks
- https://hacks.mozilla.org/2021/07/spring-cleaning-mdn-part-1/
- MDN wiki の更新に使ってたアカウントが無効になる
- 今後は Github アカウントで Github からコントリビュート
Getting lively with Firefox 90 - Mozilla Hacks - the Web developer blog
- https://hacks.mozilla.org/2021/07/getting-lively-with-firefox-90/
- Classes go private
- JavaScript at() method
- Conic gradients for Canvas
- New Request Headers
  - Sec-Fetch-Site
  - Sec-Fetch-Mode
  - Sec-Fetch-User
  - Sec-Fetch-Dest
SpiderMonkey Newsletter (Firefox 90-91)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/t7oDx8DFGoY/m/U2wUV-b5AQAJ
Performance Tools Newsletter (H1 2021)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/KoHsOuZ0Gog/m/qYoOzmAgDAAJ
Engineering Effectiveness Newsletter (June 2021 Edition)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/Baptlerb9Ow/m/MvwzdpHuDQAJ
Deprecation plan for Firefox-specific pages on MDN
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/HwRoRUOuyEw/m/ZfYG7oHZDQAJ
Soft code freeze for Firefox 91 starts July 8
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/NXWRhd5NrrU/m/DKlYPqIKDQAJ
Making Client Certificates Available By Default in Firefox 90 - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/07/28/making-client-certificates-available-by-default-in-firefox-90/
2021: The year privacy went mainstream
- https://blog.mozilla.org/en/internet-culture/deep-dives/2021-the-year-privacy-went-mainstream/
- タイトルの通りプライバシーが重要トピックの一つになっていった流れのまとめ
Mozilla responds to the UK CMA consultation on Google's commitments on the Chrome Privacy Sandbox
- https://blog.mozilla.org/en/mozilla/uk-cma-google-commitments-chrome-privacy-sandbox/
Firefox extends privacy and security of Canadian internet users with by-default DNS-over-HTTPS rollout in Canada
- https://blog.mozilla.org/en/mozilla/news/firefox-by-default-dns-over-https-rollout-in-canada/
- CIRA(Canadian Internet Registration Authority) が DoH のプロバイダになった
- これによりカナダの FF ユーザに徐々に DoH をロールアウトしていく
- CIRA は TRR(Trusted Recursive Resolver) に参加した最初の Internet Registration Authority

Safari 動向

Stable: 14.1.2

Updates

Release Notes for Safari Technology Preview 127
- https://webkit.org/blog/11736/release-notes-for-safari-technology-preview-127/
- Added discrete animation support for grid-template-columns and grid-template-rows (r278173)
- Added support for calc() on components inside relative color syntax colors (r278261, r278304)
- Added support for "relative color syntax" for color() (r278364)
- Added additional target luminance keywords for color-contrast() (r278262)
- Added support for Ergonomic Brand Checks proposal (e.g. #x in object) behind the--usePrivateIn flag (r277926)
- Added MediaSession.callActionHandler (r278222)
- Added support for creating, accessing, and setting non-sRGB ImageData via canvas (r277569)
- Added support for dispatching wheel events with ctrlKey on pinch gestures, which is commonly used for zooming embedded maps (r277772)
- Enabled <summary> to be a flex container (r278280)
Release Notes for Safari Technology Preview 128
- https://webkit.org/blog/11925/release-notes-for-safari-technology-preview-128/
- Added support for 12 CSS list-style-type values along with other list style fixes (r279165)
- Added a mechanism to regenerate text in an image element when it changes dimensions (r278747)
- Implemented performance.timeOrigin (r278665)
- Adjusted fetch port blocking for ports 990, 989 (r279099)
- Implemented width and height attributes on source elements of <picture> (r279108)
PCM: Click Fraud Prevention and Attribution Sent to Advertiser
- https://webkit.org/blog/11940/pcm-click-fraud-prevention-and-attribution-sent-to-advertiser/
Optimizing JavaScript Standard Library Functions in JSC
- https://webkit.org/blog/11934/optimizing-javascript-standard-library-functions-in-jsc/

