| 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. [Request] Please add Web Assembly Garbage Collection (WasmGC) | 25 |
| 15. Can I use Reporting API | 25 |
| 16. Show Support for JSON Modules | 24 |
| 17. JavaScript: Tail Call Support information missing | 23 |
| 18. border-corner-shape | 23 |
| 19. Add CSS property `caret-shape` and shorthand `caret` | 23 |
| 20. Priority hints API | 23 |
| 21. External import maps | 23 |
| 22. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak.... | 21 |
| 23. Add CSS Grid Layout Module Level 3 (Masonry!) | 21 |
| 24. Add ES7/2016 SIMD | 21 |
| 25. New feature: CSS Typed Object Model (CSS Typed OM) | 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. `content: leader('.');` | 17 |
| 33. Add tracking for Explicit Resource Management (`using` and `await using`) | 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. Support Intrinsic Size Attribute | 15 |
| 37. ElementInternals/form-associated custom element | 15 |
| 38. input-security | 14 |
| 39. Async iterators / for await of | 14 |
| 40. Add the Quite OK Image Format (QOI) …maybe eventually | 14 |
| 41. CSS 3 property: text-autospace and text-spacing | 14 |
| 42. New feature request: OCSP must-staple | 14 |
| 43. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more) | 13 |
| 44. Color Fonts including SVG-in-OT fonts | 13 |
| 45. Add Web Share Target API | 13 |
| 46. WebP & AVIF favicons | 13 |
| 47. I suggest support for TransferableObject types (of which there are several) | 13 |
| 48. Support for SVG's "shape-rendering" CSS property. | 13 |
| 49. Page-margin boxes (@top-center, etc) | 12 |
| 50. CSS Box Alignment Module Level 3 | 12 |
| 51. Add float: footnote to CSS3 | 12 |
| 52. Add: Webassembly Garbage Collection | 12 |
| 53. Add "outline follows border-radius" | 12 |
| 54. CSS3 Speech Module Which browsers support it? See | 11 |
| 55. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ... | 11 |
| 56. Add `WebOTP` to list of apis | 11 |
| 57. Add supported elliptical curves (HTTPS/TLS) | 11 |
| 58. Tiff image format | 11 |
| 59. Add "HDR AVIF" image support | 11 |
| 60. Add caniuse data for Contact Picker API | 11 |
| 61. Add the `<search>` element | 11 |
| 62. Add WebRTC insertable streams | 11 |
| 63. Include `baseline-shift` CSS property | 10 |
| 64. caniuse : Constructable Stylesheet | 10 |
| 65. @font-face descriptors to override font metrics | 10 |
| 66. webcl? | 10 |
| 67. HTTP2 Server Push | 10 |
| 68. Add CSS Custom Highlight API | 10 |
| 69. queueMicrotask support | 10 |
| 70. Badging API | 10 |
| 71. Support CSS two-value display syntax | 10 |
| 72. one-time-code | 10 |
| 73. Add Report-To API (Intervention Reports) | 10 |
| 74. Track Intl.Segmenter | 10 |
| 75. Add Web Share Level 2 | 10 |
| 76. SVG viewport-fill property support | 10 |
| 77. Cookies: max-age | 9 |
| 78. Add CSS Gap Decorations | 9 |
| 79. Add CSS animation timing function spring() | 9 |
| 80. Quota Management API | 9 |
| 81. SVG viewport-fill-opacity property support | 9 |
| 82. Add SVG `use` with external reference | 9 |
| 83. List support for the window.fetch keepalive option | 9 |
| 84. Add the HTML focusgroup attribute | 9 |
| 85. -ms-overflow-style | 9 |
| 86. Add support for @starting-style rule | 8 |
| 87. Add support for Private State Tokens | 8 |
| 88. User-Agent Client Hints (UA-CH) | 8 |
