ep68 Monthly Web 202005

published_at: 2020-06-01
guest: @myakura
toc: headings

Theme
Show Note

Chrome 動向
Firefox 動向
Safari 動向
Edge 動向
WHATWG/W3C 動向
TC39 動向
IETF 動向
セキュリティ動向
周辺動向
イベント
Wrap Up

Theme

第 68 回のテーマは 2020 年 5 月の Monthly Web です。

Show Note

Chrome 動向

Stable: 83
Updates
- New in Chrome 83
  - https://developers.google.com/web/updates/2020/05/nic83
  - Trusted types
  - Updates to form controls
  - Origin trials
  - Measure memory with measureMemory()
  - Updates to the Native File System API
  - New cross-origin policies
  - Web vitals
  - Barcode Detection API
  - @supports CSS selectors.
  - New ARIA annotations for comments, suggestions, and text highlights (similar to <mark>).
  - prefers-color-scheme
  - modules in shared workers.
- Chromium Blog: Chrome 84 Beta: Web OTP, Web Animations, New Origin Trials and More
  - https://blog.chromium.org/2020/05/chrome-84-beta-web-otp-web-animations.html
  - Web OTP API
  - Web Animations
  - App shortcuts
  - Autoupgrade Image Mixed Content
  - Blocking Insecure Downloads from Secure (HTTPS) Contexts
  - ReportingObserver on Workers
  - Resize Observer Updates
  - revert Keyword
  - Unprefixed Appearance CSS Property
  - Unprefixed ruby-position CSS Property
  - Web Authenticator API: Cross-origin iframe Support
  - Private Methods and Accessors
  - Weak references
  - Deprecations, and Removals
    - @import rules in CSSStyleSheet.replace() Removed
    - Remove TLS 1.0 and TLS 1.1
  - New Origin Trials
    - Cookie Store API
    - Idle Detection
    - Origin Isolation
    - WebAssembly SIMD
  - Completed Origin Trials
    - Content Indexing API
    - Wake Lock API Based on Promises
- Deprecations and removals in Chrome 84
  - https://developers.google.com/web/updates/2020/05/chrome-84-deps-rems
  - @import rules in CSSStyleSheet.replace() removed
  - Remove TLS 1.0 and TLS 1.1
- What's New In DevTools (Chrome 84)
  - https://developers.google.com/web/updates/2020/05/devtools
  - Fix site issues with the new Issues tab
  - View accessibility information in the Inspect Mode tooltip
  - Performance panel updates
  - Layout Shift events in the new Experience section
  - More accurate promise terminology in the Console
  - Support for the revert keyword
  - Image previews
  - Color Picker now uses space-separated functional color notation
  - Deprecation of the Properties pane in the Elements panel
  - App shortcuts support in the Manifest pane
- Chromium Blog: Introducing Web Vitals: essential metrics for a healthy site
  - https://blog.chromium.org/2020/05/introducing-web-vitals-essential-metrics.html
- Chromium Blog: Protecting Chrome users from abusive notifications
  - https://blog.chromium.org/2020/05/protecting-chrome-users-from-abusive.html
- Chromium Blog: Resuming SameSite Cookie Changes in July
  - https://blog.chromium.org/2020/05/resuming-samesite-cookie-changes-in-july.html
  - 延期されていた SameSite=Lax by default を 7/14 の M84 で再開する計画
- Chromium Blog: Protecting against resource-heavy ads in Chrome
  - https://blog.chromium.org/2020/05/resource-heavy-ads-in-chrome.html
- Chromium Blog: A safer and more private browsing experience with Secure DNS
