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# ep76 Monthly Web 202011
第 76 回のテーマは 2020 年 11 月の Monthly Web です。
## Show Note
### Chrome 動向
- Stable: 87
- Updates
- *Chromium Blog: Chrome 88: Digital Goods, Lighting Estimation in Augmented Reality, and More*
- https://blog.chromium.org/2020/12/chrome-88-digital-goods-lighting.html
- *Digital Goods API*
- Origin Trials
- New Origin Trials
- WebXR: AR Lighting Estimation
- Completed Origin Trials
- PointerLock unadjustedMovement
- Other features in this release
- *Anchor `target=_blank` implies `rel=noopener` by Default*
- Dark Mode Form Controls and Scrollbars
- *AbortSignal in `addEventListener()`*
- *CSS aspect-ratio Property*
- CSS Selectors 4: Complex `:not()`
- Don't Clear adoptedStyleSheets on Adoption to/from ``
- ElementInternals.shadowRoot Attribute
- Make Type Optional in `WakeLock.request()`
- *Origin Isolation*
- `path()` Support in clip-path CSS Property
- *Permissions-Policy Header*
- `RTCRtpTransceiver.stop()`
- JavaScript
- Shared Array Buffers, Atomics, and Futex APIs
- Deprecations, and Removals
- Don't Allow Popups During Page Unload (Enterprises)
- FTP Support Removed
- Web Components v0 Removed
- *What's New In DevTools (Chrome 88)*
- https://developers.google.com/web/updates/2020/11/devtools
- Faster DevTools startup
- New CSS angle visualization tools
- Emulate unsupported image types
- Simulate storage quota size in the Storage pane
- New Web Vitals lane in the Performance panel recordings
- Report CORS errors in the Network panel
- Frame details view updates
- Cross-origin isolation information in the Frame details view
- New Web Workers information in the Frame details view
- Display opener frame details for opened windows
- Open Network panel from the Service Workers pane
- New copy options in the Network panel
- Copy property value
- Copy stacktrace for network initiator
- Wasm debugging updates
- Preview Wasm variable value on mouseover
- Evaluate Wasm variable in the Console
- Consistent units of measurement for file/memory sizes
- Highlight pseudo elements in the Elements panel
- Experimental features
- CSS Flexbox debugging tools
- Customize chords keyboard shortcuts
- *Puppetaria: accessibility-first Puppeteer scripts*
- https://developers.google.com/web/updates/2020/11/puppetaria
- CSS Selector ではなく a11y tree のクエリでテストを記述する
- DOM 構造への依存を減らせるのでメンテナンスコストが下がる
- New in Chrome 87
- https://developers.google.com/web/updates/2020/11/nic87
- Chrome Dev Summit
- Camera pan, tilt, zoom
- Range requests and service workers
- Origin Trial: Font access API
- *Simulating color vision deficiencies in the Blink Renderer*
- https://developers.google.com/web/updates/2020/11/cvd
- 色覚障害のシミュレーションや、コントラスト不足などを検証する方法
- Chromium Blog: Tab throttling and more performance improvements in Chrome M87
- https://blog.chromium.org/2020/11/tab-throttling-and-more-performance.html
- Occlusion Tracking で使用中タブを認識しリソースの配分を最適化
- Back/forward cache
- Google ウェブマスターから Google 検索セントラルへ
- https://developers.google.com/search/blog/2020/11/goodbye-google-webmasters
- WebMaster から Search Central へリブランド
- Google 検索へのページ エクスペリエンスの導入時期
- https://developers.google.com/search/blog/2020/11/timing-for-page-experience?hl=ja
- 2021/5 から Page Experience を Ranking に反映するという発表
- AMP じゃなくてもモバイルのトップニュースの表示候補になるように
- CWV/Mobile Friendly/Safe Browsing/HTTPS/No Intrusive Interstitials などが加味される
- Disable mouse acceleration to provide a better FPS gaming experience
- https://web.dev/disable-mouse-acceleration/
- マウスのアクセラレーションを無効にする?
