nodejs · Fitchers · Mar 11, 2026
diff --git a/test/fixtures/wpt/README.md b/test/fixtures/wpt/README.md
@@ -15,10 +15,10 @@ Last update:
 - console: https://github.com/web-platform-tests/wpt/tree/e48251b778/console
 - dom/abort: https://github.com/web-platform-tests/wpt/tree/dc928169ee/dom/abort
 - dom/events: https://github.com/web-platform-tests/wpt/tree/0a811c5161/dom/events
-- encoding: https://github.com/web-platform-tests/wpt/tree/1ac8deee08/encoding
+- encoding: https://github.com/web-platform-tests/wpt/tree/0dc50adc2e/encoding
 - fetch/data-urls/resources: https://github.com/web-platform-tests/wpt/tree/7c79d998ff/fetch/data-urls/resources
 - FileAPI: https://github.com/web-platform-tests/wpt/tree/7f51301888/FileAPI
-- hr-time: https://github.com/web-platform-tests/wpt/tree/34cafd797e/hr-time
+- hr-time: https://github.com/web-platform-tests/wpt/tree/6b16e87e48/hr-time
 - html/webappapis/atob: https://github.com/web-platform-tests/wpt/tree/f267e1dca6/html/webappapis/atob
 - html/webappapis/microtask-queuing: https://github.com/web-platform-tests/wpt/tree/2c5c3c4c27/html/webappapis/microtask-queuing
 - html/webappapis/structured-clone: https://github.com/web-platform-tests/wpt/tree/47d3fb280c/html/webappapis/structured-clone
@@ -27,13 +27,13 @@ Last update:
 - performance-timeline: https://github.com/web-platform-tests/wpt/tree/94caab7038/performance-timeline
 - resource-timing: https://github.com/web-platform-tests/wpt/tree/22d38586d0/resource-timing
 - resources: https://github.com/web-platform-tests/wpt/tree/1d2c5fb36a/resources
-- streams: https://github.com/web-platform-tests/wpt/tree/bc9dcbbf1a/streams
+- streams: https://github.com/web-platform-tests/wpt/tree/894c8d4858/streams
 - url: https://github.com/web-platform-tests/wpt/tree/c928b19ab0/url
 - urlpattern: https://github.com/web-platform-tests/wpt/tree/a2e15ad405/urlpattern
 - user-timing: https://github.com/web-platform-tests/wpt/tree/5ae85bf826/user-timing
 - wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/cde25e7e3c/wasm/jsapi
 - wasm/webapi: https://github.com/web-platform-tests/wpt/tree/fd1b23eeaa/wasm/webapi
-- web-locks: https://github.com/web-platform-tests/wpt/tree/10a122a6bc/web-locks
+- web-locks: https://github.com/web-platform-tests/wpt/tree/0633bb21ad/web-locks
 - WebCryptoAPI: https://github.com/web-platform-tests/wpt/tree/c9e955840a/WebCryptoAPI
 - webidl: https://github.com/web-platform-tests/wpt/tree/63ca529a02/webidl
 - webidl/ecmascript-binding/es-exceptions: https://github.com/web-platform-tests/wpt/tree/2f96fa1996/webidl/ecmascript-binding/es-exceptions

diff --git a/test/fixtures/wpt/hr-time/WEB_FEATURES.yml b/test/fixtures/wpt/hr-time/WEB_FEATURES.yml
@@ -0,0 +1,3 @@
+features:
+- name: performance
+  files: "**"
diff --git a/test/fixtures/wpt/hr-time/idlharness-shadowrealm.window.js b/test/fixtures/wpt/hr-time/idlharness-shadowrealm.window.js
diff --git a/test/fixtures/wpt/hr-time/idlharness.any.js b/test/fixtures/wpt/hr-time/idlharness.any.js
@@ -1,4 +1,4 @@
-// META: global=window,worker
+// META: global=window,worker,shadowrealm-in-window
 // META: script=/resources/WebIDLParser.js
 // META: script=/resources/idlharness.js
 // META: timeout=long
@@ -11,6 +11,10 @@ idl_test(
   ['hr-time'],
   ['html', 'dom'],
   async idl_array => {
+    if (self.GLOBAL.isShadowRealm()) {
+      return;
+    }
+
     if (self.GLOBAL.isWorker()) {
       idl_array.add_objects({ WorkerGlobalScope: ['self'] });
     } else {

diff --git a/test/fixtures/wpt/hr-time/raf-coarsened-time.https.html b/test/fixtures/wpt/hr-time/raf-coarsened-time.https.html
@@ -0,0 +1,36 @@
+<!doctype html>
+<html>
+<head>
+  <link rel="help" href="https://html.spec.whatwg.org/multipage/webappapis.html#update-the-rendering">
+  <script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<script>
+    /* Coarsen to 5 microseconds or coarser */
+    const COARSE_RESOLUTION = 0.005;
+
+    const CUSTOM_TIMELINE_DELTA = 0.002;
+    const FLOATING_POINT_ERROR_EPSILON = 0.01;
+
+    // Note that this test would fail if the platform introduces a jitter.
