Re: [w3c/ServiceWorker] TPAC 2025 status report (Issue #1787)
[w3ctag/design-reviews] [ig/security] Security Interest Group Charter (Issue #1289)
[w3ctag/design-reviews] Incubation: (Issue #1288)
Re: [w3c/ServiceWorker] TPAC 2026 Status Report (Issue #1845)
[whatwg/webidl] Editorial: fix note about error types (PR #1644)
[w3ctag/design-reviews] Other Spec Review: CSS line-clamp (Issue #1287)
[w3ctag/design-reviews] [wg/dp] Digital Policy Group Charter (Issue #1286)
[whatwg/fetch] Don't expose body size for cross-origin or tainted subframe navigations (PR #1961)
Re: [WICG/webcomponents] Reference Target: feedback from developers (Issue #1120)
[whatwg/fetch] Response body info (decoded/encoded size) should be zeroed for cross-origin subframe navigation (Issue #1960)
Re: [w3c/screen-orientation] TPAC 2026 Status Report (Issue #282)
Re: [w3c/push-api] TPAC 2026 Status Report (Issue #418)
Re: [w3c/manifest] TPAC 2026 Status Report (Issue #1240)
[w3c/manifest] chore: export the "applied" dfn for cross-spec linking (PR #1247)
[w3c/push-api] Fetch declarative push message resources without a service worker (PR #421)
[w3ctag/design-reviews] Incubation: Declarative Performance Observer (Issue #1285)
[whatwg/webidl] Intent to use constructor steps (Issue #1643)
Re: [w3c/IndexedDB] Spec mostly doesn't mention blob expectations (Issue #454)
[whatwg/dom] Add a get the global algorithm for event listeners (PR #1503)
[w3ctag/design-reviews] Incubation: Web Haptics API (Issue #1284)
[w3c/ServiceWorker] Should active service worker for service worker be itself? (Issue #1850)
- Re: [w3c/ServiceWorker] Should active service worker for service worker be itself? (Issue #1850)
- Re: [w3c/ServiceWorker] Should active service worker for service worker be itself? (Issue #1850)
Re: [whatwg/dom] Should event dispatch check that the event target is in a fully active realm? (Issue #1084)
[w3ctag/design-reviews] [wg/rml] RML Working Group (Issue #1283)
[w3ctag/design-reviews] Other Spec Review: (Issue #1282)
Re: [w3ctag/design-reviews] Question: Architectural issue: local path hijacking and cloud sync lock-in vs user agency (Issue #1272)
[whatwg/dom] test (PR #1502)
Re: [w3ctag/design-reviews] Other Spec Review: HTML menu elements (Issue #1242)
- Re: [w3ctag/design-reviews] Other Spec Review: HTML menu elements (Issue #1242)
- Re: [w3ctag/design-reviews] Other Spec Review: HTML menu elements (Issue #1242)
[w3c/IndexedDB] Clarify usage of resizable ArrayBuffer as keys (Issue #509)
Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
- Re: [whatwg/dom] Add OpaqueRange interface (PR #1404)
[w3ctag/design-reviews] [wg/audio] [Audio] Group Charter (Issue #1281)
Re: [whatwg/fetch] Add size limiter to `Body#formData` method (Issue #1592)
- Re: [whatwg/fetch] Add size limiter to `Body#formData` method (Issue #1592)
- Re: [whatwg/fetch] Add size limiter to `Body#formData` method (Issue #1592)
- Re: [whatwg/fetch] Add size limiter to `Body#formData` method (Issue #1592)
- Re: [whatwg/fetch] Add size limiter to `Body#formData` method (Issue #1592)
Re: [w3ctag/design-reviews] WG Revision: WebTransport (Issue #1212)
[whatwg/webidl] Review Draft Publication: September 2026 (PR #1642)
- Re: [whatwg/webidl] Review Draft Publication: September 2026 (PR #1642)
- Re: [whatwg/webidl] Review Draft Publication: September 2026 (PR #1642)
Re: [w3ctag/design-reviews] Other Spec Review: CSS navigation-based styling (Issue #1253)
Re: [w3ctag/design-reviews] Other Spec Review: Add keyword "pair" to scroll-snap-type for snapping to the same element in X and Y axes (Issue #1271)
[w3c/permissions] Tara (Issue #480)
[w3ctag/design-reviews] [wg/privacy] Privacy Working Group Charter (Issue #1280)
Re: [w3c/manifest] Way to detect if a web app is installed (in the app) (Issue #1092)
Re: [whatwg/webidl] Add an extended attribute to allow propagating TC39's AsyncContext (PR #1568)
Re: [WICG/webcomponents] Proposed agenda for CSSWG meeting (Issue #1124)
[whatwg/streams] https:/onlyfans.com (Issue #1382)
[w3ctag/design-reviews] FYI: SVG textPath side attribute (Issue #1279)
[w3ctag/design-reviews] [wg/ARIA] [Accessible Rich Internet Applications] Group Charter (Issue #1278)
[w3c/IndexedDB] Specify SharedArrayBuffer can not be used as a key. (PR #508)
