ep64 Monthly Web 202002

published_at: 2020-03-02
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

Theme

第 64 回のテーマは 2020 年 2 月の Monthly Web です。

Show Note

Chrome 動向

Stable: 80
Updates
- New in Chrome 80
  - https://developers.google.com/web/updates/2020/02/nic80
  - Modules in workers
  - Optional chaining in JavaScript
  - New Origin Trials
    - Content indexing API
    - Notification triggers
    - Web Serial
    - The ability for PWAs to register as file handlers
    - New properties for the contact picker
  - Graduated from origin trial
    - scroll to text fragment
    - display: minimal-ui
    - SVG favicon
- The Chromium Chronicle: Catching UI Regressions with Pixel Tests
  - https://developers.google.com/web/updates/2020/02/chromium-chronicle
- Adding notification permission data to the Chrome User Experience Report
  - https://developers.google.com/web/updates/2020/02/notification-permission-data-in-crux
- Trusted Web Activities, the Lay of the Land
  - https://developers.google.com/web/updates/2020/02/twa-lay-of-the-land
- Chromium Blog: Protecting users from insecure downloads in Google Chrome
  - https://blog.chromium.org/2020/02/protecting-users-from-insecure.html
  - 平文通信のダウンロードを段階的にできないように
- Chromium Blog: Videos with fewer intrusive ads
  - https://blog.chromium.org/2020/02/videos-with-fewer-intrusive-ads.html
  - 長い動画広告を中断するように
- Chromium Blog: SameSite Cookie Changes in February 2020: What You Need to Know
  - https://blog.chromium.org/2020/02/samesite-cookie-changes-in-february.html
- Chromium Blog: Chrome 81: Near Field Communications, Augmented Reality, and More
  - https://blog.chromium.org/2020/02/chrome-81-near-field-communications.html
  - Web NFC for mobile
  - Augmented Reality and Hit Testing
  - PointerLock unadjustedMovement Origin Trials
  - Buffered Flag for Long Tasks
  - CSS image-orientation property
  - CSS Color Adjust: color-scheme
  - Exclude Implicit Tracks from grid-template-rows and grid-template-columns Resolved Values
  - hrefTranslate attribute on HTMLAnchorElement
  - IntersectionObserver Document Root
  - Modernized Form Controls
  - Move onwebkit{animation,transition}XX handlers to GlobalEventHandlers
  - Position State for Media Session
  - SubmitEvent
  - WebAudio: ConvolverNode.channelCount and channelCountMode
  - RTCPeerConnection.onicecandidateerror event changes
  - onclosing Event for RTCDataChannel
  - WorkerOptions for shared workers constructor
  - WritableStream.close()
  - Intl.DisplayNames()
  - Deprecation and Remove "basic-card" support Payment Handler
  - Remove supportedType field from BasicCardRequest
  - Remove the <discard> element
  - Remove TLS 1.0 and TLS 1.1
  - TLS 1.3 downgrade hardening bypass
- Interact with NFC devices on Chrome for Android
  - https://web.dev/nfc/
- Augmented reality: You may already know it
  - https://web.dev/web-ar/
- Virtual reality comes to the web, part II
  - https://web.dev/vr-comes-to-the-web-pt-ii/
- Positioning virtual objects in real-world views
  - https://web.dev/ar-hit-test/
Intents
- Ship: Insecure Download Blocking in Secure Contexts
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/ExW7oa5kMrk/Y7x7cxMTAwAJ
- Ship: Simplified auto-disabling of -webkit-appearance
