Sync 歷史版本列表
更新時間：2019-11-06
更新細節：
What's new in this version:
Changes:
cli:
- Added a new flag (--trace-uncaught) that makes Node.js print the stack trace at the time of throwing uncaught exceptions, rather than at the creation of the Error object, if there is any. This is disabled by default because it affects GC behavior
crypto:
- Added Hash.prototype.copy() method. It returns a new Hash object with its internal state cloned from the original one
dgram:
- Added source-specific multicast support. This adds methods to Datagram sockets to support RFC 4607 for IPv4 and IPv6
fs:
- Added a bufferSize option to fs.opendir(). It allows to control the number of entries that are buffered internally when reading from the directory
meta:
- Added Chengzhong Wu to collaborators
Commits:
- async_hooks: only emit after for AsyncResource if stack not empty
- buffer: improve performance caused by primordia
- build: fix detection of Visual Studio 2017
- build: add workaround for WSL
- build: allow Python 3.8
- build: find Python syntax errors in dependencies
- build: fix pkg-config search for libnghttp2
- build: vcbuild uses default Python, not Py2
- build: prefer python 3 over 2 for configure
- build: python3 support for configure
- cli: whitelist new V8 flag in NODE_OPTIONS
- (SEMVER-MINOR) cli: add --trace-uncaught flag
- crypto: guard with OPENSSL_NO_GOST
- (SEMVER-MINOR) crypto: add Hash.prototype.copy() method
- deps: V8: cherry-pick a7dffcd767be
- deps: V8: cherry-pick e5dbc95
- deps: update npm to 6.12.1
- deps: V8: backport 777fa98
- deps: V8: cherry-pick c721203
- deps: V8: cherry-pick ed40ab1
- (SEMVER-MINOR) dgram: add source-specific multicast support
- doc: add missing hash for header link
- doc: linkify .setupMaster() in cluster doc
- doc: explain http2 aborted event callback
- doc: linkify .fork() in cluster documentation
- doc: update AUTHORS list
- doc: improve doc Http2Session:Timeout
- doc: move inactive Collaborators to emeriti
- doc: add options description for send Apis
- doc: fix an error in resolution algorithm steps
- doc: fix numbering in require algorithm
- doc: remove incorrect and outdated example
- doc: adjust code sample for stream.finished
- doc: claim NODE_MODULE_VERSION=80 for Electron 9
- doc: remove "it is important to" phrasing
- doc: revise os.md
- doc: delete "a number of" things in the docs
- doc: remove dashes
- doc: add legendecas to collaborators
- doc: make YAML matter consistent in crypto.md
- doc,meta: prefer aliases and stubs over Runtime Deprecations
- doc,n-api: sort bottom-of-the-page references
- (SEMVER-MINOR) fs: add bufferSize option to fs.opendir()
- http: support readable hwm in IncomingMessage
- inspector: turn platform tasks that outlive Agent into no-ops
- meta: use contact_links instead of issue templates
- module: resolve self-reference
- n-api,doc: add info about building n-api addons
- src: isolate->Dispose() order consistency
- (SEMVER-MINOR) src: expose granular SetIsolateUpForNode
- src: change env.h includes for forward declarations
- src: split up InitializeContext
- src: fix crash with SyntheticModule#setExport
- src: allow inspector without v8 platform
- stream: extract Readable.from in its own file
- test: use arrow functions for callbacks
- test: verify npm compatibility with releases
- tools: fix Python 3 deprecation warning in test.py
- tools: fix Python 3 syntax error in mac_tool.py
- tools: use print() function in buildbot_run.py
- tools: undefined name opts -> args in gyptest.py
- tools: git rm -r tools/v8_gypfiles/broken
- tools: update ESLint to 6.6.0
- tools: doc: improve async workflow of generate.js
更新時間：2019-11-06
更新細節：
What's new in this version:
Sync 2.0.9
New:
- Windows minimum version 7 (we continue to support Windows XP via the Windows legacy installer)
Fixed:
- Issue that would cause older versions of files to become current in rare cases
- Various crashes that would otherwise require the app to be re-installed
Sync 2.0.7
New:
- Windows minimum version 7 (we continue to support Windows XP via the Windows legacy installer)
Fixed:
- Issue that would cause older versions of files to become current in rare cases