Position

返信があるもの一個もない

Other

Edge 動向

Stable: 92

Dev channel update to 93.0.961.2 is live - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/discussions/dev-channel-update-to-93-0-961-2-is-live/m-p/2592537

Updates

Easier browser debugging with Developer Tools integration in Visual Studio Code
- https://blogs.windows.com/msedgedev/2021/07/16/easier-debugging-developer-tools-in-visual-studio-code/
How to opt-in to the Extended Stable release cycle option beginning with Microsoft Edge 94
- https://blogs.windows.com/msedgedev/2021/07/15/opt-in-extended-stable-release-cycle/

Chakra

Other

Easier browser debugging with Developer Tools integration in Visual Studio Code
- https://blogs.windows.com/msedgedev/2021/07/16/easier-debugging-developer-tools-in-visual-studio-code/
How to opt-in to the Extended Stable release cycle option beginning with Microsoft Edge 94
- https://blogs.windows.com/msedgedev/2021/07/15/opt-in-extended-stable-release-cycle/
WebView2 and Electron | Electron Blog
- https://www.electronjs.org/blog/webview2
- Chromium を使う WebView2 と Electron はどう違うのかを紹介
- Electron は Chromium をバンドルするが、WebView2 ではランタイムも選択できる
- Electron はデスクトップの UI なども API を提供するが、WebView2 にはそれがなくアプリケーションフレームワークに任せる

WHATWG/W3C 動向

Draft

Recommendation
Proposed Recommendation
Candidate Recommendation
- Updated Candidate Recommendation: CSS Counter Styles Level 3
  - https://www.w3.org/blog/news/archives/9169
- W3C Invites Implementations of ARIA in HTML
  - https://www.w3.org/blog/news/archives/9144
Working Draft
First Public Working Draft
- CfC to adopt the Sanitizer API, and publish a FPWD
  - https://lists.w3.org/Archives/Public/public-webappsec/2021Jul/0008.html
- First Public Working Draft: Internationalization Glossary
  - https://www.w3.org/blog/news/archives/9151
Chartering
- Web Application Security Working Group Charter extended until 30 September 2021
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0012.html
- Call for Participation: Media Working Group Charter Approved; Join Media WG
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0010.html
- Proposed W3C Charter: Portable Network Graphics (PNG) Working Group (until 2021-08-18/19)
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0008.html
- Proposed W3C Charter: Spatial Data on the Web Working Group (until 2021-08-16/17)
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0005.html
- Internationalization Working Group and Interest Group Charters extended until 30 September 2021
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0003.html
- Federated Identity Community Group created
  - https://lists.w3.org/Archives/Public/public-new-work/2021Jul/0002.html

Other

Trusted Types
- Special mtg on Trusted Types: send timing preferences
  - https://lists.w3.org/Archives/Public/public-webappsec/2021Jul/0006.html
  - Trusted Types をこのまま WebAppSec で続けるかと言う議論
- [trusted-types] Mid 2021 report
  - https://lists.w3.org/Archives/Public/public-webappsec/2021Jul/0003.html
  - https://docs.google.com/document/d/1m91JZWKAGOR3jQoicMVE9Ydcq79gM2BetcRIBemrex8/view
  - Google が TT の導入についてまとめたレポート
- CfC to publish as an FPWD. · Issue #342 · w3c/webappsec-trusted-types
  - https://github.com/w3c/webappsec-trusted-types/issues/342
  - Trusted Types の FPWD に mozilla が反対し始めた
Job: Web Accessibility Development and Operations Lead, based in Europe
- https://www.w3.org/blog/news/archives/9174
Last call to apply for the TPAC 2021 Inclusion Fund
- https://www.w3.org/blog/news/archives/9161
New video introduces TPAC - our annual conference
- https://www.w3.org/blog/news/archives/9146
Accessibility accommodations now part of all W3C workshops
- https://www.w3.org/blog/news/archives/9142
Re-add JSON module scripts · whatwg/html@d554d6d
- https://github.com/whatwg/html/commit/d554d6de43f6a366d0062c443ec1c7d7b4a310a3
Introduce CSS module scripts · whatwg/html@3d45584
- https://github.com/whatwg/html/commit/3d45584d286e9455cc24ebae1f3aca3db120dc9d