| 89. Add CSS property -- `object-view-box` | 8 |
| 90. WebGL extensions | 8 |
| 91. Add text-wrap: pretty | 8 |
| 92. input[autocomplete] (values besides on/off) | 8 |
| 93. Add Versatile Video Coding (VVC) aka. H.266 … somewhen | 8 |
| 94. Please add "isInputPending()" | 7 |
| 95. Add 'require-sri-for' CSP Directive | 7 |
| 96. Add Fetch upload streaming | 7 |
| 97. Feature request: Matroska (MKV) video container | 7 |
| 98. Add `WebSocketStream` API | 7 |
| 99. Add Web Neural Network (WebNN) | 7 |
| 100. Alt-Svc header browser support info: consider adding | 7 |
| 101. Audio codec - xHE-AAC / USAC | 7 |
| 102. Add Incremental Font Transfer | 7 |
| 103. New feature request: x25519 Key Exchange | 7 |
| 104. autocorrect for input fileds | 7 |
| 105. Secure Cookie flag | 7 |
| 106. Feature: Origin-bound one-time codes delivered via SMS | 7 |
| 107. Support for the frame-ancestors directive | 7 |
| 108. Add `multipart/x-mixed-replace` | 7 |
| 109. Add Invoker Commands, `command` & `commandfor` (previously: Invokers, `invoketarget` & `invokeaction`) | 7 |
| 110. HTML Modules | 7 |
| 111. RFC7692 Compression Extensions for WebSocket | 7 |
| 112. This regards adding support for the navigator.userAgentData | 7 |
| 113. Add support for iterator helpers | 7 |
| 114. Add Declarative Web Push | 7 |
| 115. Observable | 6 |
| 116. Add System Colors item | 6 |
| 117. Add `enterkeyhint` attribute ("Enter Key Hint") | 6 |
| 118. CanIUse OpenSearch | 6 |
| 119. Accelerated Shape Detection in Images | 6 |
| 120. Embedded color profiles in JPEG images. | 6 |
| 121. ECMAScript 2024 (ES15) summary page and feature support list | 6 |
| 122. Module Worker support | 6 |
| 123. Add CSS Values and Units Module Level 4 Mathematical Expressions | 6 |
| 124. Add the `:modal` pseudo-class | 6 |
| 125. WebCrypto Key Discovery | 6 |
| 126. Add "page based counters" | 6 |
| 127. MediaStream Image Capture | 6 |
| 128. Add "CICP in images" | 6 |
| 129. Cannot see |ImageCapture| entry in the web interface. | 6 |
| 130. Geofencing API | 6 |
| 131. Add tracking for "Ultra HDR JPG" | 6 |
| 132. Flag storage that is not available under private mode | 6 |
| 133. Support Experimental "ES Pipe Operator (|>)" | 6 |
| 134. Window Placement API | 6 |
| 135. JS Self-Profiling API | 6 |
| 136. Add HTTP method: QUERY | 6 |
| 137. Support for MHTML | 6 |
| 138. Add Web Share Target API Level 2 | 6 |
| 139. new CSS trigonometry functions | 6 |
| 140. Support 'name' attribute on <details> ("Accordion pattern using name attribute on <details> elements") | 6 |
| 141. CSS tag {content: url()} | 6 |
| 142. USDZ file format | 6 |
| 143. Add ECC certificates | 6 |
| 144. add Accessibility Object Model | 6 |
| 145. viewport meta tag | 6 |
| 146. Playback of videos with alpha channel | 6 |
| 147. Add Memory64 browser feature | 6 |
| 148. Input Events Level 1 and 2 | 5 |
| 149. CSS Shaders - | 5 |
| 150. Graphite font support | 5 |
| 151. Add IPFS (Interplanetary File System) protocol to Caniuse | 5 |
| 152. Add font-palette-values | 5 |
| 153. Bundled HTTP Exchanges | 5 |
| 154. Add support tables for document.documentElement.clientWidth | 5 |
| 155. Adding Khronos gITF 2.0 for 3D models | 5 |
| 156. Support individual CSP rules | 5 |
| 157. CSS Round Display | 5 |
| 158. add window-inactive pseudo-class | 5 |
| 159. Add supports() queries on @import | 5 |
