ep82 Monthly Web 202104

published_at: 2021-05-09
guest: @myakura
guest: @flano_yuki
guest: @sosukesuzuki
toc: headings

Theme
Show Note

Chrome 動向

Stable: 90
Updates
Intents
V8
Other

Firefox 動向

Stable: 88
Updates
Intents
Other

Safari 動向

Stable: 14.0.3
Updates
Position
Other

Edge 動向

Stable: 90
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

Akamai
Cloudflare
Fastly
Other

セキュリティ動向
周辺動向
イベント
Wrap Up

Theme

第 82 回のテーマは 2021 年 4 月の Monthly Web です。

Show Note

Chrome 動向

Stable: 90

Updates

Chromium Blog: Chrome 91: Handwriting Recognition, WebXR Plane Detection and More
- https://blog.chromium.org/2021/04/chrome-91-handwriting-recognition-webxr.html
- Origin Trials
  - New Origin Trials
    - Declarative Link Capturing for PWAs
    - WebTransport
    - WebXR Plane Detection API
  - Completed Origin Trials
    - battery-savings Meta Tag
    - Searching Hidden Text
    - WebAssembly SIMD
- Other features in this release
  - Align performance API timer resolution to cross-origin isolated capability
  - Clipboard: Read-Only Files Support
  - CSS
    - Custom Counter Styles
    - Single <compound-selector> for :host() and :host-context()
  - Form Controls Visual Refresh on Android
  - GravitySensor Interface
  - SharedArrayBuffers on Desktop Platforms Restricted to Cross-Origin Isolated Environments
  - Suggested file name and location for the File System Access API
  - WebOTP API: cross-origin iframe support
  - WebSockets over HTTP/2
  - Credentials sharing for sites affiliated with Digital Asset Links
- JavaScript
  - ES Modules for service workers ('module' type option)
  - Checks for Private Fields

Intents

Ship: Add dayPeriod option for Intl.DateTimeFormat
- https://groups.google.com/a/chromium.org/g/blink-dev/c/7zqShg05D3c/m/P7oL2E7FAQAJ
Ship: ALPS and ACCEPT_CH HTTP/2 and HTTP/3 frames
- https://groups.google.com/a/chromium.org/g/blink-dev/c/6EoEnqxqhsk/m/WC4kkMCAAQAJ
Ship: navigator.webdriver === false when automation is not enabled.
- https://groups.google.com/a/chromium.org/g/blink-dev/c/h-5nQQLs2QU/m/iRVKU4LhAgAJ
Ship: Cookie Store API on local secure contexts
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ekdeaj09c0w/m/gK9lu568AgAJ
- Cookie Store API が secure context に限定され、 localhost などにも公開されてなかった
- HTTPS サーバが無くても試せるよう localhost などにも公開する
Ship: Final specified imperative slot distribution behavior
- https://groups.google.com/a/chromium.org/g/blink-dev/c/6U78F3KWJ78/m/hcEoYVx8AgAJ
Ship: Allow Navigator.registerProtocolHandler to register "ftp"
- https://groups.google.com/a/chromium.org/g/blink-dev/c/ABhlioapE0E/m/gXL84wPfAAAJ
Implement and Ship: Block HTTP port 10080
- https://groups.google.com/a/chromium.org/g/blink-dev/c/CNpLNXx2wf0/m/Ehi3cx1YAQAJ
Implement and ship: Media Session API: Video conferencing actions
- https://groups.google.com/a/chromium.org/g/blink-dev/c/sXhlwO_R9To/m/q7QuMyc_AQAJ
Implement and Ship: Implement :playing, :paused pseudo-classes
- https://groups.google.com/a/chromium.org/g/blink-dev/c/kz3w-yOMDks/m/Ue71o4xYAAAJ
- audio/video が再生中かどうかなどを取得する擬似クラス
Prototype: auto keyword for contain-intrinsic-size
- https://groups.google.com/a/chromium.org/g/blink-dev/c/loqGn7N9hzU/m/mRDdLA_cAgAJ
- content-visibility: auto との組み合わせでページの大きさががたがた変わってしまうのを防ぐために、contain-intrinsic-size に新しく auto というキーワードを追加する
Prototype: Service Worker subresource filter
- https://groups.google.com/a/chromium.org/g/blink-dev/c/uEcgVgTJ5qA/m/bemJBwikBAAJ
- 全 Request が onfetch にヒットするとオーバーヘッドが大きい
- 必要なもののみ onfetch にヒットするように Service-Worker-Subresource-Filter のみにする
Implement and ship: tainted origin flag in Timing Allow Origin
- https://groups.google.com/a/chromium.org/g/blink-dev/c/V5jFCsw8J2M/m/VBg0oh2_AwAJ
Experiment: WebTransport over HTTP/3
- https://groups.google.com/a/chromium.org/g/blink-dev/c/aaLFxzw5zL4/m/H3V_l-qlAgAJ
Experiment: Network State Partitioning
- https://groups.google.com/a/chromium.org/g/blink-dev/c/sLC_W6B8big/m/5sk787RQBAAJ
- side channel を防ぐために、グローバルで共有されるネットワーク状態も分離する
- connection (H1,2,3, websocket), DNS cache, ALPN/H2 data, TLS/H3 resumption, Reporting/NEL, Expect-CT etc.
Experiment: New Canvas 2D API
- https://groups.google.com/a/chromium.org/g/blink-dev/c/bEgFQrTsDso/m/9wD9tqxQBAAJ
Extend Origin Trial: Trust Token API (Take 2)
- https://groups.google.com/a/chromium.org/g/blink-dev/c/-W90wVkS0Ks/m/HyICZtuuBAAJ
Change:
Unship:
Remove:
Deprecate and Remove: RTCConfiguration.offerExtmapAllowMixed
- https://groups.google.com/a/chromium.org/g/blink-dev/c/Plik-x6biZ0/m/eJ8P1iy0AQAJ