- Using the Event Conversion Measurement API
- https://web.dev/using-conversion-measurement/
- Privacy Sandbox family の 1 つ
- Click でのコンバージョンを送る API
- Building a Stories component
- https://web.dev/building-a-stories-component/
- Instagram の Story みたいな表現を CSS で行う解説
- Grid/scroll-snap-align/scroll-snap-stop などを組み合わせる
- *Schemeful Same-Site*
- https://web.dev/schemeful-samesite/
- SameSite はこれまで Schemeless だった
- Schemefull がデフォルトになり https:// と http:// は Cross Site になる
- Browser-level lazy-loading for CMSs
- https://web.dev/browser-level-lazy-loading-for-cmss/
- loading lazy を CMS につける場合の考慮事項まとめ
- *Better JS scheduling with `isInputPending()`*
- https://web.dev/isinputpending/
- isInputPending を用いたユーザ操作をブロックしないタスクの書き方
- Back/forward cache
- https://web.dev/bfcache/
- Safari/FF にはあった戻る時のキャッシュヒットを Chrome に入れていく話
- CrossSite は Finch release 済み
- SameSite への OT を実施中
- pageshow/pagehide の扱い、 no-store でのオプトアウトなど
- *BlinkOn13 Youtube Playlist*
- https://www.youtube.com/playlist?list=PL9ioqAuyl6UJ_1hPrSWD1LpaIAeF9aaJi
- 動画の前半がセッション、後半は QA な録画
- History of the Web
- https://www.youtube.com/watch?v=__V7J2NgKZI
- Igaria / Google の 3 人によるセッション
- スライドなし、昔話
- BFCache
- https://www.youtube.com/watch?v=lzWQTN7E0HA
- Origin Trials
- https://www.youtube.com/watch?v=C1x44KZJLQI
- Instant & Seamless
- https://www.youtube.com/watch?v=aSSFEfAq3oY
- WebBundles - JS delivery without the tradeoffs
- https://www.youtube.com/watch?v=i68zS3iG7xw
- The Intent of Intents - Chromium and Standards
- https://www.youtube.com/watch?v=hgEyQsy1D7w
- Intents の仕組みがどう回ってるのかの話
- *Schedule: Chromium University 2020*
- https://docs.google.com/document/d/e/2PACX-1vRcPxu7DPsFNZHGDaeaM00meaHybMsEUrsCZOhYJIO-umT3Ouh-uDYQtWnhiQRxYR15HKqabbWQyh-0/pub
- 2019 年まで Chrome University だったものが Chromium University に
- Intents
- Ship: Origin Isolation
- https://groups.google.com/a/chromium.org/g/blink-dev/c/WW4fGjvroWI
- Ship: XRWebGLBinding interface
- https://groups.google.com/a/chromium.org/g/blink-dev/c/6J0yfRuMmSU
- Ship: Change click, auxclick and contextmenu event types to PointerEvent
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bta50W_Hg24
- *Ship: Schemeful Same-Site*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/aiXFdnA5tsk
- SameSite Cookie が SchemeLess だったのを SchemeFul に変える
- http:// と https:// が Cross Site になるので安全性向上
- M88 から Finch して影響を調査
- *Ship: Restrict "private network requests" for subresources to secure contexts.*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/cPiRNjFoCag
- CORS-RFC1918 の第一歩
- public な攻撃サイトからの subresorce request で local/private に攻撃できる場合がある
- とりあえず public -> private へのリクエストは https を必須にすることで緩和
- Ship: Same-site back-forward cache on Android
- https://groups.google.com/a/chromium.org/g/blink-dev/c/XS9VnYQoaQE
- BFCache は Cross Site でのみ提供済みだったが Same Site でも Ship していきたい
- Ship: Restriction on SharedArrayBuffers (SABs)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/1NKvbIj3dq4
- Android Chrome と FF に ship された SiteIsolation 環境での SAB 最有効化
- あれを Desktop Chrome でもやる M91 ねらい
- Ship: CSS ::target-text pseudo-element
- https://groups.google.com/a/chromium.org/g/blink-dev/c/yN2lrq67a1c
- scroll to text で遷移する先を取る疑似要素
- *Ship: Relative indexing method for Array, String, and TypedArrays*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/I8S78w7aFmE/m/qLHAcjhRCQAJ
- String, Array, TypedArray の引数で index を指定する `at()`
- 負の数だと後ろから
- Ship: Add support for CSS properties "overflow: clip" and "overflow-clip-margin"
- https://groups.google.com/a/chromium.org/g/blink-dev/c/xGofL-IMAb4/m/t03fbbg3CQAJ
- *Ship: 'display: list-item' by default for ``*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ihZFdCHuiTA/m/e1SEN6IQCQAJ
- summary の開閉の三角を別のものに書き換えるとき `::-webkit-details-marker` の `::before` content 経由だった
- list-item になり list-style-type でコンテントを、 `::marker` でスタイルを定義できるように
- *Ship: 'disclosure-open' and 'disclosure-closed' keywords for CSS list-style-type property*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Czc_36BS2dA/m/_yHDeFwQCQAJ
- list-style-type に `disclosure-open`/`closed` を追加(`` の開閉の三角)
- Ship: WebHID (Human Interface Device)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/rL1csFYD1Ms/m/3qgPuZACCQAJ
- Ship: Potentially trustworthy data: urls
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Hb1-VLwq54Y/m/TYsK4EzlCAAJ
- data: urls は仕様上 potentially trustworthy となっている'
- それを chrome の他のケースにも一般化する?
