| 1. Add HTTP 103 Early Hints | 57 |
| 2. css/svg property dominant-baseline | 43 |
| 3. Suggestion: MediaRecorder.isTypeSupported supported types/codecs | 41 |
| 4. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication) | 39 |
| 5. Add support for DNS RRs, like HTTPS and SVCB | 38 |
| 6. + WASM SIMD | 35 |
| 7. Entries for href values including `tel:1234567` and `sms:1234567` | 32 |
| 8. WebExtensions (browser extensions) | 31 |
| 9. Add WebDriver | 27 |
| 10. CSS3 module "Generated Content for Paged Media" and especially the target-counter function | 27 |
| 11. Hyphenation Options | 27 |
| 12. Can I use Reporting API | 25 |
| 13. Show Support for JSON Modules | 24 |
| 14. External import maps | 23 |
| 15. JavaScript: Tail Call Support information missing | 23 |
| 16. border-corner-shape | 23 |
| 17. Priority hints API | 23 |
| 18. Native HTML Switches | 23 |
| 19. Add CSS property `caret-shape` and shorthand `caret` | 22 |
| 20. XSLT Support table | 22 |
| 21. Add ES7/2016 SIMD | 21 |
| 22. Add CSS Grid Layout Module Level 3 (Masonry!) | 21 |
| 23. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak.... | 21 |
| 24. [Request] Please add Web Assembly Garbage Collection (WasmGC) | 21 |
| 25. New feature: CSS Typed Object Model (CSS Typed OM) | 20 |
| 26. Add ShadowRealm API | 19 |
| 27. device-cmyk css feature | 19 |
| 28. Add CSS `field-sizing` (previously `form-sizing`) | 19 |
| 29. Geo URI scheme | 18 |
| 30. Page Lifecycle API | 18 |
| 31. Support constructible stylesheets / adoptedStyleSheets | 18 |
| 32. `content: leader('.');` | 17 |
| 33. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su... | 16 |
| 34. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte... | 16 |
| 35. ElementInternals/form-associated custom element | 15 |
| 36. Support Intrinsic Size Attribute | 15 |
| 37. Add Webassembly Threads / Threaded Webassembly | 15 |
| 38. New feature request: OCSP must-staple | 14 |
| 39. input-security | 14 |
| 40. Color Fonts including SVG-in-OT fonts | 13 |
| 41. Async iterators / for await of | 13 |
| 42. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more) | 13 |
| 43. I suggest support for TransferableObject types (of which there are several) | 13 |
| 44. Add Web Share Target API | 13 |
| 45. CSS 3 property: text-autospace and text-spacing | 13 |
| 46. Add tracking for Explicit Resource Management (`using` and `await using`) | 12 |
| 47. webM alpha transparency | 12 |
| 48. Soft hyphen: html entity ­ | 12 |
| 49. Add float: footnote to CSS3 | 12 |
| 50. Support for SVG's "shape-rendering" CSS property. | 12 |
| 51. Page-margin boxes (@top-center, etc) | 12 |
| 52. WebP & AVIF favicons | 12 |
| 53. CSS Box Alignment Module Level 3 | 12 |
| 54. CSS3 Speech Module Which browsers support it? See | 11 |
| 55. Tiff image format | 11 |
| 56. Add "outline follows border-radius" | 11 |
| 57. Add `WebOTP` to list of apis | 11 |
| 58. Add WebRTC insertable streams | 11 |
| 59. Add: Webassembly Garbage Collection | 11 |
| 60. Add the `<search>` element | 11 |
| 61. Add caniuse data for Contact Picker API | 11 |
| 62. Add the Quite OK Image Format (QOI) …maybe eventually | 11 |
| 63. @font-face descriptors to override font metrics | 10 |
| 64. Track Intl.Segmenter | 10 |
| 65. Badging API | 10 |
| 66. queueMicrotask support | 10 |
| 67. Add Web Share Level 2 | 10 |
| 68. Add Report-To API (Intervention Reports) | 10 |
| 69. Support CSS two-value display syntax | 10 |
| 70. caniuse : Constructable Stylesheet | 10 |
| 71. Add supported elliptical curves (HTTPS/TLS) | 10 |
| 72. one-time-code | 10 |
| 73. webcl? | 10 |
| 74. Add CSS Custom Highlight API | 10 |
| 75. SVG viewport-fill property support | 10 |