V8

Private brand checks a.k.a #foo in obj
- https://v8.dev/features/private-brand-checks
- https://github.com/tc39/proposal-private-fields-in-in/blob/main/README.md

Other

web.dev
- Evolving the CLS metric
  - https://web.dev/evolving-cls/
- Take the 2021 scroll survey to help improve scrolling on the web
  - https://web.dev/2021-scroll-survey/
  - scroll 関連 API や実装に関するアンケート
- Fill OTP forms within cross-origin iframes with WebOTP API
  - https://web.dev/web-otp-iframe/
- Building split text animations
  - https://web.dev/building-split-text-animations/
- Customize the window controls overlay of your PWA's title bar
  - https://web.dev/window-controls-overlay/
  - Title Bar にコンテンツを埋め込む方法
- Keeping third-party scripts under control
  - https://web.dev/controlling-third-party-scripts/
- Mainline Menswear implements PWA and sees a 55% conversion rate uplift
  - https://web.dev/mainline-mensware/
- Breaking down barriers using the DataTransfer API
  - https://web.dev/datatransfer/
  - drag and drop などの UI で Window 間でデータをやりとりする API
google developer blog
- Announcing the Sustainable Monetized Websites video series
  - https://developers.google.com/search/blog/2021/04/sustainable-monetized-websites
- Get started with signed exchanges on Google Search
  - https://developers.google.com/search/docs/advanced/experience/signed-exchange
  - Google 検索結果でこれまで AMP のみ SXG による Prefetch が対応されていた
  - これが AMP 以外のサイトでも Prefetch されるようになった
- More time, tools, and details on the page experience update
  - https://developers.google.com/search/blog/2021/04/more-details-page-experience?hl=ja
  - Page Experience Update の続報
  - 5 月とアナウンスされていたが 6 月中旬ロールアウト開始に
  - Search Console にページエクスペリエンスのダッシュボードが追加される
  - Google 検索での Non AMP SXG 対応
google developer japan blog
- https://developers-jp.googleblog.com/
chromium blog
- Chromium Blog: Don't Copy That Surface
  - https://blog.chromium.org/2021/04/dont-copy-that-surface.html
- Chromium Blog: Efficient And Safe Allocations Everywhere!
  - https://blog.chromium.org/2021/04/efficient-and-safe-allocations-everywhere.html
- Chromium Blog: Digging for performance gold: finding hidden performance wins
  - https://blog.chromium.org/2021/04/digging-for-performance-gold.html
- Chromium Blog: Help users log in across affiliated sites on Chrome
  - https://blog.chromium.org/2021/04/help-users-log-in-across-affiliated.html
amp
- Privacy-preserving instant loading for all web content
  - https://blog.amp.dev/2019/05/22/privacy-preserving-instant-loading-for-all-web-content/
canary
- https://www.chromium.org/getting-involved/dev-channel
3/22 の WebView 障害について障害レポートが出た
- https://static.googleusercontent.com/media/www.google.com/en//appsstatus/ir/fw6156fs1panucr.pdf
- A bug within Chrome & WebView's experiment & configuration technology caused instability for Android applications which incorporated WebView to surface web content.