- Various crashes that would otherwise require the app to be re-installed
Sync 2.0.5
New:
- Search your files in the Sync folder and Vault
- Easy access to recently added or updated files
- High DPI support for Windows display mode scaling
Improved:
- Two factor authentication (2FA) integration on device attach improved
- Windows installer now standalone, does not require external download
- Light mode support on Windows 10
Fixed:
- Issues when installing Sync on a secondary computer user
- Various performance improvements and bug fixes
Sync 2.0.2
New:
- Search your files in the Sync folder and Vault
- Easy access to recently added or updated files
- High DPI support for Windows display mode scaling
- Mac app is officially notarized by Apple
Improved:
- Two factor authentication (2FA) integration on device attach improved
- Windows installer now standalone, does not require external download
- Dark mode support on macOS
Fixed:
- Issues when installing Sync on a secondary computer user
- Various performance improvements and bug fixes
Sync 1.3.11
Improved:
- Windows installer now standalone
- Optimized macOS app to use less CPU when scanning deep folder trees
Fixed:
- Delay when attaching new device and 2FA enabled
- Issues related to Sync paused on startup (Windows 10)
Sync 1.3.10
- Change log not available for this version
Sync 1.3.9
- Change log not available for this version
Sync 1.3.6
- Change log not available for this version
Sync 1.3.1
New:
- Network setting to allow Sync to work with Kaspersky (and similar AV applications that monitor SSL)
Improved:
- Network speed now reports in Mbit/sec
- Creating links more robust, less prone to failure
- Open Sync folder when starting Sync from Windows Start Menu
- Symbolic link recursion no longer followed
- Two-factor authentication notification when provisioning device
Fixed:
- Allow CMD-V password paste on Mac
- Possible memory leaks or crashes related to hundreds of thousands of files
- Crashing due to thumbnail creation
- Various GUI crashes
- Better handle constantly changing files
- Misc. share folder errors
Sync 1.3.0
New:
- Network setting to allow Sync to work with Kaspersky (and similar AV applications that monitor SSL)
Improved:
- Network speed now reports in Mbit/sec
- Creating links more robust, less prone to failure
- Open Sync folder when starting Sync from Windows Start Menu
- Symbolic link recursion no longer followed
- Two-factor authentication notification when provisioning device
Fixed:
- Allow CMD-V password paste on Mac
- Possible memory leaks or crashes related to hundreds of thousands of files
- Crashing due to thumbnail creation
- Various GUI crashes
- Better handle constantly changing files
- Misc. share folder errors
Sync 1.1.20
- Change log not available for this version
Sync 1.1.18
- Change log not available for this version
Sync 1.1.15
- Change log not available for this version
Sync 1.1.12
- Change log not available for this version
Sync 1.1.9
Fixed:
- Events sometimes being attributed to the wrong device on shares
- Less likely to create conflict files on error
- Network alarm less sensitive
- Automatic recovery from local database locking, errors or corruption
- The mighty tilde (~) character supported in file names again
- Various issues related to ._ files on external OS X volumes
- Delayed file issues if third-party app reverts a file modification time on a file
Improved:
- Utilizes less CPU with large file sets (millions of files)
- Less background scanning
- Reduced the likelihood of folders coming back to life when deleting or renaming folders on a share
更新時間：2019-11-06
更新細節：
更新時間：2019-11-05
更新細節：
What's new in this version:
- Show user thumbnail in chat header
- Cache older messages per convo
- Better UX when loading chat
- Make media messages look less overwhelming
更新時間：2019-10-23
更新細節：
What's new in this version:
Changes:
- deps: fixed a bug in npm 6.12.0 where warnings are emitted on Node.js 13.x
- esm: changed file extension resolution order of --es-module-specifier-resolution=node to match that of the CommonJS loader
更新時間：2019-10-22
更新細節：
What's new in this version:
- This release marks the transition of Node.js 12.x into Long Term Support (LTS) with the codename 'Erbium'. The 12.x release line now moves into "Active LTS" and will remain so until October 2020. After that time, it will move into "Maintenance" until end of life in April 2022
Notable changes:
- Npm was updated to 6.12.0. It now includes a version of `node-gyp` that supports Python 3 for building native modules
更新時間：2019-10-13
更新細節：
What's new in this version:
Notable changes:
build:
- Add `--force-context-aware` flag to prevent usage of native node addons that aren't context aware
deprecations:
- Add documentation-only deprecation for `process._tickCallback()`
esm:
- Using JSON modules is experimental again
fs:
- Introduce `opendir()` and `fs.Dir` to iterate through directories
process:
- Add source-map support to stack traces by using `--source-map-support` #29564
tls:
- Honor `pauseOnConnect` option
- Add option for private keys for OpenSSL engines
更新時間：2019-10-08
更新細節：
What's new in this version:
Sync 2.0.7
New:
- Windows minimum version 7
(we continue to support Windows XP via the Windows legacy installer)
Fixed:
- Issue that would cause older versions of files to become current in rare cases
- Various crashes that would otherwise require the app to be re-installed
Sync 2.0.5
New:
- Search your files in the Sync folder and Vault
- Easy access to recently added or updated files
- High DPI support for Windows display mode scaling
Improved:
- Two factor authentication (2FA) integration on device attach improved
- Windows installer now standalone, does not require external download
- Light mode support on Windows 10
Fixed:
- Issues when installing Sync on a secondary computer user
- Various performance improvements and bug fixes
Sync 2.0.2
New:
- Search your files in the Sync folder and Vault
- Easy access to recently added or updated files
- High DPI support for Windows display mode scaling
- Mac app is officially notarized by Apple
Improved:
- Two factor authentication (2FA) integration on device attach improved
- Windows installer now standalone, does not require external download
- Dark mode support on macOS
Fixed:
- Issues when installing Sync on a secondary computer user
- Various performance improvements and bug fixes
Sync 1.3.11
Improved:
- Windows installer now standalone
- Optimized macOS app to use less CPU when scanning deep folder trees
Fixed:
- Delay when attaching new device and 2FA enabled
- Issues related to Sync paused on startup (Windows 10)
Sync 1.3.10
- Change log not available for this version
Sync 1.3.9
- Change log not available for this version
Sync 1.3.6
- Change log not available for this version
Sync 1.3.1
New:
- Network setting to allow Sync to work with Kaspersky (and similar AV applications that monitor SSL)
Improved:
- Network speed now reports in Mbit/sec
- Creating links more robust, less prone to failure
- Open Sync folder when starting Sync from Windows Start Menu
- Symbolic link recursion no longer followed
- Two-factor authentication notification when provisioning device
Fixed:
- Allow CMD-V password paste on Mac
- Possible memory leaks or crashes related to hundreds of thousands of files
- Crashing due to thumbnail creation
- Various GUI crashes
- Better handle constantly changing files
- Misc. share folder errors
Sync 1.3.0
New:
- Network setting to allow Sync to work with Kaspersky (and similar AV applications that monitor SSL)
Improved:
- Network speed now reports in Mbit/sec
- Creating links more robust, less prone to failure
- Open Sync folder when starting Sync from Windows Start Menu
- Symbolic link recursion no longer followed
- Two-factor authentication notification when provisioning device
Fixed:
- Allow CMD-V password paste on Mac
- Possible memory leaks or crashes related to hundreds of thousands of files
- Crashing due to thumbnail creation
- Various GUI crashes
- Better handle constantly changing files
- Misc. share folder errors
Sync 1.1.20
- Change log not available for this version
Sync 1.1.18
- Change log not available for this version
Sync 1.1.15
- Change log not available for this version
Sync 1.1.12
- Change log not available for this version
Sync 1.1.9
Fixed:
- Events sometimes being attributed to the wrong device on shares
- Less likely to create conflict files on error
- Network alarm less sensitive
- Automatic recovery from local database locking, errors or corruption
- The mighty tilde (~) character supported in file names again
- Various issues related to ._ files on external OS X volumes
- Delayed file issues if third-party app reverts a file modification time on a file
Improved:
- Utilizes less CPU with large file sets (millions of files)
- Less background scanning
- Reduced the likelihood of folders coming back to life when deleting or renaming folders on a share
更新時間：2019-10-02
更新細節：
What's new in this version:
Notable changes:
Build:
- This release fixes a regression that prevented from building Node.js using the official source tarball
Deps:
- Updated small-icu data to support "unit" style in the Intl.NumberFormat API
Commits:
- build: include deps/v8/test/torque in source tarball
- build,win: goto lint only after defining node_exe
- crypto: use byteLength in timingSafeEqual
- deps: enable unit data in small-icu
- doc: sync security policy with nodejs.org
- doc: fix output in inspector HeapProfile example
- doc: add KeyObject to type for crypto.createDecipheriv() argument
- doc: clarify description of readable.push() method
- doc: clarify stream errors while reading and writing
- doc: specify display=fallback for Google Fonts
- doc: fix some recent nits
- doc: fix 404 links
- doc: remove align from tables
- doc: document that iv may be null when using createCipheriv()
- doc: update AUTHORS list
- doc: clarify pipeline stream cleanup
- doc: clarify fs.symlink() usage
- doc: fix type of atime/mtime
- doc,http: indicate callback is optional for message.setTimeout()
- http2: optimize the altsvc Max bytes limit, define and use constants
- module: pass full URL to loader for top-level load
- module: move cjs type check behind flag
- src: rename --loader to --experimental-loader
- src: fix asan build for gcc/clang
- src: fix compiler warning in inspector_profiler.cc
- src: disconnect inspector before exiting out of fatal exception
- src: try showing stack traces when process._fatalException is not set
- test: fix flaky test-cluster-net-listen-ipv6only-none
- tls: simplify setSecureContext() option parsing
- tools: make mailmap processing for author list case-insensitive
- worker: fix process._fatalException return type
- worker: keep allocators for transferred SAB instances alive longer
更新時間：2019-09-26
更新細節：
What's new in this version:
crypto:
- Add oaepLabel option
deps:
- Update V8 to 7.7.299.11 #28918
- More efficient memory handling
- Stack trace serialization got faster
- The Intl.NumberFormat API gained new functionality
- For more information: https://v8.dev/blog/v8-release-77
events:
- Add support for EventTarget in once
fs:
- Expose memory file mapping flag UV_FS_O_FILEMAP
inspector:
- New API - Session.connectToMainThread
process:
- Initial SourceMap support via env.NODE_V8_COVERAGE
stream:
- Make _write() optional when _writev() is implemented
tls:
- Add option to override signature algorithms
util:
- Add encodeInto to TextEncoder
worker:
- The worker_thread module is now stable
Commits:
- benchmark: improve process.env benchmarks (Anna Henningsen)
- bootstrap: add exception handling for profiler bootstrap (Shobhit Chittora)
- bootstrap: provide usable error on missing internal module (Jeremiah Senkpiel)
- build: do not indent assignments in Makefile (Joyee Cheung)
- build: allow clang 10+ in configure.py (Kamil Rytarowski)
- build: re-run configure on node_version.h change (Anna Henningsen)
- build: improve make coverage (Anna Henningsen)
- build: add comment to .travis.yml on how to test Py3 (cclauss)
- build: update minimum AIX OS level (Michael Dawson)
- build: remove experimental Python 3 tests (Christian Clauss)
- (SEMVER-MINOR) build: reset embedder string to "-node.0" (Michaël Zasso)
- build,win: fix Python detection on localized OS (João Reis)
- console: skip/strip %c formatting (Gus Caplan)
- console,util: fix missing recursion end while inspecting prototypes (Ruben Bridgewater)
- crypto: use BoringSSL-compatible flag getter (Shelley Vohr)
