Suggestion	Votes
1. Add HTTP 103 Early Hints	58
2. css/svg property dominant-baseline	43
3. Add support for DNS RRs, like HTTPS and SVCB	42
4. Suggestion: MediaRecorder.isTypeSupported supported types/codecs	41
5. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)	40
6. + WASM SIMD	35
7. Entries for href values including `tel:1234567` and `sms:1234567`	33
8. WebExtensions (browser extensions)	31
9. CSS3 module "Generated Content for Paged Media" and especially the target-counter function	29
10. Hyphenation Options	28
11. Add WebDriver	27
12. XSLT Support table	26
13. Native HTML Switches	25
14. Can I use Reporting API	25
15. [Request] Please add Web Assembly Garbage Collection (WasmGC)	25
16. Show Support for JSON Modules	24
17. Add CSS property `caret-shape` and shorthand `caret`	23
18. Priority hints API	23
19. border-corner-shape	23
20. JavaScript: Tail Call Support information missing	23
21. External import maps	23
22. Add ES7/2016 SIMD	21
23. New feature: CSS Typed Object Model (CSS Typed OM)	21
24. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....	21
25. Add CSS Grid Layout Module Level 3 (Masonry!)	21
26. Add ShadowRealm API	20
27. Geo URI scheme	19
28. device-cmyk css feature	19
29. Add CSS `field-sizing` (previously `form-sizing`)	19
30. Page Lifecycle API	18
31. Support constructible stylesheets / adoptedStyleSheets	18
32. Add tracking for Explicit Resource Management (`using` and `await using`)	17
33. `content: leader('.');`	17
34. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...	16
35. Add Webassembly Threads / Threaded Webassembly	16
36. ElementInternals/form-associated custom element	15
37. Support Intrinsic Size Attribute	15
38. New feature request: OCSP must-staple	14
39. Add the Quite OK Image Format (QOI) …maybe eventually	14
40. input-security	14
41. CSS 3 property: text-autospace and text-spacing	14
42. Async iterators / for await of	14
43. I suggest support for TransferableObject types (of which there are several)	13
44. Color Fonts including SVG-in-OT fonts	13
45. WebP & AVIF favicons	13
46. Add Web Share Target API	13
47. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more)	13
48. Support for SVG's "shape-rendering" CSS property.	13
49. Add: Webassembly Garbage Collection	12
50. CSS Box Alignment Module Level 3	12
51. Page-margin boxes (@top-center, etc)	12
52. Add float: footnote to CSS3	12
53. Tiff image format	11
54. Add the `<search>` element	11
55. Add "outline follows border-radius"	11
56. CSS3 Speech Module Which browsers support it? See	11
57. Add `WebOTP` to list of apis	11
58. Add caniuse data for Contact Picker API	11
59. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...	11
60. Add supported elliptical curves (HTTPS/TLS)	11
61. Add "HDR AVIF" image support	11
62. Add WebRTC insertable streams	11
63. Track Intl.Segmenter	10
64. Add Web Share Level 2	10
65. Include `baseline-shift` CSS property	10
66. HTTP2 Server Push	10
67. Add Report-To API (Intervention Reports)	10
68. Support CSS two-value display syntax	10
69. one-time-code	10
70. webcl?	10
71. SVG viewport-fill property support	10
72. Add CSS Custom Highlight API	10
73. queueMicrotask support	10
74. @font-face descriptors to override font metrics	10
75. caniuse : Constructable Stylesheet	10
76. Badging API	10
77. Add the HTML focusgroup attribute	9
78. Add CSS animation timing function spring()	9
79. Add CSS Gap Decorations	9
80. Add SVG `use` with external reference	9
81. Quota Management API	9
82. Cookies: max-age	9
83. List support for the window.fetch keepalive option	9
84. -ms-overflow-style	9
85. SVG viewport-fill-opacity property support	9
86. Add support for Private State Tokens	8
87. Add text-wrap: pretty	8
88. User-Agent Client Hints (UA-CH)	8
89. Add support for @starting-style rule	8
90. WebGL extensions	8
91. Add Versatile Video Coding (VVC) aka. H.266 … somewhen	8