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/uNKeyd8091A/eBJIdtXqAgAJ
- Ship: IndexedDB relaxed durability transactions
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/P7Jpm9JW6q8/bhl3sT5bBgAJ
- Ship: Support ARIA Annotations from ARIA 1.3 draft
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/2uume_z0n8M/dUFRWmVNBgAJ
- Ship: disallowdocument access iframe attribute
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/TzuPAx9ZOk0/HYOf3FFFBgAJ
- Ship: CSS contain-intrinsic-size
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/Dbpth-n7LZo/vtyZAmMIBgAJ
- Ship: Custom state pseudo class
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/dJibhmzE73o/jzB1zkJeCQAJ
  - Custom Component などで独自の疑似クラスを定義できる
- Implement and Ship: 'font-display: optional' without relayout
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/QsgMjIyO8qA/RWWWukoaAgAJ
- Prototype and Ship: support "JIS-B5" and "JIS-B4" @page sizes
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/nlHnGz-oj-Y/mdPEneaOBwAJ
- Prototype: input.rawValue
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/FMPV2LCc0Ho/X4minYyAAQAJ
- Prototype: MediaCapabilities: Query HDR with decodingInfo()
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/jBzVLBz-Yk4/ORuQg2zAEwAJ
- Prototype: prefers-reduced-data
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/oNJTem41LBs/CA4Nx05aAwAJ
  - Save-Data の CSS 版
  - Data Saver などが有効な場合に、 background-image を無くすとか
- Prototype: CanMakePaymentEvent.respondWithMinimalUI
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/kTLpgFJz6Ck/IQeiGDtOAwAJ
- Prototype: CSS primitives for foldable devices
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/KsPRO3hkOGw/md4jgIAaAgAJ
  - 折りたたみデバイス向けの CSS
- Prototype: Delegated Ink Trail
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/JeGBzAfR_Bw/Ppo1u7ofBgAJ
- Prototype: WebRTC RTP header extension control
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/65YdUi02yZk/dXL1a8PYBQAJ
- Prototype: Declarative Shadow DOM
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/nJDc-1s3R9U/uCJKsEqpAwAJ
  - 宣言的な Shadow DOM の定義
  - <template shadowroot="open"> にするとその下が Shadow DOM として扱われる
  - Shadow DOM が SSR できる
- Prototype: Media Feeds
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/D1sGl6UkCzs/bSiEw3rlCAAJ
  - Web App Manifest に "dataFeedElement" を追加
  - RSS などがあることを UA に伝える
- Prototype: Imperative Shadow DOM Distribution API
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/TNYIAu5E_M4/1i7LME9WCwAJ
  - Shadow DOM への slot の割当を命令的に行う?
  - <summary>/<detail> みたなことが、今の slot の仕組みだとできない
- Prototype: URL Protocol Handler Registration for PWAs
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/x4Ev_l9Oj2U/6bGPs7MVCwAJ
  - Web App Manifest に "protocol_handler" を追加
  - 他のアプリや Web アプリを呼べるように
- Prototype: Web Bluetooth getDevices()
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/UHRmDD20FWE/sCmwI9oxGgAJ
- Experiment: scheduler.postTask
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/31qZ-bMToM8/bLhpSdXhEgAJ
- Experiment: Querying HTTPSSVC
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/brZTXr6-2PU/g0g8wWwCAwAJ
  - HTTPS に関わる追加情報を入れた DNS record の HTTPSSVC を取得するように
  - ESNI, ALT-SVC, HSTS 情報などを入れる
- Deprecate GetPreferredTryMasters