Re: [w3c/editing] Add ability to control native undo/redo stack (Issue #509)
- Re: [w3c/editing] Add ability to control native undo/redo stack (Issue #509)
- Re: [w3c/editing] Add ability to control native undo/redo stack (Issue #509)
Re: [whatwg/fetch] Hide range values from no-cors cross-origin range requests (Issue #1936)
[w3c/push-api] Post-quantum readiness (Issue #420)
Re: [w3c/IndexedDB] Key Paths: Support iteration step operator (#35)
[whatwg/fetch] Fix inverted redirect-taint check for COEP: credentialless (PR #1959)
[whatwg/webidl] Editorial: list ArrayBuffer first in BufferSource (PR #1641)
- Re: [whatwg/webidl] Editorial: list ArrayBuffer first in BufferSource (PR #1641)
- Re: [whatwg/webidl] Editorial: list ArrayBuffer first in BufferSource (PR #1641)
- Re: [whatwg/webidl] Editorial: list ArrayBuffer first in BufferSource (PR #1641)
[whatwg/fetch] COEP credentials/taint (Issue #1958)
- Re: [whatwg/fetch] COEP credentials/taint (Issue #1958)
- Re: [whatwg/fetch] COEP credentials/taint (Issue #1958)
[w3c/permissions] Permissions policy gap: a site can disable a capability entirely, but can't restrict it to non-persistent grants (Issue #479)
[whatwg/webidl] Invoking a callback interface on a cross-origin Location or WindowProxy enters the other origin's realm (Issue #1640)
Re: [whatwg/dom] Proposal: moveOrInsertBefore() (Issue #1406)
- Re: [whatwg/dom] Proposal: moveOrInsertBefore() (Issue #1406)
- Re: [whatwg/dom] Proposal: moveOrInsertBefore() (Issue #1406)
- Re: [whatwg/dom] Proposal: moveOrInsertBefore() (Issue #1406)
Re: [whatwg/fetch] Send "null" Origin header on cross-origin .onion requests (PR #1351)
Re: [w3c/ServiceWorker] should document.open() inherit the controller? (#1313)
Re: [w3c/ServiceWorker] should a frame navigated to about:blank inherit a service worker controller? (#1350)
Re: [w3c/ServiceWorker] Should we specify behavior for using objects from detached contexts? (#1221)
Re: [w3c/ServiceWorker] spec behavior when ServiceWorkerContainer parent client is dead (#777)
Re: [whatwg/dom] Custom element callback/promise for "connected and parsed" (#662)
- Re: [whatwg/dom] Custom element callback/promise for "connected and parsed" (#662)
- Re: [whatwg/dom] Custom element callback/promise for "connected and parsed" (#662)
- Re: [whatwg/dom] Custom element callback/promise for "connected and parsed" (#662)
Re: [whatwg/dom] Provide an AbortSignal that aborts when Nodes become disconnected (Issue #1296)
- Re: [whatwg/dom] Provide an AbortSignal that aborts when Nodes become disconnected (Issue #1296)
- Re: [whatwg/dom] Provide an AbortSignal that aborts when Nodes become disconnected (Issue #1296)
Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
- Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
- Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
- Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
- Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
- Re: [whatwg/dom] Add reference target to shadow root (PR #1353)
[w3ctag/design-reviews] [wg/pm] Publishing Maintenance Working Group Charter (Issue #1277)
[whatwg/webidl] Intent to use Constants (Issue #1639)
[whatwg/webidl] Ebaone (Issue #1638)
Re: [w3ctag/design-reviews] Other Spec Review: CSS scroll-axis-lock (Issue #1248)
[w3c/gamepad] Spec gamepad input events (PR #234)
- Re: [w3c/gamepad] Spec gamepad input events (PR #234)
- Re: [w3c/gamepad] Spec gamepad input events (PR #234)
- Re: [w3c/gamepad] Spec gamepad input events (PR #234)
- Re: [w3c/gamepad] Spec gamepad input events (PR #234)
- Re: [w3c/gamepad] Spec gamepad input events (PR #234)
Re: [w3ctag/design-reviews] WG New Spec: Attribution (Issue #1229)
Re: [w3ctag/design-reviews] Incubation: Email Verification Protocol (Issue #1169)
[w3c/IndexedDB] deleteDatabase() developer note says result is null; the method steps set it to undefined (Issue #507)
[w3c/IndexedDB] Clarify usage of SharedArrayBuffer as key (Issue #506)
- Re: [w3c/IndexedDB] Clarify usage of SharedArrayBuffer as key (Issue #506)
- Re: [w3c/IndexedDB] Clarify usage of SharedArrayBuffer as key (Issue #506)
Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
- Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
- Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
- Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
- Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
- Re: [whatwg/dom] Add a fully active check for EventTarget in event listener inner invoke (PR #1085)
[whatwg/xhr] get user (Issue #409)
Re: [whatwg/webidl] Propagate a type's extended attributes to a nullable inner type (PR #1624)
- Re: [whatwg/webidl] Propagate a type's extended attributes to a nullable inner type (PR #1624)
- Re: [whatwg/webidl] Propagate a type's extended attributes to a nullable inner type (PR #1624)
- Re: [whatwg/webidl] Propagate a type's extended attributes to a nullable inner type (PR #1624)
[whatwg/webidl] Intent to use Constants (Issue #1637)
Re: [w3ctag/design-reviews] Incubation: Prerendering cross-origin iframes (Issue #1207)
- Re: [w3ctag/design-reviews] Incubation: Prerendering cross-origin iframes (Issue #1207)
- Re: [w3ctag/design-reviews] Incubation: Prerendering cross-origin iframes (Issue #1207)
Re: [w3c/ServiceWorker] Preventing server-forced updates (#822)
- Re: [w3c/ServiceWorker] Preventing server-forced updates (#822)
- Re: [w3c/ServiceWorker] Preventing server-forced updates (#822)
- Re: [w3c/ServiceWorker] Preventing server-forced updates (#822)
Re: [whatwg/fetch] Update to constructor operations (#929)
Re: [WICG/webcomponents] The is="" attribute is confusing? Maybe we should encourage only ES6 class-based extension. (#509)
[w3c/gamepad] [Extensions] (Issue #233)
Re: [w3ctag/design-reviews] WG Revision: Web Speech API: SpeechRecognitionResult Timestamps (Issue #1267)
- Re: [w3ctag/design-reviews] WG Revision: Web Speech API: SpeechRecognitionResult Timestamps (Issue #1267)
- Re: [w3ctag/design-reviews] WG Revision: Web Speech API: SpeechRecognitionResult Timestamps (Issue #1267)
- Re: [w3ctag/design-reviews] WG Revision: Web Speech API: SpeechRecognitionResult Timestamps (Issue #1267)
Re: [w3ctag/design-reviews] Question: Could the TAG help define "The Web Platform" vs "The Web" or some other useful distinctions? (Issue #1202)
Re: [w3ctag/design-reviews] Question: Review manifest-first Web Install API (Issue #1245)
- Re: [w3ctag/design-reviews] Question: Review manifest-first Web Install API (Issue #1245)
- Re: [w3ctag/design-reviews] Question: Review manifest-first Web Install API (Issue #1245)
[whatwg/streams] Why do Readers and Writers have constructors? (Issue #1381)
[whatwg/webidl] Why do Readers and Writers have constructors? (Issue #1636)
- Re: [whatwg/webidl] Why do Readers and Writers have constructors? (Issue #1636)
- Re: [whatwg/webidl] Why do Readers and Writers have constructors? (Issue #1636)
Re: [w3c/manifest] Add `application-context` CSS media feature (PR #1218)
- Re: [w3c/manifest] Add `application-context` CSS media feature (PR #1218)
- Re: [w3c/manifest] Add `application-context` CSS media feature (PR #1218)
Re: [w3c/selection-api] `anchorNode` & `focusNode` can never be in shadow tree? (Issue #361)
[w3ctag/design-reviews] [wg/did] Decentralized Identifier Group Charter (Issue #1276)
Re: [w3c/editing] IOS Safari: Ability to opt-out of Form assistant bar (which is useless for single-field editors and takes up a lot of space) (Issue #545)
Re: [w3c/editing] iOS Safari: URL bar invisible hitbox overlaps text selection grab circle (Issue #550)
Re: [w3c/editing] iOS Safari: Support meta content="interactive-widget=resizes-content" (Issue #549)
[whatwg/webidl] Intent to use Constants (Issue #1635)
Re: [whatwg/url] URL path comparison (Issue #814)
Re: [w3c/gamepad] Proposal for the Gamepad Interop 2027 (Issue #231)
Re: [whatwg/webidl] Fix `BufferSource` algorithms for shared and resizable buffers (PR #1529)
[w3c/push-api] Notification images shouldn't be fetched through service worker for declarative push (Issue #419)
Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
- Re: [whatwg/fetch] Define multipart/form-data (PR #1922)
Re: [w3c/clipboard-apis] Clipboarding and Multipart MIME (Issue #247)
Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)
- Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)
- Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)
- Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)
- Re: [w3ctag/design-reviews] CSS Overflow Navigation Controls (Carousels) (Issue #1037)
Re: [w3c/manifest] WPT/dev testability: Create way to test features related to / currently dependent on install (Issue #1194)