92. Add CSS property -- `object-view-box`	8
93. input[autocomplete] (values besides on/off)	8
94. Add Incremental Font Transfer	7
95. Add 'require-sri-for' CSP Directive	7
96. Add `WebSocketStream` API	7
97. New feature request: x25519 Key Exchange	7
98. Add Fetch upload streaming	7
99. RFC7692 Compression Extensions for WebSocket	7
100. Alt-Svc header browser support info: consider adding	7
101. Add support for iterator helpers	7
102. Feature: Origin-bound one-time codes delivered via SMS	7
103. Feature request: Matroska (MKV) video container	7
104. Add Declarative Web Push	7
105. Please add "isInputPending()"	7
106. HTML Modules	7
107. Audio codec - xHE-AAC / USAC	7
108. Add Web Neural Network (WebNN)	7
109. This regards adding support for the navigator.userAgentData	7
110. autocorrect for input fileds	7
111. Add Invoker Commands, `command` & `commandfor` (previously: Invokers, `invoketarget` & `invokeaction`)	7
112. Secure Cookie flag	7
113. Support for the frame-ancestors directive	7
114. Add `multipart/x-mixed-replace`	7
115. USDZ file format	6
116. Support for MHTML	6
117. Add the `:modal` pseudo-class	6
118. Module Worker support	6
119. Add System Colors item	6
120. CanIUse OpenSearch	6
121. JS Self-Profiling API	6
122. add Accessibility Object Model	6
123. Add Web Share Target API Level 2	6
124. Add "page based counters"	6
125. Window Placement API	6
126. Add CSS Values and Units Module Level 4 Mathematical Expressions	6
127. new CSS trigonometry functions	6
128. Observable	6
129. MediaStream Image Capture	6
130. WebCrypto Key Discovery	6
131. Accelerated Shape Detection in Images	6
132. Add `enterkeyhint` attribute ("Enter Key Hint")	6
133. Add Memory64 browser feature	6
134. Playback of videos with alpha channel	6
135. Add tracking for "Ultra HDR JPG"	6
136. Flag storage that is not available under private mode	6
137. Support Experimental "ES Pipe Operator (|>)"	6
138. Support 'name' attribute on <details> ("Accordion pattern using name attribute on <details> elements")	6
139. Add "CICP in images"	6
140. Add HTTP method: QUERY	6
141. viewport meta tag	6
142. CSS tag {content: url()}	6
143. Geofencing API	6
144. Add ECC certificates	6
145. Cannot see |ImageCapture| entry in the web interface.	6
146. Embedded color profiles in JPEG images.	6
147. ECMAScript 2024 (ES15) summary page and feature support list	6
148. webkit-calendar-picker-indicator	5
149. CSS Round Display	5
150. Add Intl.DurationFormat	5
151. Add support tables for document.documentElement.clientWidth	5
152. Add supports() queries on @import	5
153. Track the status of the JavaScript Promise Integration specification	5
154. Input Events Level 1 and 2	5
155. Add the `<model>` element	5
156. HTTP Strict Transport Security Preload	5
157. Adding Khronos gITF 2.0 for 3D models	5
158. Payment Handler API	5
159. Add IPFS (Interplanetary File System) protocol to Caniuse	5
160. Feature: A Well-Known URL for Changing Passwords	5
161. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only	5
162. roundRect	5
163. audio / video autoplay attribute and play function	5
164. New top level domains (TLD)	5
165. add window-inactive pseudo-class	5
166. CSS Shaders -	5
167. Can I Use m4a?	5
168. Support individual CSP rules	5
169. Tracking various WebAuthn features	5
170. Bundled HTTP Exchanges	5
171. Add Local Font Access API	5
172. Please track the various HTTP Set-Cookie options supported by browsers	5
173. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...	5
174. Add font-palette-values	5
175. Add raw sockets API	5
176. Global Privacy Control (GPC) "Sec-GPC" HTTP header	5
177. Graphite font support	5
178. Add gRPC support	5
179. webp2 support	5
180. Input type=email with "multiple" attribute	5
181. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler	5
182. SameParty cookie attribute	4
183. Add Cookie Store API	4
184. Add Intl.DisplayNames	4
185. Add meta "format-detection"	4