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/2MYXEr2Q11o/3URSq3mQCQAJ
- Remove: @import rules in CSSStyleSheet.replace()
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/RKG8oxp22RY/fdFnG1rGCgAJ
- [Web-Facing Change PSA] Chrome will block insecure downloads from secure contexts
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/XDrJNswwlh0/eK6eoLm9AQAJ
- PSA: ExecutionContext is moving from Document to LocalDOMWindow
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/oT0UlFvqz0g/KfcepAq9AQAJ
- PSA: Moving SHA-1 and 3DES in TLS to a fallback
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/yaJcs4p9LNI/haZWzX-UBwAJ
- PSA: Periodic prioritization of rendering on the renderer's main thread in M81
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/NUMVehBQ9yc/L4c9OMyHBwAJ
- PSA: content-type attached to beacon with ArrayBufferView has changed
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/k_JNBV9OC1s/R4JmR8VjBwAJ
- Blink API OWNERS Requirements
  - https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/erJ4pMd5rv8/qCWFqIwDAwAJ
  - https://www.chromium.org/blink/blink-api-owners-requirements
  - API オーナーの満たすべき基準
- Your flag: unsafely-treat-insecure-origin-as-secure is expiring in M82
  - https://groups.google.com/a/chromium.org/forum/#!msg/security-dev/U2E2WGMhd14/W_bOimPQBQAJ
- Your flag: allow-insecure-localhost is expiring in M82
  - https://groups.google.com/a/chromium.org/forum/#!msg/security-dev/sSswK_C-AM8/-aKfcWPQBQAJ
- Your flag: enable-layout-ng is expiring in M82
  - https://groups.google.com/a/chromium.org/forum/#!msg/layout-dev/QDrBnD9KM9M/6GXd5PjhAQAJ
v8
- V8 release v8.1 · V8
  - https://v8.dev/blog/v8-release-81
  - Intl.DisplayNames
- Understanding the ECMAScript spec, part 1 · V8
  - https://v8.dev/blog/understanding-ecmascript-part-1
  - ECMAScript 仕様の読み方の解説
  - hasOwnProperty を例に読み進め方が書かれている
Other
- Chromium Platform Security Summit!
  - https://groups.google.com/a/chromium.org/forum/#!msg/security-dev/dPfHNzHWr5I/WmvdrwXeBAAJ
  - I/O の前くらいに開催予定
- Behind the Scenes: Deploying the AMP Runtime - The AMP Blog
  - https://blog.amp.dev/2020/02/05/behind-the-scenes-deploying-the-amp-runtime/
- Official Google Webmaster Central Blog [EN]: Google Search News for January 2020
  - https://webmasters.googleblog.com/2020/01/google-search-news-for-january-2020.htm
- Project Zero: A day^W^W Several months in the life of Project Zero - Part 1: The Chrome bug of suffering
  - https://googleprojectzero.blogspot.com/2020/02/several-months-in-life-of-part1.html
- Project Zero: A day^W^W Several months in the life of Project Zero - Part 2: The Chrome exploit of suffering
  - https://googleprojectzero.blogspot.com/2020/02/several-months-in-life-of-part2.html
- Project Zero: Escaping the Chrome Sandbox with RIDL
  - https://googleprojectzero.blogspot.com/2020/02/escaping-chrome-sandbox-with-ridl.html
- Project Zero: Mitigations are attack surface, too
  - https://googleprojectzero.blogspot.com/2020/02/mitigations-are-attack-surface-too.html
- Report on browser privacy
  - https://groups.google.com/a/chromium.org/forum/#!msg/net-dev/S00RPKuvImU/UXT4JSu1CAAJ
- QuicTransport Custom Certificate API - Invitation to comment
  - https://groups.google.com/a/chromium.org/forum/#!msg/net-dev/r3YDvZfjOqA/qQARnV4pBAAJ