Firefox 動向

Stable: 88

Firefox 88.0, See All New Features, Updates and Fixes
- https://www.mozilla.org/en-US/firefox/88.0/releasenotes/
Firefox 88 for developers - Mozilla
- https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/88
- :user-valid, :user-invalid
- image-set()
- outline プロパティによるアウトラインが border-radius に沿うように
- RegExp match indices
  - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec
  - https://v8.dev/features/regexp-match-indices
Never too late for Firefox 88 - Mozilla Hacks - the Web developer blog
- https://hacks.mozilla.org/2021/04/never-too-late-for-firefox-88/
Firefox 88 combats window.name privacy abuses - Mozilla Security Blog
- https://blog.mozilla.org/security/2021/04/19/firefox-88-combats-window-name-privacy-abuses/
- window.name プロパティはその性質からナビゲーションをまたいで保持されていた
- クロスオリジンのナビゲーションでも保持されるので、トラッキングに使われていた
- トラッキングを防ぐため、サイトをまたぐナビゲーションの場合に window.name を空にするように
  - トラッキング以外で使われているコードにも影響が出るので、ポップアップウインドウなどは対象外
  - 戻るボタンなどで戻った場合は、window.name の値を復元する

Updates

QUIC and HTTP/3 Support now in Firefox Nightly and Beta - Mozilla Hacks - the Web developer blog
- https://hacks.mozilla.org/2021/04/quic-and-http-3-support-now-in-firefox-nightly-and-beta/
- Firefox 88 から Stable でも段階的ロールアウト開始予定、 5 月末までにはデフォルトで有効になる
SpiderMonkey Newsletter 10 (Firefox 88-89)
- https://spidermonkey.dev/blog/2021/04/22/newsletter-10.html

Intents

Ship: forced-colors
- https://groups.google.com/g/mozilla.dev.platform/c/zwDaj0JMYjs/m/roFqKU9HAQAJ
Ship: Large ArrayBuffers and large wasm memories
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/90hVJF-X9c4
Ship: @font-face metrics override descriptors
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/eeo02Z1x7NU
Implement and Ship: Block HTTP port 10080
- https://groups.google.com/a/chromium.org/g/net-dev/c/bhYOhj4WJC8/m/B1qpE040CAAJ
Prototype: WebAssembly extended constants
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/trMP9CP0_go
Prototype: WebAssembly relaxed SIMD
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/it0bm-mipDQ
Unship: -moz-outline-radius (now that we follow the border-radius curve for outlines)
- https://groups.google.com/a/mozilla.org/g/dev-platform/c/atwrUuiMa-U