186. Scroll State container queries	4
187. For printing support for the size:landscape option to tell the browser what page orientation we want...	4
188. Support for Digital Goods API	4
189. filename*=UTF-8''...	4
190. The !important css thing. It's very !important ;).	4
191. Let's add a page for box alignment	4
192. add @mixin and @function	4
193. X25519Kyber768 Hybrid Post-Quantum Key Exchange for HTTPS	4
194. CSS image() functional notation (e.g. for background-images etc). See	4
195. Support SVG width/height = auto	4
196. Web locks	4
197. Safe Assignment Operator	4
198. Snap Events: scrollsnapchange and scrollsnapchanging	4
199. Cache-Control	4
200. SVG sprites with <symbol> and <use>	4
201. Support aria-hidden html property	4
202. ::-webkit-file-upload-button	4
203. Support the W3 Web Annotation standard (W3C Recommendation)	4
204. documentMode	4
205. Support information for horizontal-viewport-segments and vertical-viewport-segments	4
206. Accessibility of in-browser PDF Viewer	4
207. Add server-timing as a trailer	4
208. [CSS Level 4 pseudo-class] :user-error	4
209. Arithmetic coded JPEG support	4
210. Add Media Session API Coverage Information	4
211. File Handling API	4
212. Add support for passwordrules input attribute	4
213. Support for Geometry Property (SVG 2.0) `r` in CSS	4
214. Browser support for Running elements	3
215. Add support for requestSubmit	3
216. No information about the `unselectable` HTML attribute.	3
217. Add 'animated GIF as favicon'?	3
218. Add support for addHitRegion	3
219. video codecs	3
220. Support for CSS3 background-repeat-x and background-repeat-y properties	3
221. getEventListeners not listed	3
222. dns.resolve	3
223. Add `dynamic-range` media query	3
224. CSS view-timeline supports	3
225. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...	3
226. Add HTMLPermissionElement	3
227. Private Click Measurement (PCM)	3
228. Content-Security-Policy: script-nonce	3
229. Add support for HTTP header X-Permitted-Cross-Domain-Policies	3
230. ECMAscript - static properties	3
231. Show ANSI escape code for console.log.	3
232. Track `<input type="color" alpha>` support	3
233. Add CSS scroll-target-group	3
234. CSS @function rule	3
235. Add CMYK Color Space	3
236. IPv6 support in web browsers	3
237. justify-content: space-around	3
238. Missing feature: Clipboard API supported mimetypes	3
239. Add "Responsive Video" aka. `media` attribute for `<source>` element in `<video>`	3
240. New browser feature: rest/spread in object literals	3
241. display: table-caption?	3
242. Video media in image contexts	3
243. Add Wide Color Gamut in 2D Canvas	3
244. add iframe.csp	3
245. Add "Window Controls Overlay"	3
246. place-items shorthand for justify and align	3
247. Support new global attribute: writingsuggestions	3
248. add captureVisibleTab	3
249. CSS multicol data is mixed with fragmentation	3
250. Add information for the webcal and webcals protocols for subscribing to iCalendars	3
251. Public class properties	3
252. Web bundles	3
253. permessage-deflate	2
254. stroke-linejoin support	2
255. Add Date.prototype.toTemporalInstant()	2
256. CMAF	2
257. Track adoption of DOMFrameContentLoaded event	2
258. A new page for Grid track animation should be added	2
259. Add "Scheduled Task API"	2
260. Support for hrefTranslate	2
261. Add Container Units aka. Container Relative Lengths	2
262. text-space-collapse	2
263. Add backdrop-filter: url()	2
264. Add inner-spin-button and outer-spin-button	2
265. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)	2
266. WebXR Hand Input Module - Level 1	2
267. Please add more detailed WebRTC features	2
268. Information about WavPack audio format	2
269. WebAuthN: "prf" extension support	2
270. Tooltip display on focus	2
271. track support for the media query feature -ms-high-contrast	2
272. Show which browsers have a native CSV viewer	2