  - https://blog.chromium.org/2020/05/a-safer-and-more-private-browsing-DoH.html
- Chromium Blog: Celebrating 10 years of WebM and WebRTC
  - https://blog.chromium.org/2020/05/celebrating-10-years-of-webm-and-webrtc.html
- Chromium Blog: web.dev LIVE: A digital event over three days and three time zones
  - https://blog.chromium.org/2020/05/webdev-live-digital-event-over-three.html
- Web Vitals
  - https://web.dev/vitals/
  - LCP + FID + CLS
  - Optimize Largest Contentful Paint
    - https://web.dev/optimize-lcp/
    - View Port の最大コンテンツ要素が表示されるまでの時間
    - Preload や SW によるキャッシュヒットなどが有効
  - Optimize First Input Delay
    - https://web.dev/optimize-fid/
    - ユーザの操作に応答できるようになるまでの時間
    - JS の実行を減らす
    - async/defer, dynamic import, minimize
  - Optimize Cumulative Layout Shift
    - https://web.dev/optimize-cls/
    - <img> <video> <iframe> などが表示されレイアウトがずれること
    - あらかじめ領域を確保しておくことで防げる
    - <img> では width/height から自動でアスペクト比が算出される
    - font の FOUT/FOIT も preload / font-display: optional
  - Defining the Core Web Vitals metrics thresholds
    - https://web.dev/defining-core-web-vitals-thresholds/
  - Chromium Blog: The Science Behind Web Vitals
    - https://blog.chromium.org/2020/05/the-science-behind-web-vitals.html
  - Tools to measure Core Web Vitals
    - https://web.dev/vitals-tools/
  - Getting started with measuring Web Vitals
    - https://web.dev/vitals-measurement-getting-started/
  - Best practices for measuring Web Vitals in the field
    - https://web.dev/vitals-field-measurement-best-practices/
  - Official Google Webmaster Central Blog: Evaluating page experience for a better web
    - https://webmasters.googleblog.com/2020/05/evaluating-page-experience.html
    - Core Web Vitals のスコアを Page Experience に入れる
    - Top Story に乗る条件から AMP を外す
    - という変更を来年以降に行い、ロールアウトの半年前には再度通知する
- Making your website "cross-origin isolated" using COOP and COEP
  - https://web.dev/coop-coep/
  - Why you need "cross-origin isolated" for powerful features
    - https://web.dev/why-coop-coep/
- Chromium lands Flexbox gap
  - https://web.dev/flexbox-gap/
  - Flexbox でも Grid の gap プロパティが使えるように
- Persistent storage
  - https://web.dev/persistent-storage/
  - Storage API の永続キャッシュと権限について
  - 権限の付与は以下を考慮して Chrome が自動でプロンプトを出す
    - site-engagement があるか
    - installed/bookmarked されてるか
    - notification permission があるか
  - 永続としてマークされると、領域が圧迫されても消えない
  - 実際領域の圧迫で消えることはほとんどない
  - ユーザが自分で消すことの方が一般的
- Handling Heavy Ad Interventions
  - https://developers.google.com/web/updates/2020/05/heavy-ad-interventions
  - 重たい広告を自動で削除する Intervention について
  - 基準
    - 60s 以上メインスレッドを占有
    - 30s のウインドウ内で 15s 以上メインスレッド占有を
    - 4MB 以上帯域を占有
  - 削除したら Intervention Report を飛ばす
Intents
- Ship: Gutters in flexbox: row-gap and column-gap properties
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/HYDQLFPAHC0/m/BsF9T0wGAAAJ
- Ship: Forced Colors Mode
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/hkjRPJ1-Ruk/m/AS6HBVfCAAAJ
- Ship: App Shortcuts Menu
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/FgzYX7AFbUQ/f2i0-f-BAQAJ
  - installed app にショートカットアイコンを追加できる
- Ship: Promise.any
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/TXMOAEC0AW4/x7_VE87VCQAJ