Other

TC39 Proposal Temporal · Issue #498 - mozilla/standards-positions
- https://github.com/mozilla/standards-positions/issues/498#issuecomment-817512705
- 先月話した件、 Anne 的には "that is fine" とのこと
- 以下の 3 つがわかった
  - stage 3 なら mozilla は少なくとも harmful じゃない
  - harmful ならそもそも stage 3 にはならない
  - temporal は worth prototyping
These Weeks in Firefox: Issue 91 – Firefox Nightly News
- https://blog.nightly.mozilla.org/2021/04/12/these-weeks-in-firefox-issue-91/
Notes on Implementing Vaccine Passports - The Mozilla Blog
- https://blog.mozilla.org/blog/2021/04/22/notes-on-implementing-vaccine-passports/
- ワクチン接種証明の仕組みについて
- Unforgeability, Information minimization, Untraceability が必要
  - US の証明は紙ベース、生年月日が記載されているなど課題がある
- 改ざんに強い接種証明情報の仕組み(物理的もしくはデジタルな)が求められる
  - 物理的なものはスケールしにくい
  - デジタル証明による仕組みがいいんじゃないか

Safari 動向

Stable: 14.0.3

Updates

Introducing CSS Grid Inspector
- https://webkit.org/blog/11588/introducing-css-grid-inspector/

Position

[webkit-dev] Request for position: ALPS and ACCEPT_CH HTTP/2 and HTTP/3 frames
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031768.html
[webkit-dev] Fwd: Request for position: Dedicated workers as service worker clients
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031774.html
[webkit-dev] Request for position: Cryptographically secure random UUIDs
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031783.html
[webkit-dev] Request for position on First-Party Sets
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031784.html
[webkit-dev] Request for position: contain-intrinsic-size auto & longhands
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031787.html
[webkit-dev] Request for position: tainted origin flag affecting Timing Allow Origin
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031788.html
[webkit-dev] Request for Position: COLR v1 Vector Color Fonts
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031789.html
[webkit-dev] Request for position: Element/FrozenArray IDL attribute reflection
- https://lists.webkit.org/pipermail/webkit-dev/2021-April/031790.html\

Other

Edge 動向

Stable: 90

Updates

https://docs.microsoft.com/en-us/deployedge/microsoft-edge-relnote-stable-channel
- ここでも見れる
https://twitter.com/MSEdgeDev
- これを見るしか無い

Chakra

Other

Get your extensions featured on the Microsoft Edge Add-ons home page - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/articles/get-your-extensions-featured-on-the-microsoft-edge-add-ons-home/m-p/2260862
Dev channel update to 91.0.864.1 is live - Microsoft Tech Community
- https://techcommunity.microsoft.com/t5/discussions/dev-channel-update-to-91-0-864-1-is-live/m-p/2280695
Introducing Microsoft Edge Kids Mode, a safer space for your child to discover the web
- https://blogs.windows.com/windowsexperience/2021/04/15/introducing-microsoft-edge-kids-mode-a-safer-space-for-your-child-to-discover-the-web/
Keeping your family safer online with Microsoft Edge and celebrating 1 year of Give with Bing
- https://blogs.windows.com/windowsexperience/2021/04/15/keeping-your-family-safer-online-with-microsoft-edge-and-celebrating-1-year-of-give-with-bing/
Feature differences between Microsoft Edge and WebView2 - Microsoft Edge Development
- https://docs.microsoft.com/en-us/microsoft-edge/webview2/concepts/browserfeatures
Microsoft Edge - Internet Explorer mode and compatibility - YouTube
- https://www.youtube.com/watch?v=BlbuMbs6bKA
5/25-27 Microsoft Build 2021
- https://japan.zdnet.com/article/35168829/
- 詳細はまだ