- Ship: display_override
- https://groups.google.com/a/chromium.org/g/blink-dev/c/MZgYJgS4Lcs
- webmanifest の display に fallback が書ける
- Ship: Cross-origin opener policy reporting API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/0fvyrO1-p_o
- COOP に Reporting
- Implement and Ship: Block HTTP ports 5060 and 5061
- https://groups.google.com/a/chromium.org/g/blink-dev/c/tTGznHWRB9U
- Implement and Ship: AbstractRange superclass
- https://groups.google.com/a/chromium.org/g/blink-dev/c/h9AyVUx7M7M/m/NUrQd9DRBwAJ
- StaticRange と Range に共通メソッドがあるので AbstractRange を抽出
- Implement and Ship: Limit characters allowed in extensions in File System Access API file pickers
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bFUbINgQNgk
- *Prototype: AbortSignal in addEventListener*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/9396JedBBOM
- signal でキャンセルすると listener が削除される
- Prototype: MediaStreamTrack Insertable Streams (a.k.a. Breakout Box)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/gkBkLvGKuzc
- Prototype: Screen Fold API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/prHGPxF62i4
- 折りたたみデバイスなどに向けて、たたみ方のタイプや角度を取得できるようにする API
- Prototype: Media Source Extensions for WebCodecs
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bejy1nmoWmU
- WebCodecs を用いて MSE をもっと効率よくできるようにする提案
- *Prototype: Handwriting Recognition API*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/VXUq1UY4m7Y
- 手書き認識の API
- OS の IME では対応があるのに Web にはないというギャップを埋めたいらしい
- *Prototype: display-capture feature policy*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/gBpWuawy-Ms
- getDisplayMedia に対する feature policy
- もう permission policy じゃね? -> つっこみ入ってた
- Prototype: Read Chrome device attributes
- https://groups.google.com/a/chromium.org/g/blink-dev/c/oYRwgx8SwTA
- Prototype: Managed configuration for Web Applications
- https://groups.google.com/a/chromium.org/g/blink-dev/c/LZ3FHzUOLQk
- Prototype: Shared Element Transitions
- https://groups.google.com/a/chromium.org/g/blink-dev/c/7SMI3IklO4g
- MPA で SPA みたいなシームレスな画面遷移ができるようにする
- DEMO: https://www.youtube.com/watch?v=yDFyLEN6aKk
- Extend Origin Trial: WebAssembly SIMD
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bw_RgyH4Xss
- *Extend Experiment: Beforematch event and hidden-matchable*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/a76WF3Dfl3E
- `content-visibility: hidden-matchable` すると非表示だが検索ができる
- Beforematch event はそのページ内検索や scoll to text したときに発火するイベント
- DEMO: https://github.com/WICG/display-locking/blob/master/explainers/images/beforematch.gif
- Extend Origin Trial: WebCodecs
- https://groups.google.com/a/chromium.org/g/blink-dev/c/3MNyU3OAacI
- Extend Origin Trial: Web Components v0 Deprecation
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ZQJ0k1IpQSo/m/KE467oUICQAJ
- Extend Origin Trial: Secure payment confirmation
- https://groups.google.com/a/chromium.org/g/blink-dev/c/9cgsOW3XNw4/m/bBgGYUwACQAJ
- Credential Management API に PaymentCredential を追加して決済の UX を改善
- Extend Origin Trial: adaptivePtime property for RTCRtpEncodingParameters
- https://groups.google.com/a/chromium.org/g/blink-dev/c/T1ad0wJQ9qQ
- Change:
- Unship:
- *Remove: HTTP/2 and gQUIC server push*
- https://groups.google.com/a/chromium.org/g/blink-dev/c/K3rYLvmQUBY