- Ship: Logical Assignment
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/ttUq_6Bq_FM/8cwxp6nVCQAJ
- Ship: Layout Instability Shifted Element Surfacing
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/18PUl8RwgHg/JHmpT47lAQAJ
- Ship: Event Timing
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/1UQqjz1CR-k/Rdl-wVPkBwAJ
- Ship: Web Bluetooth Remote GATT Characteristic Write With/Without Response
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/1JE8tjylY3s/m/lIJgtnADAgAJ
- Implement and Ship: CSS advanced attr() function
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/FGCgsKmylhw/BSUrk2roCQAJ
- Implement and Ship: Update the behavior of the "disabled" attribute for HTMLLinkElement
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/3izM5vVo98U/m/iDLjz_TwAgAJ
- Implement and Ship: Battery status API gated by feature policy
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/sUs1KsQaXjA/m/l57qc73mAgAJ
- Implement and Ship: WebAuthn getPublicKey[Algorithm]() and getAuthenticatorData()
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/gIINuOdEh1Q/m/AT8MZ_MtAAAJ
- Intent to Implement and Ship: WebAuthn getPublicKey[Algorithm]() and getAuthenticatorData()
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/sAm4neyQybU/m/gu-gO1ctAAAJ
- Implement and Ship: CSS Color Adjust: Remove 'only' and support used 'dark' for preferred 'light' for color-scheme
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/3RhZFvZE1LM/m/2n93K-kPAwAJ
- Prototype: Federated Learning of Cohorts
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/DpZZG5K1PWs/m/IJT1W69wCAAJ
  - ユーザの興味関心を荒く収集し Ad. サーバなどに送るための API
- Prototype: optional total field in PaymentRequest
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/TJVn0Ps9ugA/m/3unr2Vo8AgAJ
- Prototype: Beforematch event
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/QKUZ_ALJdM8/m/d0Qu1wJcAQAJ
  - 検索や id, scroll to text frag でヒットした時に移動する前に発火するイベント
- Prototype: Subresource loading with Web Bundles
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/wYn13HabRN0/L4y4iY1-AgAJ
- Prototype: API for receiving multicast
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/JVKSTHFiDzo/XlduZcFWAgAJ
- Prototype: Client-side video editing (MediaBlob)
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/3eac-HVygFY/m/N_OXaOs7AAAJ
- Prototype: CSS advanced attr() function (Was: Intent to Implement and Ship)
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/viBACPfSsEM/m/URCnDl81AAAJ
- Prototype: Adding adaptivePtime to RTCRtpEncodingParameters.
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/lOi5XonBstA/m/lUMku8g0AwAJ
- Experiment: Cookie Store API
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/bBdx2xIB7OQ/m/k2fMXf-WAAAJ
  - document.cookie の代替 API
  - document/service worker 両方から触れる
  - sw からはより細かい粒度で判断できる
  - 将来的に cookie を無くし state token していく上での布石でもある(cooki を考え直す機会)
- Experiment: Origin isolation
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/G0h3PFPeclA/m/Lqt872UCAAAJ
- Experiment: Trust Token API
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/UIvia1WwIhk/m/DuXLKdF7AgAJ
- Experiment: fetch() upload streaming