- (SEMVER-MINOR) crypto: fix OpenSSL return code handling (Tobias Nießen)
- (SEMVER-MINOR) crypto: add oaepLabel option (Tobias Nießen)
- deps: patch V8 to 7.7.299.11 (Michaël Zasso)
- deps: V8: cherry-pick deac757 (Benjamin Coe)
- deps: patch V8 to 7.7.299.10 (Thomas)
- deps: V8: cherry-pick 35c6d4d (Sam Roberts)
- deps: update npm to 6.11.3 (claudiahdz)
- deps: upgrade to libuv 1.32.0 (cjihrig)
- deps: patch V8 to 7.7.299.8 (Michaël Zasso)
- (SEMVER-MINOR) deps: patch V8 to be API/ABI compatible with 7.4 (from 7.7) (Michaël Zasso)
- deps: patch V8 to be API/ABI compatible with 7.4 (from 7.6) (Michaël Zasso)
- (SEMVER-MINOR) deps: patch V8 to be API/ABI compatible with 7.4 (from 7.5) (Michaël Zasso)
- deps: V8: cherry-pick e3d7f8a (cclauss)
- (SEMVER-MINOR) deps: V8: fix linking issue for MSVS (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: fix BUILDING_V8_SHARED issues (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: add workaround for MSVC optimizer bug (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: use ATOMIC_VAR_INIT instead of std::atomic_init (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: forward declaration of Rtl*FunctionTable (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: patch register-arm64.h (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: update postmortem metadata generation script (cjihrig)
- (SEMVER-MINOR) deps: V8: silence irrelevant warning (Michaël Zasso)
- (SEMVER-MINOR) deps: V8: un-cherry-pick bd019bd (Refael Ackermann)
- (SEMVER-MINOR) deps: V8: fix filename manipulation for Windows (Refael Ackermann)
- (SEMVER-MINOR) deps: update V8 to 7.7.299.4 (Michaël Zasso)
- doc: update N-API version matrix (Gabriel Schulhof)
- doc: add code example to process.throwDeprecation property (Juan José Arboleda)
- doc: fix some signatures of .end() methods (Vse Mozhet Byt)
- doc: remove the suffix number of the anchor link (Maledong)
- doc: explain stream.finished cleanup (Robert Nagy)
- doc: fix require call for spawn() in code example (Marian Rusnak)
- doc: make minor improvements to stream.md (Robert Nagy)
- doc: fix nits in net.md (Vse Mozhet Byt)
- doc: correct trivial misspelling in AUTHORS (gcr)
- doc: update list style in misc README docs (Rich Trott)
- doc: add missing complete property to http2 docs (Javier Ledezma)
- doc: add leap second behavior notes for napi methods (Levhita)
- doc: explain esm options for package authors (Geoffrey Booth)
- doc: update experimental loader hooks example code (Denis Zavershinskiy)
- doc: use consistent unordered list style (Nick Schonning)
- doc: add Bethany to TSC (Michael Dawson)
- doc: add Tobias to the TSC (Michael Dawson)
- doc: mention unit for process.hrtime.bigint() (Anna Henningsen)
- doc: add documentation for stream readableFlowing (Chetan Karande)
- doc: indent child list items for remark-lint (Nick Schonning)
- doc: space around lists (Nick Schonning)
- doc: exitedAfterDisconnect value can be false (Nimit Aggarwal)
- doc: remove wrong escapes (XhmikosR)
- doc: prepare markdown files for more stringent blank-line linting (Rich Trott)
- doc: simplify wording in n-api doc (Michael Dawson)
- doc: update release guide with notes for major releases (James M Snell)
- doc: indent ordered list child content (Nick Schonning)
- doc: fix unsafe writable stream code example (Chetan Karande)
- doc: async_hooks.createHook promiseResolve option (Ben Noordhuis)
- doc: change urls directly from 'http' to 'https' (Maledong)
- doc: use consistent indenting for unordered list items (Nick Schonning)
- doc: start unorded lists at start of line (Nick Schonning)
- doc: change the 'txt' to 'console' for a command (Maledong)
- esm: make dynamic import work in the REPL (Bradley Farias)
- events: improve performance of EventEmitter.emit (Matteo Collina)
- (SEMVER-MINOR) events: add support for EventTarget in once (Jenia)
- fs: remove unnecessary argument check (Robert Nagy)
- gyp: make StringIO work in ninja.py (Christian Clauss)
- http: refactor responseKeepAlive() (Robert Nagy)
- http2: do not crash on stream listener removal w/ destroyed session (Anna Henningsen)
- http2: send out pending data earlier (Anna Henningsen)