- PSA: TAG Reviews Are Required
- https://groups.google.com/a/chromium.org/g/blink-dev/c/naqmDmy1iM8/m/czBpBRFYAQAJ
- v8
- Other
- Feedback wanted: CORS for private networks (RFC1918)
- https://web.dev/cors-rfc1918-feedback/
- Q3 Summary from Chrome Security
- https://groups.google.com/a/chromium.org/g/security-dev/c/oBj6NlMnWKw
- *Announcing the Chrome Root Program*
- https://groups.google.com/g/mozilla.dev.security.policy/c/3Q36J4flnQs
- https://www.chromium.org/Home/chromium-security/root-ca-policy
- Chrome も Firefox みたいに証明書ストアを自分で持つようになるらしい
### Firefox 動向
- Stable: 83.0
- Updates
- *Warp: Improved JS performance in Firefox 83*
- https://hacks.mozilla.org/2020/11/warp-improved-js-performance-in-firefox-83/
- These Weeks in Firefox: Issue 83
- https://blog.nightly.mozilla.org/2020/11/19/these-weeks-in-firefox-issue-83/
- Measuring Middlebox Interference with DNS Records - Mozilla Security Blog
- https://blog.mozilla.org/security/2020/11/17/measuring-middlebox-interference-with-dns-records/
- DNS のパフォーマンスへの影響を Cloudflare と調査
- *Firefox 83 introduces HTTPS-Only Mode*
- https://blog.mozilla.org/security/2020/11/17/firefox-83-introduces-https-only-mode/
- HTTPS でしか接続せず、 HTTP で接続しようとすると許可を求めるモードの導入
- Foundations for the Future - Mozilla Hacks - the Web developer blog
- https://hacks.mozilla.org/2020/11/foundations-for-the-future/
- Servo が Linux Foundation に移管されたことを受けての今後の話
- *Firefox 83 is upon us*
- https://hacks.mozilla.org/2020/11/firefox-83-is-upon-us/
- Conic gradients
- WebRender comes to more platforms
- ページを 60fps で表示する WebRender のトライアル開始
- Pinch to zoom on desktop
- Intents
- *Ship: :focus-visible pseudo-class*
- https://groups.google.com/g/mozilla.dev.platform/c/yA2rL_2keTE
- Ship: CSS overflow:clip
- https://groups.google.com/g/mozilla.dev.platform/c/7oQm8PC0aU0
- -moz-hidden-unscrollable の標準バージョン
- *Ship: PerformancePaintTiming API*
- https://groups.google.com/g/mozilla.dev.platform/c/qPB1OLaQWsw
- First Contentful Paint
- Implement and ship: CSS property touch-action:pinch-zoom
- https://groups.google.com/g/mozilla.dev.platform/c/DYc-4vO0D5Q/m/VJHGCUFhAQAJ
- *Prototype and ship: signal property on AddEventListenerOptions*
- https://groups.google.com/g/mozilla.dev.platform/c/KdR8-eJplCs/m/a0pVUNiTBAAJ
- AbortSignal を渡すための signal property
- Unship: Large-Allocation header
- https://groups.google.com/g/mozilla.dev.platform/c/9GZosW8PN6w/m/LhbpVe3DAwAJ
- Removal of NPAPI plugin support in Firefox 85
- https://groups.google.com/g/mozilla.dev.platform/c/NsdReYslBU4/m/b9FwjVAbBAAJ
- Accessibility review process
- https://groups.google.com/g/mozilla.dev.platform/c/6W6vxvVivLk
- *Enabled CRLite in Nightly*
- https://groups.google.com/g/mozilla.dev.platform/c/mbYKUEGE5oQ/m/JsSBV-RRAAAJ
- HTTP/3 ready for testing
- https://groups.google.com/g/mozilla.dev.platform/c/6CZs8Jartu0
- Other
- Firefox Security Newsletter - Q3 2020
- https://groups.google.com/g/mozilla.dev.platform/c/k_jNJXOMXYw
- *Design of the CRLite Infrastructure - Mozilla Security Blog*
- https://blog.mozilla.org/security/2020/12/01/crlite-part-4-infrastructure-design/
- CRLite をどういうインフラで提供しているか
- Fission Newsletter #9
- https://groups.google.com/g/mozilla.dev.platform/c/F-68NBe2K_8
- *Preloading Intermediate CA Certificates into Firefox*