| 76. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ... | 10 |
| 77. Include `baseline-shift` CSS property | 10 |
| 78. Add the HTML focusgroup attribute | 9 |
| 79. Add CSS animation timing function spring() | 9 |
| 80. SVG viewport-fill-opacity property support | 9 |
| 81. Add SVG `use` with external reference | 9 |
| 82. List support for the window.fetch keepalive option | 9 |
| 83. Quota Management API | 9 |
| 84. Add "HDR AVIF" image support | 9 |
| 85. Cookies: max-age | 9 |
| 86. -ms-overflow-style | 9 |
| 87. HTTP2 Server Push | 9 |
| 88. Add Versatile Video Coding (VVC) … somewhen | 8 |
| 89. User-Agent Client Hints (UA-CH) | 8 |
| 90. WebGL extensions | 8 |
| 91. Add text-wrap: pretty | 8 |
| 92. Add support for @starting-style rule | 8 |
| 93. Add CSS property -- `object-view-box` | 8 |
| 94. input[autocomplete] (values besides on/off) | 8 |
| 95. Add support for Private State Tokens | 8 |
| 96. Add Incremental Font Transfer | 7 |
| 97. RFC7692 Compression Extensions for WebSocket | 7 |
| 98. Add `WebSocketStream` API | 7 |
| 99. Please add "isInputPending()" | 7 |
| 100. Add 'require-sri-for' CSP Directive | 7 |
| 101. New feature request: x25519 Key Exchange | 7 |
| 102. Alt-Svc header browser support info: consider adding | 7 |
| 103. Add support for iterator helpers | 7 |
| 104. HTML Modules | 7 |
| 105. Add Fetch upload streaming | 7 |
| 106. Add `multipart/x-mixed-replace` | 7 |
| 107. Feature: Origin-bound one-time codes delivered via SMS | 7 |
| 108. Secure Cookie flag | 7 |
| 109. Add Web Neural Network (WebNN) | 7 |
| 110. This regards adding support for the navigator.userAgentData | 7 |
| 111. Audio codec - xHE-AAC / USAC | 7 |
| 112. Support for the frame-ancestors directive | 7 |
| 113. autocorrect for input fileds | 7 |
| 114. MediaStream Image Capture | 6 |
| 115. add Accessibility Object Model | 6 |
| 116. USDZ file format | 6 |
| 117. Support 'name' attribute on <details> ("Accordion pattern using name attribute on <details> elements") | 6 |
| 118. Support for MHTML | 6 |
| 119. Accelerated Shape Detection in Images | 6 |
| 120. Add Invoker Commands, `command` & `commandfor` (previously: Invokers, `invoketarget` & `invokeaction`) | 6 |
| 121. Add `enterkeyhint` attribute ("Enter Key Hint") | 6 |
| 122. Add CSS Values and Units Module Level 4 Mathematical Expressions | 6 |
| 123. Observable | 6 |
| 124. Geofencing API | 6 |
| 125. Add tracking for "Ultra HDR JPG" | 6 |
| 126. Embedded color profiles in JPEG images. | 6 |
| 127. Module Worker support | 6 |
| 128. new CSS trigonometry functions | 6 |
| 129. Add ECC certificates | 6 |
| 130. WebCrypto Key Discovery | 6 |
| 131. Add the `:modal` pseudo-class | 6 |
| 132. Flag storage that is not available under private mode | 6 |
| 133. CanIUse OpenSearch | 6 |
| 134. Window Placement API | 6 |
| 135. Cannot see |ImageCapture| entry in the web interface. | 6 |
| 136. CSS tag {content: url()} | 6 |
| 137. Add Web Share Target API Level 2 | 6 |
| 138. Add System Colors item | 6 |
| 139. Input Events Level 1 and 2 | 5 |
| 140. Add HTTP method: QUERY | 5 |
| 141. Add support tables for document.documentElement.clientWidth | 5 |
| 142. Global Privacy Control (GPC) "Sec-GPC" HTTP header | 5 |
| 143. roundRect | 5 |
| 144. Adding Khronos gITF 2.0 for 3D models | 5 |
| 145. CSS Round Display | 5 |
| 146. Add "CICP in images" | 5 |
| 147. Add "page based counters" | 5 |
| 148. add window-inactive pseudo-class | 5 |
| 149. webp2 support | 5 |
| 150. Feature: A Well-Known URL for Changing Passwords | 5 |
| 151. Add gRPC support | 5 |
| 152. Tracking various WebAuthn features | 5 |
| 153. Can I Use m4a? | 5 |
| 154. Bundled HTTP Exchanges | 5 |
| 155. Add font-palette-values | 5 |
| 156. JS Self-Profiling API | 5 |