273. `from-image` as initial value of `image-orientation`	2
274. Add WebCGM	2
275. Add TPG image file format	2
276. Support for IAMF file format	2
277. Add RFC 8879 TLS Certificate Compression	2
278. Add `letter-spacing` support for percentage values	2
279. Add `:local-link` pseudo selector	2
280. support destructuring assignment as separate es feature	2
281. Add chrome.webrequests	2
282. Add `clipboardchange` event	2
283. Metadata name: HandheldFriendly	2
284. Add auto-expand `<details>` for find-in-page and fragment navigations	2
285. CSS word-break: 'auto-phrase' and 'manual'	2
286. Metadata name: MobileOptimized	2
287. Add block-step-size property for CSS	2
288. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)	2
289. Add pdf parameters support	2
290. Add VisualViewport.segments support data	2
291. add secure payment confirmation (W3C)	2
292. Add Change Array by Copy methods	2
293. DNS-over-HTTPS (DoH)	2
294. <semantics> element in MathML is not found in caniuse.com	2
295. add csp lv2 violation event	2
296. Drag and Drop API - ghost image with customizable opacity	2
297. Can I use X3D?	2
298. Device-Memory Client Hint & navigator.deviceMemory JS API	2
299. console.assert(boolean_expression)	2
300. UTF-8 Dingbats	2
301. Support KV Storage build-in module	2
302. Basic Authentication: AuthName directive	2
303. x-webkit-speech	2
304. Storage Access API	2
305. Request: nav-up, nav-down, nav-left, nav-right css3 properties	2
306. Input type=range with "multiple" attribute	2
307. SVG image auto height	2
308. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...	2
309. Spatial Navigation support	2
310. HTTP immutable responses	2
311. CSS touch-action level 2 values	2
312. Add app-region?	2
313. HTTP Trailers	2
314. srcset/sizes attribute / picture element support in SVG	2
315. Support of sms: and mms: in mobile browsers is not clear	2
316. Animating SVG paths using CSS	2
317. String.prototype.split() with a regex with grouping ( parentheses ).	2
318. onerror event on iframe	2
319. SVG symbols in CSS	2
320. setTimeout and setInterval callback parameters	2
321. Add HTTP_ORIGIN feature	2
322. Add Integrated Windows Authentication	2
323. Add PNG cursor	2
324. rel="ar" support	2
325. Add the Javascript double asterisk power operator (**) to the list of supported features	2
326. Add browser support for toggle()	2
327. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...	2
328. SharedMemory/Atomics	2
329. SSML	2
330. Add information on context-stroke and context-fill	2
331. What about showing support for various link attributes, like "subresource" or "dns-pr...	2
332. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...	2
333. add "unicode property escapes"	2
334. Add Geolocation Sensor	2
335. Loading Signed Exchanges	2
336. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...	2
337. getFilesAndDirectories	2
338. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format	2
339. Touch Icons (apple-touch-icon)	2
340. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties	2
341. string-set	2
342. Add CSS4 Grid structural selectors	2
343. Wildcard "*" support for Access-Control-Allow-Headers/Methods	2
344. 'font-size' descriptor for '@font-face'	1
345. Support of webkitAudioDecodedByteCount	1
346. CSS generated images: Stripes	1
347. Adding Managed Media Source	1
348. request support for 'accept-charset'	1
349. add CSS Extensions meant for renaming	1
350. Content-Security-Policy: navigate-to	1
351. Audio format: AC-3, eac3	1
352. X.509 Name Constraints	1
353. x-webkit-airplay	1
354. Add "Scoped Custom Element Registry" as it is now behind an experimental feature flag in Chrome	1
355. Add WebDriver BiDi	1
356. event.path	1
357. SHA2 certificates	1
358. WebSerial	1
359. column combination	1
360. Internationalized Domain Name	1
361. Please add support data for "CSS property: clip-path: inset()". Thank you!	1
362. Add box-suppress	1