+    // It is recommended that platforms that implement jitter run this test
+    // with a flag that turns jitter off, if possible.
+
+    const customTimeline = new DocumentTimeline({originTime: CUSTOM_TIMELINE_DELTA});
+    promise_test(async t => {
+        for (let i = 0; i < 32; ++i) {
+            const timestamp = await new Promise(resolve => requestAnimationFrame(ts => resolve(ts)));
+            const coarse_timestamp = Math.round(timestamp / COARSE_RESOLUTION) * COARSE_RESOLUTION;
+            assert_approx_equals(timestamp, coarse_timestamp, FLOATING_POINT_ERROR_EPSILON,
+              "timestamp should be coarsened");
+            assert_approx_equals(timestamp, document.timeline.currentTime, FLOATING_POINT_ERROR_EPSILON,
+              "document.timeline.currentTimeline should be the same as the rAF callback");
+            assert_approx_equals(customTimeline.currentTime + CUSTOM_TIMELINE_DELTA,
+              timestamp, FLOATING_POINT_ERROR_EPSILON,
+              "originTime for custom timeline should not be coarsened");
+        }
+    });
+</script>
+</body>
+</html>
diff --git a/test/fixtures/wpt/hr-time/raf-coarsened-time.https.html.headers b/test/fixtures/wpt/hr-time/raf-coarsened-time.https.html.headers
@@ -0,0 +1,2 @@
+Cross-Origin-Embedder-Policy: require-corp
+Cross-Origin-Opener-Policy: same-origin
diff --git a/test/fixtures/wpt/versions.json b/test/fixtures/wpt/versions.json
@@ -20,7 +20,7 @@
     "path": "dom/events"
   },
   "encoding": {
-    "commit": "1ac8deee082ecfb5d3b6f9c56cf9d1688a2fc218",
+    "commit": "0dc50adc2e989134defaea66aacff377ab940543",
     "path": "encoding"
   },
   "fetch/data-urls/resources": {
@@ -32,7 +32,7 @@
     "path": "FileAPI"
   },
   "hr-time": {
-    "commit": "34cafd797e58dad280d20040eee012d49ccfa91f",
+    "commit": "6b16e87e48e6f91ac2e3c91f925b125a342f5ae8",
     "path": "hr-time"
   },
   "html/webappapis/atob": {
@@ -68,7 +68,7 @@
     "path": "resources"
   },
   "streams": {
-    "commit": "bc9dcbbf1a4c2c741ef47f47d6ede6458f40c4a4",
+    "commit": "894c8d48583be8721f8f712400929baeb9a8782f",
     "path": "streams"
   },
   "url": {
@@ -92,7 +92,7 @@
     "path": "wasm/webapi"
   },
   "web-locks": {
-    "commit": "10a122a6bc3670a44e0fa8b9a99f6aa9012d30f1",
+    "commit": "0633bb21ad37f95809b4dc04b8c7d56e9df5ad40",
     "path": "web-locks"
   },
   "WebCryptoAPI": {
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Cross-Origin-Embedder-Policy: require-corp
		Cross-Origin-Opener-Policy: same-origin