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/l7QI1bsq80Y/Z1TJ0nplAQAJ
  - ReadableStream で chunked upload
- Experiment: QuicTransport
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/mHV_ZALf07Q/d7J9W0a1CQAJ
- Extend Origin Trial: performance.measureMemory
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/LuoryMqT7wQ/DEiG_IpAAgAJ
- Extend Experiment: PointerLock unadjusted mouse movement
  - https://groups.google.com/a/chromium.org/g/blink-dev/c/yQ4Rdkrit_g/m/eGnWC9zhAgAJ
- Change:
Unship:
Remove:
Blink launch process update
- https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/R8oZsw6RLGs/l0KOUyuWAQAJ
- intents の公開や Chrome Status への反映などを行ってきた
- chromium を利用したプロジェクトや、関わる人も多くなった
- Chrome Status を Web Status (仮称)として刷新することに
- ドメインも変わる
- Chrome の UMA で取得するメトリクスは chromestatus.com で維持
Planning isolation requirements (COOP/COEP) for SharedArrayBuffer
- https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/_0MEXs6TJhg/F0UduPfpAQAJ
A few clarifications for the API owners process
- https://groups.google.com/a/chromium.org/g/blink-dev/c/2jon7dlhvLo/m/zOWmPnkKAgAJ
Important: change to the "browser signals" section of the intent-to-ship process
- https://groups.google.com/a/chromium.org/g/blink-dev/c/4sKJR-XPghU/m/UoUHsBExAAAJ
v8
- V8 release v8.3 · V8
  - https://v8.dev/blog/v8-release-83
- Up to 4GB of memory in WebAssembly · V8
  - https://v8.dev/blog/4gb-wasm-memory
  - WASM で 4G までのメモリが扱えるようになった
  - そこに向かって発生した変更のまとめ
  - 64bit メモリのサポートにより 4G 超えるアクセスも計画にある
- Understanding the ECMAScript spec, part 4 · V8
  - https://v8.dev/blog/understanding-ecmascript-part-4
- High-performance garbage collection for C++ · V8
  - https://v8.dev/blog/high-performance-cpp-gc
Other
- Preparing for AppCache removal
  - https://web.dev/appcache-removal/
- More variable font options for the macOS system-ui font in Chromium 83
  - https://web.dev/more-variable-font-options-in-chromium-83/
- Get things done quickly with app shortcuts
  - https://web.dev/app-shortcuts/
- Wake Lock API case study: 300% increase in purchase intent indicators on BettyCrocker.com
  - https://web.dev/betty-crocker/
- Detect inactive users with the Idle Detection API
  - https://web.dev/idle-detection/
- What's New in Lighthouse 6.0
  - https://web.dev/lighthouse-whats-new-6.0/
- Web Animations API improvements in Chromium 84
  - https://web.dev/web-animations/
- Profiling Web Audio apps in Chrome
  - https://web.dev/profiling-web-audio-apps-in-chrome/
- AMP + Web Vitals - a better web, together - The AMP Blog
  - https://blog.amp.dev/2020/05/06/amp-web-vitals-a-better-web-together/
- Creating accessible sites with AMP - The AMP Blog
  - https://blog.amp.dev/2020/05/04/creating-accessible-sites-with-amp/
- Web Stories, powered by AMP - The AMP Blog
  - https://blog.amp.dev/2020/05/01/web-stories-powered-by-amp/
- Infinite recommendations with a new and improved amp-next-page - The AMP Blog
  - https://blog.amp.dev/2020/05/12/infinite-recommendations-with-a-new-and-improved-amp-next-page/
- AMP: a well-lit path to optimizing for Google's page experience signal - The AMP Blog
  - https://blog.amp.dev/2020/05/28/amp-page-experience/