363. Add Gradient Interpolation Color Spaces	1
364. document type	1
365. Add Range.getBoundingClientRect browser support table	1
366. Add a footnote regarding HTMLAudioElement	1
367. DeviceOrientation and DeviceMotion events on insecure origins	1
368. Audio Output Devices API: wd	1
369. Add URL.canParse()	1
370. Add `new Intl.DateTimeFormat().resolvedOptions().hour12`	1
371. Add tracking for ASTC hdr profile	1
372. Add variable units	1
373. Add `@font-feature-values`	1
374. Opus: Need data for MP4 and WebM containers	1
375. Support info for the <track> element	1
376. Drag and Drop API - move constraints	1
377. window.localMediaStream is not listed	1
378. browserconfig.xml support info	1
379. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?	1
380. Add caret-animation	1
381. Add Structured Error Data for Filtered DNS	1
382. Suggestion | Safe Operator: ?=	1
383. longdesc attribute support	1
384. CSS Values 3 `src()` function	1
385. webauthn: Related Origin Requests (ROR)	1
386. Add Inference capabilities from browser.trial.ml	1
387. create @Media Types	1
388. Request support data for bevelled="true" attribute in MathML	1
389. Add support for CRL	1
390. Add `::search-text` (& `::search-text:current`)	1
391. script tag onerror attribute	1
392. Add WICG/compression-dictionary-transport	1
393. MediaStream Recording (	1
394. Add inherited value references	1
395. import.sync()	1
396. accesskey attribute on non-focusable elements (should cause a click element to fire	1
397. <meta name="apple-mobile-web-app-capable" content="yes" />	1
398. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)	1
399. CSS value random()	1
400. Add `<mapviewer>` (inline MapML)	1
401. Textarea wrap attribute (off, soft, hard, virtual, physical)	1
402. hidden=until-found added to Safari	1
403. Add Web Install API	1
404. udp: add feature	1
405. `border-color: currentColor;`	1
406. viewport-fit	1
407. Add Web Preferences API …maybe eventually	1
408. Add Object.prototype.watch method	1
409. 32-bit HDR PNG	1
410. Please add TLS certificate algorithms to caniuse	1
411. mediacapture-region	1
412. prefers-reduced-transparency CSS Media Query	1
413. show support for namespacing; for example <svg: namespace	1
414. The xml:space attribute	1
415. Add selection.getComposedRange() feature check	1
416. Add Web Translation API …maybe eventually	1
417. Support for CSS Color Module Level 5	1
418. CSS property media-controls-panel	1
419. Add windows-theme media query selector	1
420. Add Device Posture API (formerly Screen Fold API)	1
421. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?	1
422. add onstorage	1
423. Feature request: Token Binding Protocol	1
424. Feature request: tc39 Explicit Resource Management	1
425. Add CSS `@property`	1
426. Add Isolated Web Apps (IWAs)	1
427. Support for VSR (Video Super Resolution) on Nvidia and Intel GPUs	1
428. Add `@supports at-rule`	1
429. IETF RFCs	1
430. CSS Inline Layout	1
431. Add standalone MathML files in MML format	1
432. SVG 2: inline-size property for text	1
433. import reflection for WASM	1
434. CAA DNS record	1
435. Suggested addition: navigator.cpuClass	1
436. Add page for relative path in HTTP Location	1
437. bidi algorithm (for right-to-left Unicode characters)	1
438. FLoC support	1
439. https mixed mode	1
440. date.toLocaleString support tracking plz?	1
441. Add `::-webkit-details-marker`	1
442. Add: "color" and "background-color" CSS on <option> elements	1
443. Add URL Protocol Handler Registration for PWAs	1
444. Report Retry-After header support	1
445. requestPostAnimationFrame browser support?	1
446. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)	1
447. E4X: ECMAScript for XML	1
448. DownloadURL	1
449. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)	1
450. Add "specifying a color profile: the `@color-profile` at-rule"	1
451. missing HTTP TRACE method	1
452. Add entry for DTLS 1.3	1