| 160. Can I Use m4a? | 5 |
| 161. webp2 support | 5 |
| 162. Feature: A Well-Known URL for Changing Passwords | 5 |
| 163. Add the `<model>` element | 5 |
| 164. roundRect | 5 |
| 165. Global Privacy Control (GPC) "Sec-GPC" HTTP header | 5 |
| 166. Payment Handler API | 5 |
| 167. Input type=email with "multiple" attribute | 5 |
| 168. Add Local Font Access API | 5 |
| 169. Track the status of the JavaScript Promise Integration specification | 5 |
| 170. audio / video autoplay attribute and play function | 5 |
| 171. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ... | 5 |
| 172. New top level domains (TLD) | 5 |
| 173. Tracking various WebAuthn features | 5 |
| 174. Add Intl.DurationFormat | 5 |
| 175. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only | 5 |
| 176. HTTP Strict Transport Security Preload | 5 |
| 177. Please track the various HTTP Set-Cookie options supported by browsers | 5 |
| 178. Add raw sockets API | 5 |
| 179. webkit-calendar-picker-indicator | 5 |
| 180. Add gRPC support | 5 |
| 181. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler | 5 |
| 182. Scroll State container queries | 4 |
| 183. Arithmetic coded JPEG support | 4 |
| 184. CSS image() functional notation (e.g. for background-images etc). See | 4 |
| 185. [CSS Level 4 pseudo-class] :user-error | 4 |
| 186. Support for Geometry Property (SVG 2.0) `r` in CSS | 4 |
| 187. Add support for passwordrules input attribute | 4 |
| 188. Web locks | 4 |
| 189. Add Cookie Store API | 4 |
| 190. Add meta "format-detection" | 4 |
| 191. filename*=UTF-8''... | 4 |
| 192. Add Intl.DisplayNames | 4 |
| 193. Safe Assignment Operator | 4 |
| 194. SameParty cookie attribute | 4 |
| 195. For printing support for the size:landscape option to tell the browser what page orientation we want... | 4 |
| 196. add @mixin and @function | 4 |
| 197. Let's add a page for box alignment | 4 |
| 198. Support SVG width/height = auto | 4 |
| 199. Cache-Control | 4 |
| 200. Support for Digital Goods API | 4 |
| 201. Snap Events: scrollsnapchange and scrollsnapchanging | 4 |
| 202. X25519Kyber768 Hybrid Post-Quantum Key Exchange for HTTPS | 4 |
| 203. Browser support for Running elements | 4 |
| 204. Accessibility of in-browser PDF Viewer | 4 |
| 205. SVG sprites with <symbol> and <use> | 4 |
| 206. Support information for horizontal-viewport-segments and vertical-viewport-segments | 4 |
| 207. Add server-timing as a trailer | 4 |
| 208. Add Media Session API Coverage Information | 4 |
| 209. documentMode | 4 |
| 210. File Handling API | 4 |
| 211. Support aria-hidden html property | 4 |
| 212. Support the W3 Web Annotation standard (W3C Recommendation) | 4 |
| 213. ::-webkit-file-upload-button | 4 |
| 214. The !important css thing. It's very !important ;). | 4 |
| 215. CSS multicol data is mixed with fragmentation | 3 |
| 216. place-items shorthand for justify and align | 3 |
| 217. add captureVisibleTab | 3 |
| 218. Public class properties | 3 |
| 219. Missing feature: Clipboard API supported mimetypes | 3 |
| 220. Support new global attribute: writingsuggestions | 3 |
| 221. getEventListeners not listed | 3 |
| 222. Private Click Measurement (PCM) | 3 |
| 223. Support for CSS3 background-repeat-x and background-repeat-y properties | 3 |
| 224. justify-content: space-around | 3 |
| 225. No information about the `unselectable` HTML attribute. | 3 |