WHATWG/W3C 動向

Draft

Recommendation
- Web Authentication: An API for accessing Public Key Credentials Level 2 is a W3C Recommendation
  - https://www.w3.org/blog/news/archives/9010
Proposed Recommendation
- [webperf] Call for Consensus - Publishing Beacon to PR
  - https://lists.w3.org/Archives/Public/public-web-perf/2021Apr/0007.html
Candidate Recommendation
- [webperf] Call for Consensus - CR publishing
  - https://lists.w3.org/Archives/Public/public-web-perf/2021Apr/0006.html
    - Performance Timeline L2 https://www.w3.org/TR/performance-timeline-2/
    - Resource Timing L2 https://www.w3.org/TR/resource-timing-2/
    - User Timing L3 https://www.w3.org/TR/user-timing-3/
Working Draft
First Public Working Draft
- First Public Working Drafts for WebCodecs
  - https://www.w3.org/blog/news/archives/9003
Chartering
- Web & Networks Interest Group Charter Approved
  - https://lists.w3.org/Archives/Public/public-new-work/2021Apr/0003.html
  - (Meetings)
    - https://www.w3.org/wiki/Networks
    - 4 月ミーティング「Multicast Receiver」
    - https://www.w3.org/2011/webtv/wiki/images/9/94/Multicast%2C_2021-04_%40W3C_Video_Interest_group-v2.pdf
- Spec Editors Community Group created
  - https://lists.w3.org/Archives/Public/public-new-work/2021Apr/0007.html
- Accessible Platform Architectures Working Group
  - https://lists.w3.org/Archives/Public/public-new-work/2021Apr/0011.html

Other

WEBRTC WG Virtual Interim
- https://lists.w3.org/Archives/Public/public-webrtc/2021Apr/0005.html
WebTransport Bi-weekly Virtual Meeting
- https://www.w3.org/wiki/WebTransport/Meetings
WebAppsec Meeting
- https://github.com/w3c/webappsec/blob/main/meetings/2021/2021-04-20-agenda.md
2021 年 03 月 W3C 活動概要
- https://w3ckeio.github.io/monthly-summary/202103.html

TC39 動向

Meeting

2021-04
- Agenda for the 82nd meeting of Ecma TC39
  - https://github.com/tc39/agendas/blob/master/2021/04.md
- TODO: note
  - https://github.com/tc39/notes

Proposals Diff

New Proposals

tc39/proposal-accessible-object-hasownproperty
- https://github.com/tc39/proposal-accessible-object-hasownproperty
- Object.prototype.hasOwnProperty のスタティックメソッド版
tc39/proposal-change-array-by-copy:
- https://github.com/tc39/proposal-change-array-by-copy
- イミュータブルな配列操作メソッドたち
Jack-Works/proposal-readonly-arraybuffer
- https://github.com/Jack-Works/proposal-readonly-arraybuffer/
- ArrayBuffer をフリーズするインスタンスメソッド
Jack-Works/proposal-arraybuffer-fixed-view
- https://github.com/Jack-Works/proposal-arraybuffer-fixed-view
- .buffer にアクセスできない ArrayBuffer

Other

https://github.com/tc39/notes/blob/master/meetings/2021-03/mar-10.md#promiseanysettled
Pattern matching updates - HackMD
- https://hackmd.io/@mpcsh/HkZ712ig_#/

IETF 動向

WG

IETF
- https://datatracker.ietf.org/meeting/
httpwg
- https://lists.w3.org/Archives/Public/ietf-http-wg/
- https://github.com/httpwg/wg-materials/
- WGLC for Proxy Status
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0024.html
- I-D Action: draft-ietf-httpbis-message-signatures-03.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0021.html
- I-D Action: draft-ietf-httpbis-digest-headers-05.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0029.html
- I-D Action: draft-ietf-httpbis-cache-header-08.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0046.html
- I-D Action: draft-ietf-httpbis-message-signatures-04.txt
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0053.html
- Publication has been requested for draft-ietf-httpbis-messaging-15
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0031.html
- Publication has been requested for draft-ietf-httpbis-semantics-15
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0032.html
- Publication has been requested for draft-ietf-httpbis-cache-15
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0033.html
- Publication has been requested for draft-ietf-httpbis-cache-header-08
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0050.html
- BCP56bis - remaining work
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0048.html
- ANN: Scheduling our next Interim Meeting
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0045.html
  - Currently, we're looking at June 15 and 17, at 21:00 UTC:
- Removals from HTTP/2
  - https://lists.w3.org/Archives/Public/ietf-http-wg/2021AprJun/0055.html
  - Upgrade と Priority を H2 から削除する最終確認
quicwg
- https://mailarchive.ietf.org/arch/browse/quic/
- https://github.com/quicwg/wg-materials
- QUIC 2021-04-21 Interim Meeting Minutes
  - https://github.com/quicwg/wg-materials/blob/main/interim-21-04/minutes.md
- QUIC Version 2
  - https://www.ietf.org/archive/id/draft-duke-quic-v2-00.html
  - F5 の人がバージョンネゴシエーションを試すために考えたもの
webtrans
- https://mailarchive.ietf.org/arch/browse/webtransport/
- https://github.com/DavidSchinazi/webtrans-wg-materials
tlswg
wpack
- https://mailarchive.ietf.org/arch/browse/wpack/
privacypass
dispatch
- https://mailarchive.ietf.org/arch/browse/dispatch/
  - Date and Time on the Internet: Timestamps with additional information
    - https://tools.ietf.org/html/draft-ryzokuken-datetime-extended-01
secdispatch
- https://mailarchive.ietf.org/arch/browse/secdispatch/
masque
- interim
  - https://datatracker.ietf.org/meeting/interim-2021-masque-03/session/masque
- The CONNECT-IP HTTP Method
  - https://www.ietf.org/archive/id/draft-cms-masque-connect-ip-00.html
other

