lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
avivkeller wants to merge 1 commit into
base:main
Choose a base branch
from
+29 −24
Open

lib: enable web worker api by default #65323

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
24 changes: 15 additions & 9 deletions doc/api/cli.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
- version: REPLACEME
pr-url: https://github.com/nodejs/node/pull/65323
description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down
4 changes: 4 additions & 0 deletions doc/api/globals.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
- version: REPLACEME
pr-url: https://github.com/nodejs/node/pull/65323
description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the

@aduh95aduh95Aug 25, 2026•
edited
Loading

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the

As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)

@avivkelleravivkellerAug 25, 2026

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)

We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit

Expand Down
10 changes: 5 additions & 5 deletions doc/node.1
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down
2 changes: 1 addition & 1 deletion src/node_options.cc
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
"experimental Web Worker API",
BOOL_FIELD(experimental_web_worker),
kAllowedInEnvvar,
false);
true);
AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-sqlite",
Expand Down
2 changes: 1 addition & 1 deletion src/node_options.h
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
DEFINE_BOOL_FIELD(experimental_web_worker) = true;
DEFINE_BOOL_FIELD(experimental_websocket) = true;
DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down
6 changes: 1 addition & 5 deletions test/common/wpt.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
this.resource = new ResourceLoader(path);
this.concurrency = concurrency;

// Since we need to prepare the Web Worker APIs
// in the harness that runs on all WPT workers,
// we enable the API globally. This has no practical
// effect on the non-web-worker tests, however.
this.flags = ['--experimental-web-worker'];
this.flags = [];
this.globalThisInitScripts = [];
this.initScript = null;

Expand Down
2 changes: 1 addition & 1 deletion test/parallel/test-common-wpt-backends.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
return {
Expand Down
2 changes: 1 addition & 1 deletion test/parallel/test-common-wpt-webworker-error.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
testRelativePath: 'workers/error-after-result.any.js',
wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down
1 change: 0 additions & 1 deletion test/parallel/test-worker-spec-differences.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
lib: enable web worker api by default#65323

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Open

avivkeller
wants to merge
1
commit into

base:main
Choose a base branch

from


+29

−24

 Open


lib: enable web worker api by default
#65323
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

Filter by extension
Filter by extension
Conversations

Failed to load comments. 
Loading
Jump to

Jump to file


Failed to load files. 
Loading
 Diff view

 Diff view


24 changes: 15 additions & 9 deletions
doc/api/cli.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1563,14 +1563,6 @@ changes:

Enable experimental WebAssembly System Interface (WASI) support.

### `--experimental-web-worker`

<!-- YAML
added: REPLACEME
-->

Enable experimental support for the Web Worker API.

### `--experimental-worker-inspection`

<!-- YAML
Expand DownExpand Up@@ -2147,6 +2139,20 @@ changes:

Disable the experimental [`node:sqlite`][] module.

### `--no-experimental-web-worker`

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1.1 - Active Development

Disable support for the Web Worker API.

### `--no-experimental-webstorage`

<!-- YAML
Expand DownExpand Up@@ -3914,7 +3920,6 @@ one is included in the list below.
* `--experimental-vfs`
* `--experimental-vm-modules`
* `--experimental-wasi-unstable-preview1`
* `--experimental-web-worker`
* `--experimental-websocket`
* `--force-context-aware`
* `--force-fips`
Expand DownExpand Up@@ -3946,6 +3951,7 @@ one is included in the list below.
* `--no-experimental-global-navigator`
* `--no-experimental-sqlite`
* `--no-experimental-strip-types`
* `--no-experimental-web-worker`
* `--no-experimental-webstorage`
* `--no-extra-info-on-fatal-exception`
* `--no-force-async-hooks-checks`
Expand Down

4 changes: 4 additions & 0 deletions
doc/api/globals.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -1319,6 +1319,10 @@ A browser-compatible implementation of {WebSocket}.

<!-- YAML
added: REPLACEME
changes:
 - version: REPLACEME
 pr-url: https://github.com/nodejs/node/pull/65323
 description: This feature is now enabled by default.
-->

> Stability: 1 - Experimental. Enable this API with the
@aduh95aduh95Aug 25, 2026•

edited

Loading

Copy link


Copy Markdown

Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.