- https://blog.mozilla.org/security/2020/11/13/preloading-intermediate-ca-certificates-into-firefox/
- *Igalia joins MDN Product Advisory Board | Igalia*
- https://www.igalia.com/2020/12/02/Igalia-joins-MDN-Product-Advisory-Board.html
- Igalia (Daniel Ehrenberg) が MDN の PAB に参加
### Safari 動向
- Stable: 14.0.1
- Updates
- New WebKit Features in Safari 14
- https://webkit.org/blog/11340/new-webkit-features-in-safari-14/
- *Webpage Translation*
- ただし日本語は対象外?
- translate(="yes") or translate="no"
- Performance Improvements
- Loading a previously unvisited page is 13% faster
- loading recently visited pages is 42-52% faster.
- Tab closing performance improved from 3.5 seconds to 50 milliseconds.
- support for incrementally loading PDF files and now renders the first page up to 60 x faster.
- Improved Compatibility
- Service Workers, SVG, CSS, XHR+Fetch などで 14 万個のテストに追加でパス
- *Privacy Updates*
- ITP 更新
- CNAME Cloaking block
- Touch ID and Face ID for the Web
- *WebP Support*
- Reserving Layout Space for Images
- width/height でアスペクト比割り出し領域予約
- New CSS Features
- *画像の向きが EXIF ベースになり、 image-orientation で上書き*
- is:(), :matches(), :where()
- line-break: anywhere
- Media Enhancements
- dynamic-range: high
- *JavaScript Improvements*
- BigInt
- optional chaining
- Web Inspector Updates
- *Release Notes for Safari Technology Preview 116 | WebKit*
- https://webkit.org/blog/11348/release-notes-for-safari-technology-preview-116/
- *Enabled AudioWorklet API by default (r268459)*
- Added implementation for AudioWorkletGlobalScope.registerProcessor() (r268103)
- Added implementation for AudioWorkletGlobalScope's currentFrame, currentTime, and sampleRate attributes (r268076)
- *Enabled video capture by default on macOS (r268052)*
- Added support for MediaRecorder bitrate getters (r268363)
- Added support for MediaRecorder pause and resume (r268130)
- Added support for respecting enabled and muted tracks (r267987)
- Added support for BlobEvent.timecode (r268136)
- Added support for the individual transform properties translate, rotate, scale, including accelerated animation (r267985, r268627)
- Added painting CSS highlights over images (r268487)
- Improved the essential internal methods for %TypedArray% to adhere to spec (r268640)
- Improved computation of default audio input and output devices (r268396)
- Implemented Blob.stream (r268228)
- Improved xhr.response conformance to the specification (r267959)
- Aligned URL setters to reasonable behaviors of other browsers (r268050)
- Fixed UTF-8 encoding in URL parsing (r267963)
- Enabled per-page storage access scope (r267973)
- MediaRecorder API
- https://webkit.org/blog/11353/mediarecorder-api/
- *CNAME Cloaking and Bounce Tracking Defense*
- https://webkit.org/blog/11338/cname-cloaking-and-bounce-tracking-defense/
- Request for Position
- Element Timing
- https://lists.webkit.org/pipermail/webkit-dev/2020-November/031579.html
- changing click, auxclick, contextmenu to PointerEvent
- https://lists.webkit.org/pipermail/webkit-dev/2020-November/031588.html
- Readable Byte Streams
- https://lists.webkit.org/pipermail/webkit-dev/2020-November/031597.html
- Schemeful Same-Site
- https://lists.webkit.org/pipermail/webkit-dev/2020-November/031618.html