Other

DCtheTall/CHIPS: A proposal for a cookie attribute to partition cross-site cookies by top-level site
- https://github.com/DCtheTall/CHIPS
- SameSite=None; Secure; HttpOnly; Path=/; Partitioned; と Partitioned 属性をつける
- 3rd Party Cookie が 1st Party に紐づけて保存されその組み合わせだけで送られるようになる
- 全ての 3rd Party Cookie をブロックすることに対する緩和策
[mikewest/cookie-incrementalism] Origin-Bound Cookies
- https://github.com/mikewest/cookie-incrementalism/pull/4
Re: [E] Re: HTTP State Tokens
- https://lists.w3.org/Archives/Public/public-privacycg/2021Apr/0006.html
- HTTP State Tokens の現状について質問があり Mike West が回答
- インクリメンタルに Cookie を更新していくことにどちらかというとみんな興味があるため、ホールドする
Updating HTTP Caching Policy in Trailers
- https://www.ietf.org/archive/id/draft-nottingham-cache-trailers-00.html

CDN 動向

Akamai

2021 年:急速に増加するボリューム型 DDoS 攻撃 - Akamai Japan Blog
- https://blogs.akamai.com/jp/2021/04/2021-volumetric-ddos-attacks-rising-fast.html
Akamai 、新たなピークトラフィックを記録 - さらに「その先」を見据えて - Akamai Japan Blog
- https://blogs.akamai.com/jp/2021/04/akamai-2.html
- 3 月にエッジのトラフィックが 200Tbps を記録
- 1 杯のコーヒーを 1 メガバイトとした場合、 200 Tbps は、すべてのニューヨーク市民に 1 分あたり 180 杯以上のコーヒーを提供したことになります。

Cloudflare

Cloudflare Pages is now Generally Available
- https://blog.cloudflare.com/cloudflare-pages-ga/
Expanding the Cloudflare Workers Observability Ecosystem
- https://blog.cloudflare.com/observability-ecosystem/
Announcing Cloudflare Workers Unbound for General Availability
- https://blog.cloudflare.com/workers-unbound-ga/
Improve your page experience with AMP and Cloudflare Workers Unbound
- https://blog.cloudflare.com/amp-optimizer-on-cloudflare-workers/
Introducing WebSockets Support in Cloudflare Workers
- https://blog.cloudflare.com/introducing-websockets-in-workers/
Introducing workers.new, custom builds, and improved logging for Workers
- https://blog.cloudflare.com/workers-new-custom-builds-and-improved-logging/
Announcing Cloudflare Images beta to simplify your image pipeline
- https://blog.cloudflare.com/announcing-cloudflare-images-beta/