| 157. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler | 5 |
| 158. Add IPFS (Interplanetary File System) protocol to Caniuse | 5 |
| 159. Add supports() queries on @import | 5 |
| 160. viewport meta tag | 5 |
| 161. Add Intl.DurationFormat | 5 |
| 162. Support individual CSP rules | 5 |
| 163. Add the `<model>` element | 5 |
| 164. Payment Handler API | 5 |
| 165. Graphite font support | 5 |
| 166. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects | 5 |
| 167. audio / video autoplay attribute and play function | 5 |
| 168. Input type=email with "multiple" attribute | 5 |
| 169. Please track the various HTTP Set-Cookie options supported by browsers | 5 |
| 170. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ... | 5 |
| 171. CSS Shaders - | 5 |
| 172. Add raw sockets API | 5 |
| 173. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only | 5 |
| 174. HTTP Strict Transport Security Preload | 5 |
| 175. Web locks | 4 |
| 176. New top level domains (TLD) | 4 |
| 177. CSS image() functional notation (e.g. for background-images etc). See | 4 |
| 178. Support SVG width/height = auto | 4 |
| 179. The !important css thing. It's very !important ;). | 4 |
| 180. Add support for passwordrules input attribute | 4 |
| 181. Support Experimental "ES Pipe Operator (|>)" | 4 |
| 182. [CSS Level 4 pseudo-class] :user-error | 4 |
| 183. Support for Geometry Property (SVG 2.0) `r` in CSS | 4 |
| 184. Playback of videos with alpha channel | 4 |
| 185. Support aria-hidden html property | 4 |
| 186. File Handling API | 4 |
| 187. Cache-Control | 4 |
| 188. filename*=UTF-8''... | 4 |
| 189. SameParty cookie attribute | 4 |
| 190. ::-webkit-file-upload-button | 4 |
| 191. Support for Digital Goods API | 4 |
| 192. Add Media Session API Coverage Information | 4 |
| 193. Add meta "format-detection" | 4 |
| 194. SVG sprites with <symbol> and <use> | 4 |
| 195. Scroll State container queries | 4 |
| 196. Arithmetic coded JPEG support | 4 |
| 197. Add Intl.DisplayNames | 4 |
| 198. Safe Assignment Operator | 4 |
| 199. Track the status of the JavaScript Promise Integration specification | 4 |
| 200. Support information for horizontal-viewport-segments and vertical-viewport-segments | 4 |
| 201. Support the W3 Web Annotation standard (W3C Recommendation) | 4 |
| 202. Add server-timing as a trailer | 4 |
| 203. X25519Kyber768 Hybrid Post-Quantum Key Exchange for HTTPS | 4 |
| 204. Snap Events: scrollsnapchange and scrollsnapchanging | 4 |
| 205. webkit-calendar-picker-indicator | 4 |
| 206. Add Cookie Store API | 4 |
| 207. For printing support for the size:landscape option to tell the browser what page orientation we want... | 4 |
| 208. Add Local Font Access API | 4 |
| 209. documentMode | 4 |
| 210. Accessibility of in-browser PDF Viewer | 4 |
| 211. Content-Security-Policy: script-nonce | 3 |
| 212. CSS multicol data is mixed with fragmentation | 3 |
| 213. Public class properties | 3 |
| 214. Add "Window Controls Overlay" | 3 |
| 215. Add Wide Color Gamut in 2D Canvas | 3 |
| 216. Add CMYK Color Space | 3 |
| 217. Web bundles | 3 |
| 218. Add 'animated GIF as favicon'? | 3 |
| 219. Private Click Measurement (PCM) | 3 |
| 220. No information about the `unselectable` HTML attribute. | 3 |
| 221. Add support for requestSubmit | 3 |
| 222. ECMAscript - static properties | 3 |
| 223. Show ANSI escape code for console.log. | 3 |
| 224. Missing feature: Clipboard API supported mimetypes | 3 |
| 225. Add `dynamic-range` media query | 3 |
| 226. New browser feature: rest/spread in object literals | 3 |
| 227. Add support for addHitRegion | 3 |
| 228. justify-content: space-around | 3 |
| 229. getEventListeners not listed | 3 |
| 230. Add CSS if() function | 3 |