453. Support for Service Worker Life Cycle Events	1
454. Add a matrix entyre for opentype-with-cff2	1
455. Can you please add the Stack trace API that exists in V8	1
456. Add H2 ORIGIN frame support	1
457. stroke-linecap support	1
458. Add compatibility for FormData	1
459. window.watchMedia()	1
460. OfflineAudioContext	1
461. Add support information for font metric override descriptors	1
462. nested calc() and var()	1
463. baseline-middle	1
464. Add layout-instability support	1
465. InsertKey Behaviour Overwrite/Normal Mode	1
466. Add Support for MPEG-4 Part 2 SP/ASP	1
467. Add desynchronized (low latency canvas contexts)	1
468. Add support for svg fill-rule	1
469. Clean up css-touch-action	1
470. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox	1
471. Adding contain-intrinsic-size (suggestion)	1
472. Request: IPv6 proxy functions (myIpAddressEx and friends)	1
473. Support for calc() in polygon and other shapes	1
474. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft	1
475. Streams API: transferable streams	1
476. Use of es6 import statements in workers	1
477. iframe disallowdocumentaccess property	1
478. performance.measureMemory()	1
479. The event handler window.onscroll is missing	1
480. How to show support for font-variation-settings within @font-face?	1
481. Refresh	1
482. <object>.contentWindow Support	1
483. auto Picture-in-Picture	1
484. supported-color-schemes & prefers-color-scheme	1
485. please add the onsearch event	1
486. step property of input field with type datetime-local and time	1
487. CSS3 new text-transform keywords	1
488. [Feature Policy: sub-feature] Sandbox features	1
489. Character-based alignment in a table column using text-align	1
490. Suggestion: @font-face src OpenType collection support	1
491. Add support for CSS3 move-to property	1
492. Add Capture Handle	1
493. Add support for the HTTP header X-Download-Options	1
494. SHA1 certificates	1
495. Add `font-variant-emoji`	1
496. Add `target="_new"`	1
497. Add CSS Scroll Snap Module Level 2	1
498. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually	1
499. Add Background Blur API	1
500. aria-labelledby	1
501. Add Web MIDI 2.0 …maybe eventually	1
502. Missing `StorageQuota` support	1
503. Add XSL to caniuse	1
504. [Suggestion] display: fullscreen	1
505. reflected-xss missing	1
506. What is the browser support for the newly proposed "page-orientation" property?	1
507. Add `blocking=render`	1
508. Add IndexedDB 3.0	1
509. Add Payment Request API 1.1	1
510. Add tech() function support (in @font-face src)	1
511. add mouse event positions event.offsetX and event.offsetY	1
512. Open search autodiscovery	1
513. Add "Named function expressions"	1
514. Add `PWA file handlers`	1
515. Web monetization	1
516. add micropub	1
517. Sec-Ch-wow64	1
518. Missing computed property names	1
519. Chained selectors	1
520. feature request: video/MP2T	1
521. Add: Tracking Preference Expression APIs	1
522. Suggestion: support for margin-collapse?	1
523. HTTP Content-encoding: LZFSE	1
524. Add MathML Core	1
525. Support data for Unicode flag on HTML pattern attribute	1
526. Add compatibility data for QuickTime video format	1
527. Support for Unicode and spaces in URL	1
528. Add Notification Triggers	1
529. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"	1
530. Javascript pseudoprotocol	1
531. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates	1
532. sec-ch-prefers headers	1
533. Add "Controlling Font Display Per Font-Family via @font-feature-values"	1
534. URLSearchParams.prototype.sort	1
535. MPNG	1
536. add aria-required to caniuse, if not already there	1
537. Support HTJ2K	1
538. Add optional type syntax for JavaScript …maybe eventually	1
539. Add `Notification.prototype​.showTrigger️`	1
540. aria-current	1
541. Add css-timing	1
542. Add CSS Toggles …maybe eventually	1
543. Add High Resolution Time Level 3	1
544. Add WebMCP …maybe eventually	1