TC39 動向

Meeting

2021-07
- https://github.com/tc39/agendas/blob/master/2021/07.md

Proposals Diff

https://github.com/tc39/proposals/compare/master@{2021-07-01}...master@{2021-08-01}
https://tc39.github.io/beta/
0->1
- ArrayBuffer to/from Base64
- Array Grouping
1->2
2->3
- Intl Enumeration API
- Intl.NumberFormat v3
- Realms (Callable Boundary)
3->4
- Ergonomic Brand Checks for Private Fields

New Proposals

Proposal to add argument for .trim(), .trimStart() and .trimEnd() to allow strip the specified characters from strings.
- https://github.com/Kingwl/proposal-string-trim-characters
TC39 proposal for ArrayBuffer<->base64 string functions
- https://github.com/tc39/proposal-arraybuffer-base64
A proposal to make grouping of array items easier
- https://github.com/tc39/proposal-array-grouping

Other

Node v16.5.0 (Current) | Node.js
- https://nodejs.org/en/blog/release/v16.5.0/
- Experimental Web Streams API

IETF 動向

WG

IETF111 San Francisco
- 来月めとめる
httpwg
- https://lists.w3.org/Archives/Public/ietf-http-wg/
- https://github.com/httpwg/wg-materials/
- Revised HTTP core specifications submitted (drafts 17)
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0114.html
- Working Group Last Call: HTTP/2 revision
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0091.html
- I-D Action: draft-ietf-httpbis-targeted-cache-control-00.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0115.html
- Last Call: (The Proxy-Status HTTP Response Header Field) to Proposed Standard
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0089.html
- #904: Content on GET requirement strength
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0065.html
- #879: Should servers interpret Transfer-Encoding in 1.0 requests?
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0042.html
- UDP source ports for HTTP/3 and QUIC
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0053.html
- I-D Action: draft-ietf-httpbis-http2bis-03.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0041.html
- I-D Action: draft-ietf-httpbis-priority-04.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0040.html
- Last Call: (Building Protocols with HTTP) to Best Current Practice from The IESG
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0037.html
- I-D Action: draft-ietf-httpbis-cache-header-09.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021JulSep/0030.html
quicwg
- https://mailarchive.ietf.org/arch/browse/quic/
- https://github.com/quicwg/wg-materials
webtrans
- https://mailarchive.ietf.org/arch/browse/webtransport/
- https://github.com/DavidSchinazi/webtrans-wg-materials
tlswg
- https://mailarchive.ietf.org/arch/browse/tls/
- https://github.com/tlswg/wg-materials
wpack
- https://mailarchive.ietf.org/arch/browse/wpack/
privacypass
dispatch
- https://mailarchive.ietf.org/arch/browse/dispatch/
secdispatch
- https://mailarchive.ietf.org/arch/browse/secdispatch/

Other

CDN 動向

Cloudflare

Fastly

Compute@Edge: the JavaScript support you demanded without cold starts or increased security risks | Fastly
- https://www.fastly.com/blog/compute-edge-now-supports-javascript
- https://www.publickey1.jp/blog/21/fastlyjavascriptwebassemblycdncomputeedge.html
- Fastly 上の WASM 実行環境で JS がサポートされた
- AssemblyScript で WASM に変換するのではなく、SpiderMonkey の WASM 版を使う方向に
- JS もデプロイ時に最適化処理するので高速に起動できる

Other

一時的なサービス障害の概要について(ステータス:解決済) - Akamai Japan Blog
- https://blogs.akamai.com/jp/2021/07/post-24.html