Re: [whatwg/webidl] `Legacy platform object [[Set]]` inconsistent with default JavaScript `[[Set]]` behavior (Issue #1536)
[whatwg/webidl] Intent to use Constants (Issue #1634)
Re: [w3ctag/design-reviews] [wg/math] Math Group Charter (Issue #1214)
[w3c/clipboard-apis] shown (Issue #252)
Re: [w3c/editing] Chrome: Selection barrier at details element when contenteditable=true (Issue #538)
[w3ctag/design-reviews] [wg/lws] Linked Web Storage Working Group Charter (Issue #1275)
[whatwg/webidl] Facebook (Issue #1633)
Re: [w3c/clipboard-apis] Standardize Clipboard Source url, aka the URL from which the content has been copied from (Issue #244)
Re: [w3ctag/design-reviews] Incubation: Application Capability (Issue #1255)
Re: [w3c/ServiceWorker] Size limits with synchronous WebAssembly functions (#1499)
Re: [w3c/ServiceWorker] Avoid double refresh on service worker update (#1504)
Re: [w3c/ServiceWorker] Recovering from start failures (#1503)
Re: [w3c/ServiceWorker] navigate() behavior in browsers for file:/// and mixed content does not match spec (#1500)
Re: [w3c/ServiceWorker] OPTIONS request reported as GET (#1498)
- Re: [w3c/ServiceWorker] OPTIONS request reported as GET (#1498)
- Re: [w3c/ServiceWorker] OPTIONS request reported as GET (#1498)
- Re: [w3c/ServiceWorker] OPTIONS request reported as GET (#1498)
Re: [w3c/ServiceWorker] Credentials on scripts imported by importScripts() (#1497)
Re: [w3c/ServiceWorker] Allow caches to opt-in to granular cleanup (#863)
[w3ctag/design-reviews] Incubation: (Issue #1274)
- Re: [w3ctag/design-reviews] Incubation: (Issue #1274)
- Re: [w3ctag/design-reviews] Incubation: (Issue #1274)
- Re: [w3ctag/design-reviews] Incubation: (Issue #1274)
Re: [whatwg/fetch] Add support for compression dictionary transport (PR #1854)
Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
- Re: [whatwg/dom] Record task-like timing in fire an event (PR #1462)
[w3c/DOM-Parsing] Editorial: fix typo (PR #90)
- Re: [w3c/DOM-Parsing] Editorial: fix typo (PR #90)
- Re: [w3c/DOM-Parsing] Editorial: fix typo (PR #90)
[w3c/FileAPI] Use environments for blob URL access checks (PR #225)
- Re: [w3c/FileAPI] Use environments for blob URL access checks (PR #225)
- Re: [w3c/FileAPI] Use environments for blob URL access checks (PR #225)
- Re: [w3c/FileAPI] Use environments for blob URL access checks (PR #225)
- Re: [w3c/FileAPI] Use environments for blob URL access checks (PR #225)
- Re: [w3c/FileAPI] Use environments for blob URL access checks (PR #225)
[w3c/ServiceWorker] Editorial: add exported Unregister Service Workers algorithm (PR #1849)
- Re: [w3c/ServiceWorker] Editorial: add exported Unregister Service Workers algorithm (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
- Re: [w3c/ServiceWorker] Add Unregister Service Workers algorithm for use by other specifications (PR #1849)
[w3c/ServiceWorker] Editorial: add exported Register a Service Worker algorithm (PR #1848)
- Re: [w3c/ServiceWorker] Editorial: add exported Register a Service Worker algorithm (PR #1848)
- Re: [w3c/ServiceWorker] Editorial: add exported Register a Service Worker algorithm (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
- Re: [w3c/ServiceWorker] Add Register a Service Worker algorithm for use by other specifications (PR #1848)
[w3c/ServiceWorker] Editorial: export Soft Update algorithm (PR #1847)
- Re: [w3c/ServiceWorker] Editorial: export Soft Update algorithm (PR #1847)
- Re: [w3c/ServiceWorker] Editorial: export Soft Update algorithm (PR #1847)
- Re: [w3c/ServiceWorker] Export Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
- Re: [w3c/ServiceWorker] Add Request Soft Update algorithm for use by other specifications (PR #1847)
[w3c/ServiceWorker] Export SW primitives needed by FedCM and Payment Handler for JIT registration (Issue #1846)
Re: [w3ctag/design-reviews] WG New Spec: Global Privacy Control (GPC) (Issue #1265)
Re: [w3c/ServiceWorker] Feature detection for type="module" support (#1582)
[whatwg/fetch] Meta: export a response's redirect taint/timing allow passed flag (PR #1957)
Re: [w3ctag/design-reviews] Incubation: Autofill Event (Issue #1197)
Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)
- Re: [whatwg/url] Add URL path equality and prefix comparison (PR #929)