- http2: do not start reading after write if new write is on wire (Anna Henningsen)
- (SEMVER-MINOR) inspector: new API - Session.connectToMainThread (Eugene Ostroukhov)
- lib: remove the use of util.isFunction (himself65)
- (SEMVER-MINOR) lib,test: fix error message check after V8 update (Michaël Zasso)
- module: error for CJS .js load within type: module (Guy Bedford)
- module: reintroduce package exports dot main (Guy Bedford)
- n-api: delete callback bundle via reference (Gabriel Schulhof)
- n-api: mark version 5 N-APIs as stable (Gabriel Schulhof)
- perf_hooks: remove non-existent entries from inspect (Kirill Fomichev)
- perf_hooks: ignore duplicated entries in observer (Kirill Fomichev)
- perf_hooks: remove GC callbacks on zero observers count (Kirill Fomichev)
- perf_hooks: import http2 only once (Kirill Fomichev)
- policy: minor perf opts and cleanup (Bradley Farias)
- (SEMVER-MINOR) process: initial SourceMap support via NODE_V8_COVERAGE (Benjamin Coe)
- process: use public readableFlowing property (Chetan Karande)
- repl: convert var to let and const (Lucas Holmquist)
- repl: fix bug in fs module autocompletion (zhangyongsheng)
- repl: add autocomplete support for fs.promises (antsmartian)
- repl: add missing variable declaration (Lucas Holmquist)
- src: perform check before running in runMicrotasks() (Jeremy Apthorp)
- src: discard remaining foreground tasks on platform shutdown (Anna Henningsen)
- src: fix closing weak HandleWraps on GC (Anna Henningsen)
- src: use libuv to get env vars (Anna Henningsen)
- src: re-delete Atomics.wake (Gus Caplan)
- src: print exceptions from PromiseRejectCallback (Anna Henningsen)
- src: modified RealEnvStore methods to use libuv functions (Devendra Satram)
- src: make ELDHistogram a HandleWrap (Anna Henningsen)
- src: check microtasks before running them (Shelley Vohr)
- src: fix ValidateDSAParameters when fips is enabled (Daniel Bevenius)
- (SEMVER-MINOR) src: update v8abbr.h for V8 7.7 (cjihrig)
- (SEMVER-MINOR) src,lib: expose memory file mapping flag (João Reis)
- stream: add test for multiple .push(null) (Chetan Karande)
- stream: cleanup use of internal ended state (Chetan Karande)
- (SEMVER-MINOR) stream: make _write() optional when _writev() is implemented (Robert Nagy)
- stream: apply special logic in removeListener for readable.off() (Robert Nagy)
- stream: do not call _read() after destroy() (Robert Nagy)
- stream: optimize creation (Robert Nagy)
- stream: simplify isUint8Array helper (Anna Henningsen)
- test: fix race condition in test-worker-process-cwd.js (Ruben Bridgewater)
- test: fix flaky test-inspector-connect-main-thread (Anna Henningsen)
- test: unmark test-worker-prof as flaky (Anna Henningsen)
- test: improve test-worker-message-port-message-before-close (Anna Henningsen)
- test: disable core dumps before running crash test (Ben Noordhuis)
- test: permit test-signalwrap to work without test runner (Rich Trott)
- test: remove flaky status for test-statwatcher (Rich Trott)
- (SEMVER-MINOR) test: update postmortem metadata test for V8 7.7 (cjihrig)
- timers: set _destroyed even if there are no destroy-hooks (Jeremiah Senkpiel)
- (SEMVER-MINOR) tls: add option to override signature algorithms (Anton Gerasimov)
- tools: cleanup getnodeversion.py for readability (Christian Clauss)
- tools: update ESLint to 6.4.0 (zhangyongsheng)
- tools: fix iculslocs to support ICU 65.1 (Steven R. Loomis)
- tools: python3 compat for inspector code generator (Ben Noordhuis)
- tools: delete v8_external_snapshot.gypi (Ujjwal Sharma)
- tools: fix GYP ninja generator for Python 3 (Michaël Zasso)
- (SEMVER-MINOR) tools: sync gypfiles with V8 7.7 (Michaël Zasso)
- tty: add color support for mosh (Aditya)
- util: include reference anchor for circular structures (Ruben Bridgewater)
- (SEMVER-MINOR) util: add encodeInto to TextEncoder (Anna Henningsen)
- (SEMVER-MINOR) worker: mark as stable (Anna Henningsen)
- worker: make terminate() resolve for unref’ed Workers (Anna Henningsen)
- worker: prevent event loop starvation through MessagePorts (Anna Henningsen)
- worker: make transfer list behave like web MessagePort (Anna Henningsen)