| 231. Video media in image contexts | 3 |
| 232. Support for CSS3 background-repeat-x and background-repeat-y properties | 3 |
| 233. Add information for the webcal and webcals protocols for subscribing to iCalendars | 3 |
| 234. Support new global attribute: writingsuggestions | 3 |
| 235. Let's add a page for box alignment | 3 |
| 236. place-items shorthand for justify and align | 3 |
| 237. add iframe.csp | 3 |
| 238. Add "Responsive Video" aka. `media` attribute for `<source>` element in `<video>` | 3 |
| 239. Add Memory64 browser feature | 3 |
| 240. Add support for HTTP header X-Permitted-Cross-Domain-Policies | 3 |
| 241. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d... | 3 |
| 242. IPv6 support in web browsers | 3 |
| 243. display: table-caption? | 3 |
| 244. video codecs | 3 |
| 245. CSS view-timeline supports | 3 |
| 246. Add block-step-size property for CSS | 2 |
| 247. Add `::target-text` (from CSS Pseudo-Elements Module Level 4) | 2 |
| 248. onerror event on iframe | 2 |
| 249. Add browser support for toggle() | 2 |
| 250. Support for hrefTranslate | 2 |
| 251. Metadata name: MobileOptimized | 2 |
| 252. Metadata name: HandheldFriendly | 2 |
| 253. `from-image` as initial value of `image-orientation` | 2 |
| 254. support destructuring assignment as separate es feature | 2 |
| 255. Animating SVG paths using CSS | 2 |
| 256. Tooltip display on focus | 2 |
| 257. UTF-8 Dingbats | 2 |
| 258. text-space-collapse | 2 |
| 259. HTTP Trailers | 2 |
| 260. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image... | 2 |
| 261. Request: nav-up, nav-down, nav-left, nav-right css3 properties | 2 |
| 262. track support for the media query feature -ms-high-contrast | 2 |
| 263. Drag and Drop API - ghost image with customizable opacity | 2 |
| 264. CMAF | 2 |
| 265. Track adoption of DOMFrameContentLoaded event | 2 |
| 266. Add `letter-spacing` support for percentage values | 2 |
| 267. Add pdf parameters support | 2 |
| 268. Support for IAMF file format | 2 |
| 269. Add VisualViewport.segments support data | 2 |
| 270. Can I use X3D? | 2 |
| 271. WebXR Hand Input Module - Level 1 | 2 |
| 272. Input type=range with "multiple" attribute | 2 |
| 273. add RTSP and RTSP 2.0 (Real Time Streaming Protocol) | 2 |
| 274. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio... | 2 |
| 275. Add TPG image file format | 2 |
| 276. Add Date.prototype.toTemporalInstant() | 2 |
| 277. Support of sms: and mms: in mobile browsers is not clear | 2 |
| 278. Add Change Array by Copy methods | 2 |
| 279. DNS-over-HTTPS (DoH) | 2 |
| 280. Add Container Units aka. Container Relative Lengths | 2 |
| 281. x-webkit-speech | 2 |
| 282. Touch Icons (apple-touch-icon) | 2 |
| 283. Please add more detailed WebRTC features | 2 |
| 284. Add chrome.webrequests | 2 |
| 285. add secure payment confirmation (W3C) | 2 |
| 286. Add auto-expand `<details>` for find-in-page and fragment navigations | 2 |
| 287. stroke-linejoin support | 2 |
| 288. Add "Scheduled Task API" | 2 |
| 289. Show which browsers have a native CSV viewer | 2 |
| 290. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi... | 2 |
| 291. Add CSS4 Grid structural selectors | 2 |
| 292. SVG symbols in CSS | 2 |
| 293. Basic Authentication: AuthName directive | 2 |
| 294. What about showing support for various link attributes, like "subresource" or "dns-pr... | 2 |
| 295. CSS word-break: 'auto-phrase' and 'manual' | 2 |
| 296. A new page for Grid track animation should be added | 2 |
| 297. setTimeout and setInterval callback parameters | 2 |
| 298. rel="ar" support | 2 |
| 299. add "unicode property escapes" | 2 |
| 300. dns.resolve | 2 |
| 301. Storage Access API | 2 |
| 302. CSS touch-action level 2 values | 2 |