Firefox 動向

Stable: 73.0.1
Updates
- Securing Firefox with WebAssembly - Mozilla Hacks - the Web developer blog
  - https://hacks.mozilla.org/2020/02/securing-firefox-with-webassembly/
  - WASM で作ったサンドボックス内でコードを実行しセキュアにしていく話し
  - 主に 3rd Party Libs から注力していく
- Firefox 73 is upon us - Mozilla Hacks - the Web developer blog
  - https://hacks.mozilla.org/2020/02/firefox-73-is-upon-us/
- Firefox 73 for developers - Mozilla | MDN
  - https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/73
- Firefox 73.0, See All New Features, Updates and Fixes
  - https://www.mozilla.org/en-US/firefox/73.0/releasenotes/
- These Weeks in Firefox: Issue 69 - Firefox Nightly News
  - https://blog.nightly.mozilla.org/2020/02/14/these-weeks-in-firefox-issue-69/
- Firefox continues push to bring DNS over HTTPS by default for US users - The Mozilla Blog
  - https://blog.mozilla.org/blog/2020/02/25/firefox-continues-push-to-bring-dns-over-https-by-default-for-us-users/
  - US で DoH がデフォルト有効に
- The Facts: Mozilla's DNS over HTTPs (DoH) - Open Policy & Advocacy
  - https://blog.mozilla.org/netpolicy/2020/02/25/the-facts-mozillas-dns-over-https-doh/
  - DoH についての FAQ
Intents
- Ship: a change to the initial value of image-orientation
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/PDYzBgRz8gk/6biEHyB_BwAJ
  - image-orientation の初期値を none から from-image にする
  - EXIF の持つ回転の情報がデフォルトで使われるように
- Ship: Autodiscovery of WebExtension search engines
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/mc-JJFw85HM/f-VJ4PncBgAJ
- Ship: SubmitEvent interface
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/ZyUPHkyLun8/XvYEqPncBgAJ
- Ship: form.requestSubmit()
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/NB0Ht1UGoSw/KiPRi_ncBgAJ
- Implement and ship: updated values for text-decoration properties
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/Rxnb4jD5gU8/J0Q7Rc7OAwAJ
- Prototype and ship: CSS comparison functions: min() / max() / clamp()
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/i6V9W5XJjpA/DoxHJkiqBwAJ
- Prototype and ship: lazy load images
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/3CH2pXxTWl4/xXc4_7QJBQAJ
- Prototype and ship: ARIA annotations
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/eh_O7G4H26Q/mFy5IambGQAJ
- Prototype and ship: running background color animations on the compositor thread
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/rHmM7kQaH7Q/jdrJS7sgCQAJ
- Prototype: :focus-visible pseudo-class.
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/QzmcYfffVQ4/gk8iCALCCAAJ
- Prototype: Document as explicit root of an intersection observer
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/64nDLTAZGzY/CQMV7WqtCAAJ
- Implement: CSS conic-gradient
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/CSbRi8-MrMM/wtFU1ZNcBwAJ
- Deploy: ThreadSanitizer
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/C76EeB0KutU/5SWRsczOAwAJ
- Unship: Recursive call of Document.execCommand() (Only Nightly and early Beta for now)
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/HTKNoyWuYtc/RRa-QRwFBwAJ
- Unship: system SQLite support on Linux (--enable-system-sqlite)
  - https://groups.google.com/forum/#!msg/mozilla.dev.platform/JqG26XiPl94/fuSiK7UJBQAJ
Other
- It's the Boot for TLS 1.0 and TLS 1.1 - Mozilla Hacks - the Web developer blog
  - https://hacks.mozilla.org/2020/02/its-the-boot-for-tls-1-0-and-tls-1-1/
- (とりこぼし) backgroundsync と periodicbacgkroundsync が harmful に
  - https://github.com/mozilla/standards-positions/pull/232/files
- Images are now rotated by default according to Exif data | Firefox Site Compatibility
  - https://www.fxsitecompat.dev/en-CA/docs/2020/images-are-now-rotated-by-default-according-to-exif-data/
  - 画像の表示に Exif の rotate 情報をみるように
- Resolve data breaches with Firefox Monitor | The Firefox Frontier
  - https://blog.mozilla.org/firefox/resolve-data-breaches/
- Intent to implement: Cookie SameSite=lax by default and SameSite=none only if secure
  - https://groups.google.com/d/msg/mozilla.dev.platform/nx2uP0CzA9k/REUNAW2YGQAJ
  - Nightly で SameSite=Lax がデフォルト有効に