Firefox 動向

Stable: 76
Updates
- Firefox 76: Audio worklets and other tricks - Mozilla Hacks - the Web developer blog
  - https://hacks.mozilla.org/2020/05/firefox-76-audio-worklets-and-other-tricks/
  - Fresh in Dev Edition: CSS Compatibility Panel
    - CSS のブラウザ対応が表示される
  - Audio worklets
  - devtools updates
- Firefox 77 Beta and Developer Edition are out, COVID-19 continues to affect the development
  - https://www.fxsitecompat.dev/en-CA/blog/2020/firefox-77-beta-and-developer-edition-are-out-covid-19-continues-to-affect-the-development/
- These Weeks in Firefox: Issue 74 - Firefox Nightly News
  - https://blog.nightly.mozilla.org/2020/05/26/these-weeks-in-firefox-issue-74/
Intents
- Ship: "JS BigInt to I64 integration" WebAssembly proposal
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/D72xparvfC8/1g2GQ6OyAQAJ
- Ship: :read-only / :read-write pseudo-classes
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/3CguC7Mp3yQ/dQIFGug8AQAJ
- Ship: RegExp Named Capture Groups
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/0Z49y1Hdaic/cb5hy62sAAAJ
- Ship: ParentNode#replaceChildren
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/eZ-UZT6rT5g/Jt82qvL5AQAJ
- Ship: and Link: rel=preload support on Nightly and Early Beta
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/MShUZ4VTa6s/E4XFYfL5AQAJ
- Prototype: CSS aspect-ratio in [css-sizing-4]
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/mWViuwFw8b8/HVHJ8yAnAAAJ
- Prototype: ::file-chooser-button
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/70ODk1Gqrzs/CBLgePEkAAAJ
- Prototype: Schemeful Cookie Same-Site
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/8EjoeN7NXrc/TlxdZcSpAgAJ
- Prototype: WebAssembly SIMD
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/Y-IR14CRxGc/CM-rT8-HAQAJ
Other
- May 2020 CA Communication - Mozilla Security Blog
  - https://blog.mozilla.org/security/2020/05/08/may-2020-ca-communication/
- Welcome Adam Seligman, Mozilla's new Chief Operating Officer - The Mozilla Blog
  - https://blog.mozilla.org/blog/2020/05/13/welcome-adam-seligman-mozillas-new-chief-operating-officer/
- High Performance Web Audio with AudioWorklet in Firefox - Mozilla Hacks - the Web developer blog
  - https://hacks.mozilla.org/2020/05/high-performance-web-audio-with-audioworklet-in-firefox/
- Gecko Web Platform Update (2020-05-15)
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/ms-_ExGEm_E/H3SvcHIJAwAJ
  - 隔週で共有するらしい
- Soft code freeze for Firefox 78 starts May 28
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/v9ms3Bgrlrs/7eqsN4aRAQAJ
- Protecting Search and Browsing Data from Warrantless Access - The Mozilla Blog
  - https://blog.mozilla.org/blog/2020/05/22/protecting-search-and-browsing-data-from-warrantless-access/
- The USA Freedom Act and Browsing History - The Mozilla Blog
  - https://blog.mozilla.org/blog/2020/05/22/usa-freedom-and-browsing-history/
- Mozilla's journey to environmental sustainability - The Mozilla Blog
  - https://blog.mozilla.org/blog/2020/05/28/mozillas-journey-to-environmental-sustainability/
- Sharing data on Italy's mid-pandemic internet outage - Data@Mozilla
  - https://blog.mozilla.org/data/2020/05/18/sharing-data-on-italys-mid-pandemic-internet-outage/
- How does the Glean SDK send gzipped pings - Data@Mozilla
  - https://blog.mozilla.org/data/2020/05/26/how-does-the-glean-sdk-send-gzipped-pings/
- Extensions in Firefox 77
  - https://blog.mozilla.org/addons/2020/05/28/extensions-in-firefox-77/
- L10n Report: May 2020 Edition
  - https://blog.mozilla.org/l10n/2020/05/28/l10n-report-may-2020-edition/
- An opportunity for openness and user agency in the proposed Facebook-Giphy merger - Open Policy & Advocacy
  - https://blog.mozilla.org/netpolicy/2020/05/27/an-opportunity-for-openness-and-user-agency-in-the-proposed-facebook-giphy-merger/
- Mozilla Mornings on advertising and micro-targeting in the EU Digital Services Act - Open Policy & Advocacy
  - https://blog.mozilla.org/netpolicy/2020/05/25/mozilla-mornings-on-advertising-and-micro-targeting-in-the-eu-digital-services-act/
- Today is Global Accessibility Awareness Day! - Mozilla Accessibility
  - https://blog.mozilla.org/accessibility/today-is-global-accessibility-awareness-day/
- Firefox Reality for HoloLens 2
  - https://blog.mozvr.com/firefox-reality-hololens/
- Firefox Reality 10
  - https://blog.mozvr.com/firefox-reality-10/