| 303. Wildcard "*" support for Access-Control-Allow-Headers/Methods | 2 |
| 304. Add PNG cursor | 2 |
| 305. SSML | 2 |
| 306. <semantics> element in MathML is not found in caniuse.com | 2 |
| 307. Add Geolocation Sensor | 2 |
| 308. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format | 2 |
| 309. Add Integrated Windows Authentication | 2 |
| 310. Loading Signed Exchanges | 2 |
| 311. Add information on context-stroke and context-fill | 2 |
| 312. string-set | 2 |
| 313. getFilesAndDirectories | 2 |
| 314. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties | 2 |
| 315. Support KV Storage build-in module | 2 |
| 316. HTTP immutable responses | 2 |
| 317. console.assert(boolean_expression) | 2 |
| 318. Device-Memory Client Hint & navigator.deviceMemory JS API | 2 |
| 319. String.prototype.split() with a regex with grouping ( parentheses ). | 2 |
| 320. add csp lv2 violation event | 2 |
| 321. SharedMemory/Atomics | 2 |
| 322. Add HTTP_ORIGIN feature | 2 |
| 323. SVG image auto height | 2 |
| 324. add captureVisibleTab | 2 |
| 325. Add the Javascript double asterisk power operator (**) to the list of supported features | 2 |
| 326. Spatial Navigation support | 2 |
| 327. srcset/sizes attribute / picture element support in SVG | 2 |
| 328. Add app-region? | 2 |
| 329. Support for Unicode and spaces in URL | 1 |
| 330. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.) | 1 |
| 331. Add WebDriver BiDi | 1 |
| 332. Add support for the HTTP header X-Download-Options | 1 |
| 333. Add `@font-feature-values` | 1 |
| 334. <meta name="apple-mobile-web-app-capable" content="yes" /> | 1 |
| 335. MediaStream Recording ( | 1 |
| 336. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols" | 1 |
| 337. Add URL.canParse() | 1 |
| 338. Add tracking for ASTC hdr profile | 1 |
| 339. accesskey attribute on non-focusable elements (should cause a click element to fire | 1 |
| 340. Add `new Intl.DateTimeFormat().resolvedOptions().hour12` | 1 |
| 341. Add variable units | 1 |
| 342. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro... | 1 |
| 343. Support data for Unicode flag on HTML pattern attribute | 1 |
| 344. Add `PWA file handlers` | 1 |
| 345. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table? | 1 |
| 346. Missing `StorageQuota` support | 1 |
| 347. import reflection for WASM | 1 |
| 348. Add `blocking=render` | 1 |
| 349. Add IndexedDB 3.0 | 1 |
| 350. script tag onerror attribute | 1 |
| 351. Add Payment Request API 1.1 | 1 |
| 352. Add tech() function support (in @font-face src) | 1 |
| 353. Character-based alignment in a table column using text-align | 1 |
| 354. aria-labelledby | 1 |
| 355. Missing computed property names | 1 |
| 356. Add Gradient Interpolation Color Spaces | 1 |
| 357. Web monetization | 1 |
| 358. Suggestion: @font-face src OpenType collection support | 1 |
| 359. CAA DNS record | 1 |
| 360. Add selection.getComposedRange() feature check | 1 |
| 361. SVG 2: inline-size property for text | 1 |
| 362. Add: Tracking Preference Expression APIs | 1 |
| 363. WebSerial | 1 |
| 364. Suggestion: support for margin-collapse? | 1 |
| 365. Please add support data for "CSS property: clip-path: inset()". Thank you! | 1 |
| 366. SHA1 certificates | 1 |
| 367. HTTP Content-encoding: LZFSE | 1 |
| 368. Opus: Need data for MP4 and WebM containers | 1 |
| 369. Support of webkitAudioDecodedByteCount | 1 |
| 370. add micropub | 1 |
| 371. `border-color: currentColor;` | 1 |
| 372. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates | 1 |
| 373. Add "Controlling Font Display Per Font-Family via @font-feature-values" | 1 |
| 374. Feature request: tc39 Explicit Resource Management | 1 |
| 375. Add CSS `@property` | 1 |