セキュリティ動向

2021.06.08 Certificate Lifetime Incident (valid for an extra one second) - Incidents - Let's Encrypt Community Support
- https://community.letsencrypt.org/t/2021-06-08-certificate-lifetime-incident-valid-for-an-extra-one-second/153426
- Let's Encrypt の証明書が 90 日ではなく 90 日 + 1 秒になっていて修正
- 有効期間は "not before" と "not after" で定義するが、"not after" はその時間を含むため
- 1s 減らした修正を発覚から 8h でデプロイした
- 1.8 億の証明書に影響するが仕様違反なわけではないため失効はしない
- Yeti 2022 not furnishing entries for STH 65569149
- https://groups.google.com/a/chromium.org/g/ct-policy/c/PCkKU357M2Q/m/xbxgEXWbAQAJ
- CT Log の一つが計算の結果エラーになることが発覚
- オペレーションのエラーではなくハードウェアエラーで 1bit 反転したのが原因の模様
- 「宇宙線(Cosmic Ray)が原因では」という話があり HN が盛り上がってる
- https://news.ycombinator.com/item?id=27728287

周辺動向

WorldWideWeb のソースコードの NFT が約 6 億円で落札
- https://www.gizmodo.jp/2021/07/worldwideweb-nft.html
- https://www.sothebys.com/en/buy/auction/2021/this-changed-everything-source-code-for-www-x-tim-berners-lee-an-nft/source-code-for-the-www
- 1990/10/3 に書かれた Sir TBL の www のコードが NFT で出品される
- 約 1 万行のコードと、コードを表示した動画、SVG 、TBL のメッセージ README が同梱
- サザビーズで 543 万ドルで落札(6 万円/行)され、収益はチャリティへ
- 動画の中の <> が何故か < > にエンコードされて表示されていた
  - https://github.com/cynthia/WorldWideWeb
Chrome 100 - Does it break user agent checking?
- https://paul.kinlan.me/chrome-100/
  - Chrome の version が 100 を超えたら UA は壊れるか?
  - M10 のときは "Chrome 10" で始まるかを確認してるサイトがあったらしい
  - HTTP Archive で調べたがそこでは結果は少なかった
Encoding data for POST requests - JakeArchibald.com
- https://jakearchibald.com/2021/encoding-data-for-post-requests/
  - URLSearchParams / FormData の話
The Core Web Platform Loop - Infrequently Noted
- https://infrequently.org/2021/07/the-core-web-loop/
Hobson's Browser - Infrequently Noted
- https://infrequently.org/2021/07/hobsons-browser/

イベント

8 月
9 月
- 7-11: SecWeb
  - https://secweb.work/
10 月
- 18-29: TPAC:
- 10/18-22 October: Breakout sessions
- 10/25-29 October: Groups and Joint Meetings
  - https://lists.w3.org/Archives/Public/public-webrtc/2021Apr/0027.html

Wrap Up

Chrome
- COEP: credentialless
- Subresource Web Bundle OT 終了
- Error Cause
- Object.hasOwn()
- prefer: CurrentTab と mozilla の position
- UA-CH と windows の version を細かくする話
- Cookie Size Limits
- CORS non wildcard に Authorization を追加の話
- SW Subresource Filter
- URLPattern
- Cross iframe の alert()/confirm() prompt と互換性の話
- Lazyloading しすぎて LCP が遅くなる話
- RenderingNG, TablesNG
- Phishing Detection のカラープロファイルの話
- HTTPS First
Firefox
- Smart Block2
- Fetch Metadata Support
- Canvas Conic Gradient
- Canada で DoH 開始
Safari
- Ergonomic Brand Check
- Picture source width
- PCM の report fraud 対策
Edge
- VSCode integration
- WebView2 と Electron
W3C
- Sanitizer API が FPWD
- Trusted Types の FPWD に Mozilla が反対
- Federated Identity Community Group created
- JSON Module, CSS Module が HTML に追加
TC39
- Realm to Stage3
- ArrayBuffer from/to Base64
- Array grouping to stage 0
- Node@16.5 WHATWG Stream support
IETF
- HTTPbis v17 IESG
- HTTP2bis WGLC
- Proxy Status WGLC
- HTTP BCP WGLC
CDN
- Akamai DNS 障害
セキュリティ
- Let's Encrypt の 90 日 + 1 秒の話
- 宇宙線の 1bit 反転で CT が壊れた話
周辺動向
- WWW のコードが NFT で 6 億
- Jake の URLSearchParams/FormData blog