- relative indexing method on JS indexables
- https://lists.webkit.org/pipermail/webkit-dev/2020-November/031622.html
- Other
### Edge 動向
- Stable: 87
- Updates
- Chakra
- Release ChakraCore v1.11.23 - microsoft/ChakraCore
- https://github.com/microsoft/ChakraCore/releases/tag/v1.11.23
- Other
- How Microsoft Edge and other applications manage memory
- https://blogs.windows.com/msedgedev/2020/11/11/how-microsoft-edge-and-other-applications-manage-memory/
- Introducing Shopping with Microsoft Edge - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/articles/introducing-shopping-with-microsoft-edge/m-p/1870080
- Announcing General Availability of Microsoft Edge WebView2 for .NET and Fixed Version distribution mode - Microsoft Edge Blog
- https://blogs.windows.com/msedgedev/2020/11/20/announcing-general-availability-of-microsoft-edge-webview2-for-net-and-fixed-version-distribution-mode/
- *Improving notifications and badging in Microsoft Edge - Microsoft Edge Blog*
- https://blogs.windows.com/msedgedev/2020/11/16/improving-notifications-badging-microsoft-edge/
- Edge ってブラウザ閉じてる時の push notification 無かったらしい
- これを戻した
- *Improvements to history in Microsoft Edge - Microsoft Tech Community*
- https://techcommunity.microsoft.com/t5/articles/improvements-to-history-in-microsoft-edge/m-p/1896552#M3896
- 履歴と表示タブをブラウザで共有する話
- Outlook REST API beta and Outlook REST API v2.0 Deprecation Notice - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/exchange-team-blog/outlook-rest-api-beta-and-outlook-rest-api-v2-0-deprecation/ba-p/1898162
### WHATWG/W3C 動向
- Recommendation
- Proposed Recommendation
- Candidate Recommendation
- Working Draft
- Updated Candidate Recommendation: Payment Request API
- https://www.w3.org/blog/news/archives/8779
- First Public Working Draft
- First Public Working Draft: WebXR Layers API Level 1
- https://www.w3.org/blog/news/archives/8775
- Chartering
- Consent Community Group created
- https://lists.w3.org/Archives/Public/public-new-work/2020Nov/0005.html
- https://www.w3.org/blog/news
- Other
- *Web Platform Design Principles*
- https://www.w3.org/TR/2020/NOTE-design-principles-20201110/
- Web に新しい機能を追加する際に検討すること
- TAG review での経験をもとに文書化
- *Remove AppCache · whatwg/html@e4330d5*
- https://github.com/whatwg/html/commit/e4330d510a1d05e1f5f84707c9d6dcec97db94b8
- HTML 仕様から AppCache が削除
### TC39 動向
- Meeting 2020-011
- agendas
- https://github.com/tc39/agendas/blob/master/2020/11.md
- minutes
- https://github.com/tc39/notes/tree/master/meetings/2020-11 (まだない)
- Proposals Diff
- https://github.com/tc39/proposals/compare/master@{2020-11-01}...master@{2020-12-01}
- https://tc39.github.io/beta/
- 0->1
- Module Blocks
- Extensions
- 1->2
- Error Cause
- 2->3
- `.item()` to `.at()`
- 3->4
- New Proposals
- *Module Blocks*
- https://github.com/tc39/proposal-js-module-blocks
- module をインラインで定義できる構文
- worker のコードなどを別ファイルで読み込まなくて良い
- *Extensions*
- https://github.com/hax/proposal-extensions
- Bind Operator をさらに更新してモジュールとして拡張を自作できるようにする
- eraDisplay option for Intl.DateTimeFormat
- Intl.bestAvailableLocale
- Extend TimeZoneName Option Proposal
- Other
- *2021 の meeting*
- 8 回を予定
- 半分は物理で計画
- 7 月は Tokyo (4 days) -> のちに remote に変更(たぶん Olympic)
- *TC39 も MDN に協力してこう*
- MDN staffing to document TC39's work