| 376. Add Isolated Web Apps (IWAs) | 1 |
| 377. Support for VSR (Video Super Resolution) on Nvidia and Intel GPUs | 1 |
| 378. Add `@supports at-rule` | 1 |
| 379. Add `:local-link` pseudo selector | 1 |
| 380. Add standalone MathML files in MML format | 1 |
| 381. Add Device Posture API (formerly Screen Fold API) | 1 |
| 382. Add WICG/compression-dictionary-transport | 1 |
| 383. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH. | 1 |
| 384. udp: add feature | 1 |
| 385. Add caret-animation | 1 |
| 386. Add Structured Error Data for Filtered DNS | 1 |
| 387. Suggestion | Safe Operator: ?= | 1 |
| 388. CSS Values 3 `src()` function | 1 |
| 389. WebAuthN: "prf" extension support | 1 |
| 390. webauthn: Related Origin Requests (ROR) | 1 |
| 391. Add Inference capabilities from browser.trial.ml | 1 |
| 392. permessage-deflate | 1 |
| 393. URLSearchParams.prototype.sort | 1 |
| 394. add aria-required to caniuse, if not already there | 1 |
| 395. Add Web Preferences API …maybe eventually | 1 |
| 396. Add "Scoped Custom Element Registry" as it is now behind an experimental feature flag in Chrome | 1 |
| 397. viewport-fit | 1 |
| 398. Content-Security-Policy: navigate-to | 1 |
| 399. Adding Managed Media Source | 1 |
| 400. CSS generated images: Stripes | 1 |
| 401. window.watchMedia() | 1 |
| 402. [Suggestion] display: fullscreen | 1 |
| 403. Textarea wrap attribute (off, soft, hard, virtual, physical) | 1 |
| 404. 'font-size' descriptor for '@font-face' | 1 |
| 405. Audio format: AC-3, eac3 | 1 |
| 406. X.509 Name Constraints | 1 |
| 407. Javascript pseudoprotocol | 1 |
| 408. Browser support for Running elements | 1 |
| 409. CSS property media-controls-panel | 1 |
| 410. 32-bit HDR PNG | 1 |
| 411. Please add TLS certificate algorithms to caniuse | 1 |
| 412. mediacapture-region | 1 |
| 413. prefers-reduced-transparency CSS Media Query | 1 |
| 414. Chained selectors | 1 |
| 415. Add High Resolution Time Level 3 | 1 |
| 416. Add css-timing | 1 |
| 417. aria-current | 1 |
| 418. Add Web Translation API …maybe eventually | 1 |
| 419. Support for CSS Color Module Level 5 | 1 |
| 420. [Feature Policy: sub-feature] Sandbox features | 1 |
| 421. Add H2 ORIGIN frame support | 1 |
| 422. Add Web MIDI 2.0 …maybe eventually | 1 |
| 423. Add URL Protocol Handler Registration for PWAs | 1 |
| 424. Support for calc() in polygon and other shapes | 1 |
| 425. Add support information for font metric override descriptors | 1 |
| 426. add CSS Extensions meant for renaming | 1 |
| 427. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft | 1 |
| 428. baseline-middle | 1 |
| 429. bidi algorithm (for right-to-left Unicode characters) | 1 |
| 430. FLoC support | 1 |
| 431. request support for 'accept-charset' | 1 |
| 432. Add `::-webkit-details-marker` | 1 |
| 433. Add: "color" and "background-color" CSS on <option> elements | 1 |
| 434. The event handler window.onscroll is missing | 1 |
| 435. column combination | 1 |
| 436. requestPostAnimationFrame browser support? | 1 |
| 437. line-height support and the differences in rendering between webkit&trident and other engines. | 1 |
| 438. browserconfig.xml support info | 1 |
| 439. E4X: ECMAScript for XML | 1 |
| 440. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`) | 1 |
| 441. Add "specifying a color profile: the `@color-profile` at-rule" | 1 |
| 442. missing HTTP TRACE method | 1 |
| 443. Add entry for DTLS 1.3 | 1 |
| 444. How to show support for font-variation-settings within @font-face? | 1 |
| 445. Refresh | 1 |
| 446. Add Object.prototype.watch method | 1 |
| 447. SHA2 certificates | 1 |
| 448. Internationalized Domain Name | 1 |
| 449. event.path | 1 |
| 450. Add Support for MPEG-4 Part 2 SP/ASP | 1 |
