ep76 Monthly Web 202011 | mozaic.fm

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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* - 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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