Safari 動向

Stable: 13.1
Updates
- Release Notes for Safari Technology Preview 106
  - https://webkit.org/blog/10580/release-notes-for-safari-technology-preview-106/
  - Enabled async frame and overflow scrolling by default on macOS (r260276)
  - Implemented jump-* functions for steps() timing functions (r261046)
  - Added support for :where() pseudo class (r260319)
  - Fixed :is() and :where() to not allow pseudo-elements when parsing (r260338)
  - Fixed border-radius failing to clip composited iframe contents (r260950)
  - Enabled BigInt (r260345)
  - Changed BigInt constructor to accept larger integers than safe-integers (r260863)
  - Added support for Intl.RelativeTimeFormat (r260349)
  - Redesigned for-of iteration for arrays (r260323)
  - Enabled using credentials for same-origin CSS mask images (r260598)
- Release Notes for Safari Technology Preview 107
  - https://webkit.org/blog/10585/release-notes-for-safari-technology-preview-107/
  - Changed the initial value of transform-box to be view-box to fix some SVG animations (r261752)
  - Changed the cursor to update during the rendering steps, rather than on a 20ms timer (r261741)
  - Fixed repaint issues when the login field collapses on music.apple.com (r261979)
  - Fixed text clipped when rendered with fonts which have a negative line gap metric (r261573)
  - Fixed table sizing when max-width is used (r261924)
  - Changed to ignore a poster set after playback begins (r261341, r261576)
  - Implemented Intl.Locale (r261215)
  - Implemented BigInt.asIntN and BigInt.asUintN (r261156, r261199)
  - Enabled logical assignment operators (r261728)
  - Ensured IntlCollator.prototype.resolvedOptions returns relevant locale extension keys in alphabetical order (r261182)
  - Enabled clipboard API access when pasting from a menu item or key binding (r261825)
  - Implemented accessibility of HTML 5.1 Drag & Drop (r261248)
Position
- Webkit-dev から Position Request についてだけ抜粋
  - 返信は apple の開発者個々人の意見や、apple 外の人からもくる
  - 単純に Yes/No にまとめることはできない
- [webkit-dev] Position on emerging standard: WebCodecs
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031191.html
  - some reply
- [webkit-dev] Position on User-Agent Client Hints
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031195.html
  - some reply
- [webkit-dev] Request for position on named pages and page-orientation
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031216.html
  - no reply
- [webkit-dev] Request for position on content-visibility
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031217.html
  - no reply
- [webkit-dev] Position on emerging standard: Declarative Shadow DOM
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031218.html
  - no reply
- [webkit-dev] Request for position on First-Party Sets
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031221.html
  - some reply
- [webkit-dev] Position on emerging standard: HTMLLinkElement "disabled" attribute behavior
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031223.html
  - no reply
- [webkit-dev] Request for position on Schemeful Same-Site
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031224.html
  - no reply
- [webkit-dev] Position on WebXR Anchors Module
  - https://lists.webkit.org/pipermail/webkit-dev/2020-May/031225.html
  - no reply
Other