Fastly

Other

セキュリティ動向

Apple の iOS 14 リリースが広告やレポートに及ぼしうる影響 | Facebook Business ヘルプセンター
- https://www.facebook.com/business/help/331612538028890?id=428636648170202
- AppTrackingTransparency に基づく Facebook Pixel ユーザへの注意喚起とガイドラインが FB から公開された
  - https://developer.apple.com/jp/app-store/user-privacy-and-data-use/
- ATT の影響があっても効果的な広告が提供できるように Aggregated Event Measurement を提供することに
  - https://www.facebook.com/business/help/721422165168355
- これを使うにはドメイン認証が必要になる
  - https://www.facebook.com/business/help/245311299870862
  - ドメイン認証は eTLD + 1 の範囲で Public Suffix List を見る
- その結果、 PSL への追加リクエストが急増している
  - https://github.com/publicsuffix/list/issues/1245
  - FB も FB Pixel のために PSL 追加リクエストをすることは推奨しないと書いてはいる
- PSL のメンテナンスはボランティアベースなので困っている
- blog

周辺動向

アドレスバーに "entry.new" と入力すると、はてなブログの記事が書けるようになりました! - はてなブログ開発ブログ
- https://staff.hatenablog.com/entry/2021/04/07/101249
Is WebAssembly magic performance pixie dust? - surma.dev
- https://surma.dev/things/js-to-asc/
My Drafts - Modern Web Development with Chrome by Paul Kinlan
- https://paul.kinlan.me/my-drafts/
FLoC 無効化や FLoC への懸念・批判
- Use DuckDuckGo Extension to Block FLoC, Google's New Tracking Method in Chrome
  - https://spreadprivacy.com/block-floc-with-duckduckgo/
- No, Google! Vivaldi users will not get FloC'ed.
  - https://vivaldi.com/blog/no-google-vivaldi-users-will-not-get-floced/
- Why Brave Disables FLoC
  - https://brave.com/why-brave-disables-floc/
- Firefox, Edge, Safari, and other browsers won't use Google's new FLoC ad tech - The Verge
  - https://www.theverge.com/2021/4/16/22387492/google-floc-ad-tech-privacy-browsers-brave-vivaldi-edge-mozilla-chrome-safari
Jake Archibald の F1 チームのサイト診断
- Who has the fastest F1 website in 2021? Part 6
  - https://jakearchibald.com/2021/f1-perf-part-6/
- Who has the fastest F1 website in 2021? Part 7
  - https://jakearchibald.com/2021/f1-perf-part-7/
- Who has the fastest F1 website in 2021? Part 8
  - https://jakearchibald.com/2021/f1-perf-part-8/

イベント

5 月
- 18-20: Google I/O '21
  - https://events.google.com/io/
- 12-14: BlinkOn 14
  - https://www.chromium.org/events/blinkon-14
- 25-27: Microsoft Build 2021
  - https://japan.zdnet.com/article/35168829/
  - 詳細はまだ
6 月
- 7-11: WWDC 2021
  - https://developer.apple.com/wwdc21/
- 15-17: httpwg interim
- 24-30: IETF111
  - https://www.ietf.org/how/meetings/111/
7 月
- 13-16: TC39 meeting Tokyo
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

Ch: WebSocket over H2
Ch: ES Module for SW
Ch: H2 / H3 ALPS - ACCEPT_CH
Ch: SW subresource filter
Ch: Network State Partitioning
Ch: Net slipstream port 10080 blocking
Ch: WebTransport over H3 OT
Ch: Scroll Survay
Ch: SXG on Search Result
Ch: Page Experience Rollout が 6 月中旬
FF: window.name からの inforeak 対策
FF: QUIC / H3 Rollout 開始
FF: Top level await
FF: import assertions 実装開始
Wk: FPS negative
Ed: WebView / Edge の違いドキュメント
W3C: WebCodecs FPWD
W3C: Web & Networks IG
TC39: array by copy
TC39: object-has (0 -> 2 に一気に)
TC39: class features が 4 に
TC39: pattern matching updates
IETF: Proxy Status WGLC
IETF: Cache Status updates
IETF: Upgrade / Priority remove from h2
IETF: CHIPS / cookie incrementalism / state token
IETF: semantics publication request
Security: PSL が辛い
周辺: .new ドメインめっちゃ増えてる
周辺: FLoC への風当たりが強い