| 451. x-webkit-airplay | 1 |
| 452. What is the browser support for the newly proposed "page-orientation" property? | 1 |
| 453. Add layout-instability support | 1 |
| 454. Add Range.getBoundingClientRect browser support table | 1 |
| 455. Information about WavPack audio format | 1 |
| 456. InsertKey Behaviour Overwrite/Normal Mode | 1 |
| 457. DeviceOrientation and DeviceMotion events on insecure origins | 1 |
| 458. Audio Output Devices API: wd | 1 |
| 459. Add support for svg fill-rule | 1 |
| 460. document type | 1 |
| 461. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox | 1 |
| 462. Request: IPv6 proxy functions (myIpAddressEx and friends) | 1 |
| 463. Adding contain-intrinsic-size (suggestion) | 1 |
| 464. Add box-suppress | 1 |
| 465. Drag and Drop API - move constraints | 1 |
| 466. Add desynchronized (low latency canvas contexts) | 1 |
| 467. Clean up css-touch-action | 1 |
| 468. Streams API: transferable streams | 1 |
| 469. iframe disallowdocumentaccess property | 1 |
| 470. performance.measureMemory() | 1 |
| 471. Support info for the <track> element | 1 |
| 472. Add a footnote regarding HTMLAudioElement | 1 |
| 473. auto Picture-in-Picture | 1 |
| 474. Can you please add the Stack trace API that exists in V8 | 1 |
| 475. stroke-linecap support | 1 |
| 476. Add support for CSS3 move-to property | 1 |
| 477. sec-ch-prefers headers | 1 |
| 478. longdesc attribute support | 1 |
| 479. https mixed mode | 1 |
| 480. date.toLocaleString support tracking plz? | 1 |
| 481. Support HTJ2K | 1 |
| 482. Add optional type syntax for JavaScript …maybe eventually | 1 |
| 483. Add `Notification.prototype.showTrigger️` | 1 |
| 484. Report Retry-After header support | 1 |
| 485. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered) | 1 |
| 486. Add CSS Toggles …maybe eventually | 1 |
| 487. Suggested addition: navigator.cpuClass | 1 |
| 488. Sec-Ch-wow64 | 1 |
| 489. Add page for relative path in HTTP Location | 1 |
| 490. Support for Service Worker Life Cycle Events | 1 |
| 491. Add a matrix entyre for opentype-with-cff2 | 1 |
| 492. Add Capture Handle | 1 |
| 493. Add XSL to caniuse | 1 |
| 494. create @Media Types | 1 |
| 495. Add compatibility for FormData | 1 |
| 496. Add `font-variant-emoji` | 1 |
| 497. Add `target="_new"` | 1 |
| 498. Add CSS Scroll Snap Module Level 2 | 1 |
| 499. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually | 1 |
| 500. Add Background Blur API | 1 |
| 501. MPNG | 1 |
| 502. reflected-xss missing | 1 |
| 503. <object>.contentWindow Support | 1 |
| 504. Add compatibility data for QuickTime video format | 1 |
| 505. supported-color-schemes & prefers-color-scheme | 1 |
| 506. nested calc() and var() | 1 |
| 507. show support for namespacing; for example <svg: namespace | 1 |
| 508. The xml:space attribute | 1 |
| 509. window.localMediaStream is not listed | 1 |
| 510. feature request: video/MP2T | 1 |
| 511. please add the onsearch event | 1 |
| 512. step property of input field with type datetime-local and time | 1 |
| 513. CSS3 new text-transform keywords | 1 |
| 514. Add MathML Core | 1 |
| 515. Add windows-theme media query selector | 1 |
| 516. CSS Inline Layout | 1 |
| 517. Add Notification Triggers | 1 |
| 518. Use of es6 import statements in workers | 1 |
| 519. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)? | 1 |
| 520. add onstorage | 1 |
| 521. Add "Named function expressions" | 1 |
| 522. Open search autodiscovery | 1 |
| 523. Feature request: Token Binding Protocol | 1 |
| 524. DownloadURL | 1 |
| 525. IETF RFCs | 1 |
| 526. add mouse event positions event.offsetX and event.offsetY | 1 |
| 527. OfflineAudioContext | 1 |
| 528. Request support data for bevelled="true" attribute in MathML | 1 |