### IETF 動向
- IETF
- materials
- https://datatracker.ietf.org/meeting/
- httpwg
- no meeting
- quicwg
- https://github.com/quicwg/wg-materials/blob/master/ietf109/minutes.md
- webtrans
- https://datatracker.ietf.org/meeting/109/materials/minutes-109-webtrans-00
- tlswg
- https://datatracker.ietf.org/meeting/109/materials/minutes-109-tls-00
- dispatch
- https://datatracker.ietf.org/meeting/109/materials/minutes-109-dispatch-00
- RFC
- IETF Last Call
- WG Last Call
- Call for Adoption
- Call for Adoption: HTTP/2 Bis
- https://lists.w3.org/Archives/Public/ietf-http-wg/2020OctDec/0197.html
- HTTP2 の更新作業をやっていく
- On RFC7725bis
- https://lists.w3.org/Archives/Public/ietf-http-wg/2020OctDec/0195.html
- 451 Unavailable For Legal Reasons 更新については interest が少なくてやらない
- I-D Action
- Draft
- *The CDN-Cache-Control HTTP Response Header Field*
- https://tools.ietf.org/html/draft-cdn-control-header-00
- CDN にのみ向けた Cache-Control となるヘッダ
- Fastly でいう Surrogate-Control の標準化
- JWS Clear Text JSON Signature Option (JWS/CT)
- https://tools.ietf.org/html/draft-jordan-jws-ct-00
- *The Idempotency HTTP Header Field*
- https://tools.ietf.org/html/draft-idempotency-header-01
- 冪等性の無い POST をリトライできるように id をつけるためのヘッダ
- Other
### セキュリティ動向
- Standing on Our Own Two Feet - Let's Encrypt - Free SSL/TLS Certificates
- https://letsencrypt.org/2020/11/06/own-two-feet.html
### 周辺動向
- Cloudflare
- SAD DNS Explained
- https://blog.cloudflare.com/sad-dns-explained/
- Automated Origin CA for Kubernetes
- https://blog.cloudflare.com/automated-origin-ca-for-kubernetes/
- Announcing Spectrum DDoS Analytics and DDoS Insights & Trends
- https://blog.cloudflare.com/announcing-spectrum-ddos-analytics-and-ddos-insights-trends/
- The Internet is Getting Safer: Fall 2020 RPKI Update
- https://blog.cloudflare.com/rpki-2020-fall-update/
- *Improving Performance and Search Rankings with Cloudflare for Fun and Profit*
- https://blog.cloudflare.com/improving-performance-and-search-rankings-with-cloudflare-for-fun-and-profit/
- Google が search rank に perf を入れるアナウンスをした ->
- cloudflare 入れると perf が上がる ->
- cloudflare 入れると rank が上がる
- Brotli compression using a reduced dictionary
- Brotli compression using a reduced dictionary
- https://blog.cloudflare.com/brotli-compression-using-a-reduced-dictionary/
- *The State of CSS 2020*
- https://2020.stateofcss.com/
- *Advent Calendar*
- PWAdvent
- https://pwadvent.dev/
- Web Performance Calendar >> 2020
- https://calendar.perfplanet.com/2020/
- https://calendar.perfplanet.com/contribute/
### イベント
- 12 月
- 9-10: Chrome Dev Summit
- https://developer.chrome.com/devsummit/
- 1 月
- 2 月
### Wrap Up
- M88
- Digital Goods API
- noopener by default
- AbortController for addEventListener
- Origin Isolation
- Devtools に機能がいっぱい
- Puppetaria でテストをセマンティックに
- Page Experience をランクに反映を 2020/5 に
- Schemfull Samesite
- BlinkOn / Chromium University
- `` の CSS 改善
- H2Push 削除
- Root Program Announce
- Mozilla
- HTTPS Only Mode
- CRLite
- MDN PAB に Igalia 加入
- macOS 14 Big Sur + Safari 14
- translate / extension / webp
- ITP / CNAME Cloaking / Bounce Tracking
- AppCache HTML から削除
- TC39 Module Blocks
- IETF CDN-Cache-Control Header / POST Idempotent Header
- The State of CSS 2020 |
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