Suggested change

> Stability: 1 - Experimental. Enable this API with the
> Stability: 1 - Experimental. Disable this API with the
As mentioned in #65323 (review), you also need to update the link (we need to get back some kind of automation to detect broken links)
@avivkelleravivkellerAug 25, 2026

Copy link


Copy Markdown

MemberAuthor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

(we need to get back some kind of automation to detect broken links)
We have one in @node-core/remark-lint, but I've put integrating it into core on hold, I can revisit
Expand Down

10 changes: 5 additions & 5 deletions
doc/node.1

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,9 +836,6 @@ Enable experimental ES Module support in the \fBnode:vm\fR module.
.It Fl -experimental-wasi-unstable-preview1
Enable experimental WebAssembly System Interface (WASI) support.
.
.It Fl -experimental-web-worker
Enable experimental support for the Web Worker API.
.
.It Fl -experimental-worker-inspection
Enable experimental support for the worker inspection with Chrome DevTools.
.
Expand DownExpand Up@@ -1110,6 +1107,9 @@ Legacy alias for \fB--no-require-module\fR.
.It Fl -no-experimental-sqlite
Disable the experimental \fBnode:sqlite\fR module.
.
.It Fl -no-experimental-web-worker
Disable support for the Web Worker API.
.
.It Fl -no-experimental-webstorage
Disable \fBWeb Storage\fR support.
.
Expand DownExpand Up@@ -2034,8 +2034,6 @@ one is included in the list below.
.It
\fB--experimental-wasi-unstable-preview1\fR
.It
\fB--experimental-web-worker\fR
.It
\fB--experimental-websocket\fR
.It
\fB--force-context-aware\fR
Expand DownExpand Up@@ -2098,6 +2096,8 @@ one is included in the list below.
.It
\fB--no-experimental-strip-types\fR
.It
\fB--no-experimental-web-worker\fR
.It
\fB--no-experimental-webstorage\fR
.It
\fB--no-extra-info-on-fatal-exception\fR
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.cc

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -599,7 +599,7 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
 "experimental Web Worker API",
 BOOL_FIELD(experimental_web_worker),
 kAllowedInEnvvar,
false);
true);
 AddOption("--experimental-websocket", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-global-customevent", "", NoOp{}, kAllowedInEnvvar);
 AddOption("--experimental-sqlite",
Expand Down

2 changes: 1 addition & 1 deletion
src/node_options.h

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -202,7 +202,7 @@ class EnvironmentOptions : public Options {
 DEFINE_BOOL_FIELD(experimental_addon_modules) = true;
 DEFINE_BOOL_FIELD(experimental_eventsource) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_ffi) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = EXPERIMENTALS_DEFAULT_VALUE;
 DEFINE_BOOL_FIELD(experimental_web_worker) = true;
 DEFINE_BOOL_FIELD(experimental_websocket) = true;
 DEFINE_BOOL_FIELD(experimental_sqlite) = HAVE_SQLITE;
 DEFINE_BOOL_FIELD(experimental_stream_iter) = EXPERIMENTALS_DEFAULT_VALUE;
Expand Down

6 changes: 1 addition & 5 deletions
test/common/wpt.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -836,11 +836,7 @@ class WPTRunner {
 this.resource = new ResourceLoader(path);
 this.concurrency = concurrency;

 // Since we need to prepare the Web Worker APIs
 // in the harness that runs on all WPT workers,
 // we enable the API globally. This has no practical
 // effect on the non-web-worker tests, however.
 this.flags = ['--experimental-web-worker'];
 this.flags = [];
 this.globalThisInitScripts = [];
 this.initScript = null;

Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-backends.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,7 +16,7 @@ const queueProbe = process.env.NODE_TEST_WPT_QUEUE_PROBE === '1';

const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const specPath = fixtures.path('wpt-backends-spec.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];

function payload(throws) {
 return {
Expand Down

2 changes: 1 addition & 1 deletion
test/parallel/test-common-wpt-webworker-error.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -10,7 +10,7 @@ const { Worker } = require('worker_threads');

const workerPath = path.join(__dirname, '../common/wpt/worker.js');
const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
const execArgv = ['--experimental-web-worker'];
const execArgv = [];
const workerData = {
 testRelativePath: 'workers/error-after-result.any.js',
 wptRunner: path.join(__dirname, '../common/wpt.js'),
Expand Down

1 change: 0 additions & 1 deletion
test/parallel/test-worker-spec-differences.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
// Flags: --experimental-web-worker
'use strict';

const common = require('../common');
Expand Down
Loading