Safari 動向

Stable: 13.0.5
Updates
- Release Notes for Safari Technology Preview 💯
  - https://webkit.org/blog/10024/release-notes-for-safari-technology-preview-100/
  - Added support for the options parameter to getAnimations() (r255149)
  - Fixed User Verification (UV) option present on a CTAP2 authenticatorMakeCredential while the authenticator has not advertised support for it (r254710)
  - Added support for allow="fullscreen" feature policy (r255162)
  - Added finite timeout when synchronously terminating a service worker (r254706)
  - Fixed EXIF orientation ignored for some CSS images (r254841)
  - Fixed elements no longer stay fixed with elastic overscroll (r255037)
  - Added support for MediaRecorder.requestData (r255085)
  - Implemented sub-source texImage2D and texSubImage2D (r255316)
- Release Notes for Safari Technology Preview 101
  - https://webkit.org/blog/10031/release-notes-for-safari-technology-preview-101/
  - Corrected TextTrack sorting with invalid BCP47 language (r255997)
  - Redacted billing contact during payment method selection (r256071)
  - Added support for BigInt literal as PropertyName (r256541)
  - Changed authenticatorGetAssertion to be sent without pinAuth if user verification is discouraged (r256001)
  - Aligned getDisplayMedia() with standards specifications (r256034)
  - Fixed CSS rules with the same selector from several large stylesheets getting applied in the wrong order (r255671)
  - Fixed pages that trigger a redirect sometimes getting left blank (r256452)
  - Disallowed setting base URL to a data or JavaScript URL (r256191)
  - Fixed highlight text decorations to work with all decoration types and colors (r256451)
  - Implemented OffscreenCanvas.copiedImage (r256505)
  - Updated to remember if legacy TLS was used in the back-forward cache (r256073)
- Explainer: IsLoggedIn (on GitHub)
  - https://lists.w3.org/Archives/Public/public-webappsec/2020Feb/0008.html
  - https://github.com/WebKit/explainers/tree/master/IsLoggedIn
  - IsLoggedIn の Explainer が更新されたっぽい
- Changeset 256501 - WebKit
  - https://trac.webkit.org/changeset/256501/webkit
  - WebKit の Nightly に WebP が実装
Other

Edge 動向

Stable: 80
Updates
- Announcing Windows 10 Insider Preview Build 19559 | Windows Experience Blog
  - https://blogs.windows.com/windowsexperience/2020/02/05/announcing-windows-10-insider-preview-build-19559/
- Bringing the Microsoft Edge DevTools to more languages
  - https://blogs.windows.com/msedgedev/2020/02/04/localizing-edge-devtools/
- implifying Microsoft Edge configuration profiles for Jamf Pro
  - https://blogs.windows.com/msedgedev/2020/02/20/edge-profiles-jamf-applications-custom-settings/
- Protecting users from potentially unwanted applications in Microsoft Edge - Microsoft Edge Blog
  - https://blogs.windows.com/msedgedev/2020/02/27/protecting-users-potentially-unwanted-apps/
Chakra
- Release ChakraCore v1.11.16 · microsoft/ChakraCore
  - https://github.com/microsoft/ChakraCore/releases/tag/v1.11.16
Other
- Microsoft's Three Browsers | text/plain
  - https://textslashplain.com/2020/02/03/microsofts-three-browsers/
- App-to-Web Communication: Launching Web Apps | text/plain
  - https://textslashplain.com/2020/02/05/app-to-web-communication-launching-web-apps/
- Demystifying Browsers | text/plain
  - https://textslashplain.com/2020/02/09/demystifying-browsers/
- Browser Password Managers: Threat Models | text/plain
  - https://textslashplain.com/2020/02/11/browser-password-managers-threat-models/