Edge 動向

Stable: 83
Build
- MyBuild - Home
  - https://mybuild.microsoft.com/
  - Live Session
    - MyBuild - Moving the web forward with Microsoft Edge and Chromium
      - https://mybuild.microsoft.com/sessions/a0f213d7-66f7-4a6e-a595-4c0d7acb2e6e
    - MyBuild - WebView2: Bringing the best of the web to your native apps
      - https://mybuild.microsoft.com/sessions/2118150e-250b-4a7f-94dd-2a23db4bd7df
    - MyBuild - Microsoft Edge: What's New for Web Developers
      - https://mybuild.microsoft.com/sessions/9198aeac-0c8e-4d32-96d1-cbb99a390aa6
    - MyBuild - Focus Group: Microsoft Products for Web Developers
      - https://mybuild.microsoft.com/sessions/4d581e25-4ec5-4761-a322-74dd4dbcfc95
    - MyBuild - Learn Studio Session: Build a WebAssembly app with Blazor & VS Code
      - https://mybuild.microsoft.com/sessions/b6d02ab0-d1fd-441d-bcb3-8dec25bbc46a
    - MyBuild - From code to scale! Build a static web app in minutes
      - https://mybuild.microsoft.com/sessions/90d1945f-35ab-4703-938c-85db3f1d2083
    - MyBuild - Modern Web UI with Blazor WebAssembly
      - https://mybuild.microsoft.com/sessions/7e6c0b6e-36b9-4b9b-a409-a0960f67531f
    - MyBuild - Expert Q&A: WinRTC, Open Source WebRTC Library
      - https://mybuild.microsoft.com/sessions/b89fd127-4d12-41b3-b67c-91fee11425b7
    - MyBuild - Building a Web for Everyone
      - https://mybuild.microsoft.com/sessions/13da0e38-2147-4714-9334-3c079e6c1920
    - MyBuild - Modern Web UI with Blazor WebAssembly
      - https://mybuild.microsoft.com/sessions/420ccd3f-6570-4c58-91da-cd760c511171
    - MyBuild - Learn Studio Session: Create a website in Azure
      - https://mybuild.microsoft.com/sessions/6bcd6b12-e074-437b-ba8c-0e27d97a8935
    - MyBuild - Moving the web forward with Microsoft Edge and Chromium
      - https://mybuild.microsoft.com/sessions/a0f213d7-66f7-4a6e-a595-4c0d7acb2e6e
Updates
- Everything new from Microsoft Edge at Build 2020
  - https://blogs.windows.com/msedgedev/2020/05/19/microsoft-edge-news-developers-build-2020/
  - Edge リリース後初の Build カンファレンス
  - What's new for web developers
    - WebView2 preview expands to include .NET and UWP (WinUI) development
    - Improvements to the Microsoft Edge Add-ons site make searching and finding extensions easier
    - Making PWAs feel more at home on Windows 10
    - Try out experimental web platform features with Origin Trials
  - New features for every user
    - Collections in Microsoft Edge is getting smarter with a new Pinterest integration
    - Sidebar search provides a faster, more contextual way to look things up
  - New features for information workers and IT Pros
    - New syncing and customization options for IT professionals
    - Data security gets a boost with Windows Information Protection
    - Easily move between work and personal profiles
    - Microsoft Search in Bing puts your work results all in one place
- Origin Trials - Microsoft Edge Developer
  - https://developer.microsoft.com/en-us/microsoft-edge/origin-trials/
  - Edge も Origin Trials を始める
  - Chrome と仕組みは同じ
  - VirtualKeyboardPolicy と PenButtonEvents からから
- Making the web more accessible and inclusive for all with Microsoft Edge
  - https://blogs.windows.com/windowsexperience/2020/05/21/making-the-web-more-accessible-and-inclusive-for-all-with-microsoft-edge/
  - Chromium に取り組み始めてから、150 以上の a11y 機能改善を実施した
  - 「Immersive Reader で開く」ができるように
  - Immersive Reader で翻訳できるように
  - Read Aloud で読み上げ
  - Picture Dictionary の搭載により、単語の隣にそれを示す絵が出る
- Introducing an improved spellcheck experience in Microsoft Edge - Microsoft Edge Blog
  - https://blogs.windows.com/msedgedev/2020/05/28/improved-spellcheck-microsoft-edge-83/
- Introducing the new surf game in Microsoft Edge - Microsoft Edge Blog
  - https://blogs.windows.com/msedgedev/2020/05/26/surf-game-edge-stable/
  - edge://surf でサーフィンゲームができる
- Hi Reddit! We're the team behind Microsoft Edge and we're back for our third AMA. Ask us anything! : MicrosoftEdge
  - https://www.reddit.com/r/MicrosoftEdge/comments/gnweyj/hi_reddit_were_the_team_behind_microsoft_edge_and/
  - Reddit で AMA
Chakra
- Release ChakraCore v1.11.19 · microsoft/ChakraCore
  - https://github.com/microsoft/ChakraCore/releases/tag/v1.11.19
Other
- Using multiple profiles at work and at home is now easier with Microsoft Edge - Microsoft Edge Blog
  - https://blogs.windows.com/msedgedev/2020/04/30/automatic-profile-switching/
- Browser Basics: User Gestures | text/plain
  - https://textslashplain.com/2020/05/18/browser-basics-user-gestures/
- A bit of GREASE keeps the web moving | text/plain
  - https://textslashplain.com/2020/05/18/a-bit-of-grease-keeps-the-web-moving/

WHATWG/W3C 動向

Recommendation
Proposed Recommendation
- Call for Review: JSON-LD 1.1 Specifications are W3C Proposed Recommendations
  - https://www.w3.org/blog/news/archives/8529
- Call for Review: DOM Review Draft - Published 18 June 2019 is a W3C Proposed Recommendation
  - https://www.w3.org/blog/news/archives/8538
Candidate Recommendation
Working Draft
- [CSSWG][css-text-decor-4] Updated WD of CSS Text Decoration L4
  - https://lists.w3.org/Archives/Public/www-style/2020May/0000.html
First Public Working Draft
- First Public Working Draft: Challenges with Accessibility Guidelines Conformance and Testing, and Approaches for Mitigating Them
  - https://www.w3.org/blog/news/archives/8517
- First Public Working Draft: Image Resource
  - https://www.w3.org/blog/news/archives/8526
- First Public Working Draft: CSS Box Sizing Module Level 4
  - https://www.w3.org/blog/news/archives/8552
Chartering
Other
- Migrating "A Well-Known URL for Changing Passwords" to WebAppSec
  - https://lists.w3.org/Archives/Public/public-webappsec/2020May/0001.html
- HTTP Priority - proposal to support headers
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2020AprJun/0070.html
- W3C opens Advisory Board (AB) election
  - https://www.w3.org/blog/news/archives/8519
  - Tantek Ç elik (Mozilla)
  - Heejin Chung (Samsung)
  - Klaus Peter Hoeckner (Hilfsgemeinschaft)
  - Tatsuya Igarashi (Sony)
  - Florian Rivoal (W3C Invited Expert)
  - Tzviya Siegman (Wiley)
  - David Singer (Apple)
  - Alan Stearns (Adobe)
- W3C Website Redesign Discovery Phase: New Survey
  - https://lists.w3.org/Archives/Public/www-style/2020May/0001.html
  - サイト更新に先立つアンケート
- CfC: Renaming Feature Policy to Permissions Policy
  - https://lists.w3.org/Archives/Public/public-webappsec/2020May/0008.html
  - feature-policy が permission-policy に rename
  - https://github.com/w3c/webappsec-feature-policy/pull/379
- design principles for new CSS features
  - https://lists.w3.org/Archives/Public/www-style/2020May/0009.html
- W3C Strategic Highlights, May 2020
  - https://www.w3.org/blog/news/archives/8564

TC39 動向

Meeting
- 2020-06
  - 6/1-4, Remote で実施
  - agendas/06.md at master · tc39/agendas
    - https://github.com/tc39/agendas/blob/master/2020/06.md
Proposals Diff
- https://github.com/tc39/proposals/compare/master@{2020-05-01}...master@{2020-06-01}
- https://tc39.github.io/beta/
- 0->1
- 1->2
- 2->3
- 3->4
New Proposals
- proposal-intl-enumeration: Return supported values of options, such as timeZone, calendars, numberingSystems, currencies, units, regions, scripts
  - https://github.com/FrankYFTang/proposal-intl-enumeration
  - サポートされている言語設定などを取得できる API
Other

Wrap Up

Core Web Vitals 発表
MS Build
Edge の Origin Trials 開始
Gecko Web Platform Update 開始
Firefox Devtools が活発
WebKit の Request for Position のトラッキング開始
Feature Policy から Permission Policy への Rename