WHATWG/W3C 動向

Recommendation
- Trace Context is a W3C Recommendation
  - https://www.w3.org/blog/news/archives/8298
- Data Catalog Vocabulary (DCAT) version 2 is a W3C Recommendation
  - https://www.w3.org/blog/news/archives/8287
Proposed Recommendation
Candidate Recommendation
Working Draft
First Public Working Draft
- First Public Working Draft: Requirements for Personalization Semantics
  - https://www.w3.org/blog/news/archives/8290
- First Public Working Drafts: Media Capabilities, Picture-in-Picture, Media Session Standard
  - https://www.w3.org/blog/news/archives/8285
- First Public Working Drafts: Resize Observer; CSS Scroll Anchoring Module Level 1
  - https://www.w3.org/blog/news/archives/8311
- First Public Working Draft: XR Accessibility User Requirements
  - https://www.w3.org/blog/news/archives/8320
- First Public Working Draft: WCAG 2.2
  - https://www.w3.org/blog/news/archives/8334
Chartering
- CSS Print Community Group created
  - https://lists.w3.org/Archives/Public/public-new-work/2020Feb/0005.html
- CSS4 Community Group created
  - https://lists.w3.org/Archives/Public/public-new-work/2020Feb/0011.html
- XSLT Extensions Community Group Proposed
  - https://lists.w3.org/Archives/Public/public-new-work/2020Feb/0010.html
- Synthetic Media Community Group Proposed
  - https://lists.w3.org/Archives/Public/public-new-work/2020Feb/0009.html
Other
- W3C Workshop Report: Inclusive Design for Immersive Web Standards
  - https://www.w3.org/blog/news/archives/8302
- For Wide Review: Personalization Semantics Content Module 1.0
  - https://www.w3.org/blog/news/archives/8294

TC39 動向

Meeting
- 2020-02
  - https://github.com/tc39/agendas
  - https://github.com/tc39/notes
  - TC39-news/tc39-02-2020.md at master · codehag/TC39-news
    - https://github.com/codehag/TC39-news/blob/master/meetings/tc39-02-2020.md
    - https://groups.google.com/forum/#!topic/mozilla.dev.platform/I_SBpSIh8CM
    - Mozilla の Yulia Startsev による Meeeting のサマリ
Proposals Diff
- https://github.com/tc39/proposals/compare/master@{2020-02-01}...master@{2020-03-01}
- https://tc39.github.io/beta/
- 0->1
  - arraybuffer-view-stride
    - https://github.com/surma/arraybufferview-stride-proposal
  - Cryptographically Secure Random Number Generation
    - https://github.com/rbuckton/proposal-csprng
  - Async initialization
    - https://github.com/tc39/proposals/commit/78ae85b9893780e0d8e41ec2d013e24d644670b6
  - Legacy reflection features for functions
    - https://github.com/tc39/proposals/commit/8fc280e29655af5169840ebe7b32fbe12d6755ad
  - Preserve Host Virtualizability
    - https://github.com/Agoric/proposal-preserve-virtualizability
  - Decimal
    - https://github.com/littledan/proposal-decimal
  - Intl.DurationFormat
    - https://github.com/younies/proposal-intl-duration-format
- 1->2
  - logical-assignment
    - https://github.com/tc39/proposal-logical-assignment
- 2->3
- 3->4
  - Intl.locale
    - https://github.com/tc39/proposal-intl-locale
  - Intl.NumberFormat Unified API
    - https://github.com/tc39/proposal-unified-intl-numberformat
New Proposals
- Intl.DurationFormat
  - https://github.com/younies/proposal-intl-duration-format
- decimal
  - https://github.com/littledan/proposal-decimal
- Ergonomic brand checks for Private Fields(private-fields-in-in)
  - https://github.com/ljharb/proposal-private-fields-in-in
  - private filed に対応しているかどうかを try-catch なしで判別する
Other

IETF 動向

IETF
RFC
IETF Last Call
WG Last Call
Call for Adoption
I-D Action
Draft
- Lightweight Authorization for Authenticated Key Exchange.
  - https://tools.ietf.org/html/draft-selander-ace-ake-authz-00
- Roughtime
  - https://tools.ietf.org/html/draft-ietf-ntp-roughtime-00
- JSContact: Converting from and to vCard
  - https://tools.ietf.org/html/draft-loffredo-jmap-jscontact-vcard-00
- JSContact: A JSON representation of contact data
  - https://tools.ietf.org/html/draft-ietf-jmap-jscontact-00
- SDP Mapping into HTTP structured headers
  - https://tools.ietf.org/html/draft-gruessing-sdp-http-00
- JSON Responses for the Registration Data Access Protocol (RDAP)
  - https://tools.ietf.org/html/draft-hollenbeck-regext-rfc7483bis-00
- Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)
  - https://tools.ietf.org/html/draft-sheffer-uta-bcp195bis-00
- Quic Timestamps For Measuring One-Way Delays
  - https://tools.ietf.org/html/draft-huitema-quic-ts-00
- Pairing-Friendly Curves
  - https://tools.ietf.org/html/draft-irtf-cfrg-pairing-friendly-curves-01
- Real-time text media handling in multi-party conferences
  - https://tools.ietf.org/html/draft-hellstrom-mmusic-multi-party-rtt-01
- rLEDBAT: receiver-driven Low Extra Delay Background Transport for TCP
  - https://tools.ietf.org/html/draft-irtf-iccrg-rledbat-00
- An Unreliable Datagram Extension to QUIC
  - https://tools.ietf.org/html/draft-ietf-quic-datagram-00
- Network-Based Website Fingerprinting
  - https://tools.ietf.org/html/draft-irtf-pearg-website-fingerprinting-00
- Compatible Version Negotiation for QUIC
  - https://tools.ietf.org/html/draft-ietf-quic-version-negotiation-00
Other

セキュリティ動向

暗号資産「無断採掘」、二審は有罪閲覧者 PC 利用-東京高裁:時事ドットコム
- https://www.jiji.com/jc/article?k=2020020700330&g=soc
Three ways TLS 1.3 protects origin names
- https://www.fastly.com/blog/3-ways-tls-1-3-protects-origin-names
Bypassing AppProtocol Prompts | text/plain
- https://textslashplain.com/2020/02/20/bypassing-appprotocol-prompts/
DNS over HTTPS Providers Chromium
- https://groups.google.com/a/chromium.org/forum/#!msg/net-dev/Fz3VfevdFmg/o1GhsWWnAwAJ
- NextDNS が DoH 対応し、 Chrome の対応プロバイダリストへの登録を依頼
- なお、 CNAME Cloaking 回避もできるらしい
- https://nextdns.io

周辺動向

What do you want from a Web Browser Developer Relations team? - Modern Web Development: Tales of a Developer Advocate by Paul Kinlan
- https://paul.kinlan.me/what-do-you-want-from-a-web-browser-developer-relations-team/
HTTP/3 for everyone | daniel.haxx.se
- https://daniel.haxx.se/blog/2020/02/02/http-3-for-everyone/
How 1500 bytes became the MTU of the internet
- https://blog.benjojo.co.uk/post/why-is-ethernet-mtu-1500
- MTU が 1500 になった理由
Introducing Acrobat on the Web, Powered by WebAssembly
- https://medium.com/adobetech/acrobat-on-the-web-powered-by-webassembly-782385e4947e
- Adobe が Web 版の Acrobat を発表
- Mobile PDF Library を wasm にコンパイルして利用している
- https://documentcloud.adobe.com/view-sdk-demo/index.html
WebAssembly Summit 2020 Notes
- https://gist.github.com/bushidocodes/19663642453c918d7868bf1ac5a563a4
WebAssembly Summit まとめ
- https://note.com/chikoski/n/n6f8b283767fc
- https://note.com/chikoski/n/n27b3e4c0ebd8

イベント

3 月
- 27: IETF 107 Vancouver
4 月
5 月
- ??: Chrome Security Summit
- 12-14: Google I/O
6 月
- 19: SecWeb