| 226. Add `dynamic-range` media query | 3 |
| 227. Add information for the webcal and webcals protocols for subscribing to iCalendars | 3 |
| 228. dns.resolve | 3 |
| 229. New browser feature: rest/spread in object literals | 3 |
| 230. Video media in image contexts | 3 |
| 231. display: table-caption? | 3 |
| 232. Web bundles | 3 |
| 233. Content-Security-Policy: script-nonce | 3 |
| 234. add iframe.csp | 3 |
| 235. CSS view-timeline supports | 3 |
| 236. video codecs | 3 |
| 237. Add support for requestSubmit | 3 |
| 238. IPv6 support in web browsers | 3 |
| 239. Add 'animated GIF as favicon'? | 3 |
| 240. Add CMYK Color Space | 3 |
| 241. Add support for addHitRegion | 3 |
| 242. Add HTMLPermissionElement | 3 |
| 243. ECMAscript - static properties | 3 |
| 244. Show ANSI escape code for console.log. | 3 |
| 245. Add CSS scroll-target-group | 3 |
| 246. Track `<input type="color" alpha>` support | 3 |
| 247. CSS @function rule | 3 |
| 248. Add Wide Color Gamut in 2D Canvas | 3 |
| 249. Add "Window Controls Overlay" | 3 |
| 250. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d... | 3 |
| 251. Add Web Install API | 3 |
| 252. Add "Responsive Video" aka. `media` attribute for `<source>` element in `<video>` | 3 |
| 253. Add support for HTTP header X-Permitted-Cross-Domain-Policies | 3 |
| 254. support destructuring assignment as separate es feature | 2 |
| 255. track support for the media query feature -ms-high-contrast | 2 |
| 256. Track adoption of DOMFrameContentLoaded event | 2 |
| 257. CMAF | 2 |
| 258. Add `::target-text` (from CSS Pseudo-Elements Module Level 4) | 2 |
| 259. Add VisualViewport.segments support data | 2 |
| 260. `from-image` as initial value of `image-orientation` | 2 |
| 261. WebAuthN: "prf" extension support | 2 |
| 262. DNS-over-HTTPS (DoH) | 2 |
| 263. CSS word-break: 'auto-phrase' and 'manual' | 2 |
| 264. Add `@supports at-rule` | 2 |
| 265. Add `:local-link` pseudo selector | 2 |
| 266. Add `letter-spacing` support for percentage values | 2 |
| 267. Add pdf parameters support | 2 |
| 268. permessage-deflate | 2 |
| 269. add secure payment confirmation (W3C) | 2 |
| 270. Support for IAMF file format | 2 |
| 271. Add RFC 8879 TLS Certificate Compression | 2 |
| 272. Add `clipboardchange` event | 2 |
| 273. Add WebCGM | 2 |
| 274. Add inner-spin-button and outer-spin-button | 2 |
| 275. CSS value random() | 2 |
| 276. Add backdrop-filter: url() | 2 |
| 277. Add Change Array by Copy methods | 2 |
| 278. Add block-step-size property for CSS | 2 |
| 279. Metadata name: HandheldFriendly | 2 |
| 280. Please add more detailed WebRTC features | 2 |
| 281. Metadata name: MobileOptimized | 2 |
| 282. Support for hrefTranslate | 2 |
| 283. WebXR Hand Input Module - Level 1 | 2 |
| 284. Show which browsers have a native CSV viewer | 2 |
| 285. stroke-linejoin support | 2 |
| 286. add RTSP and RTSP 2.0 (Real Time Streaming Protocol) | 2 |
| 287. Add Container Units aka. Container Relative Lengths | 2 |
| 288. Add auto-expand `<details>` for find-in-page and fragment navigations | 2 |
| 289. Add Date.prototype.toTemporalInstant() | 2 |
| 290. Add TPG image file format | 2 |
| 291. Add chrome.webrequests | 2 |
| 292. A new page for Grid track animation should be added | 2 |
| 293. Add "Scheduled Task API" | 2 |
| 294. text-space-collapse | 2 |
| 295. Tooltip display on focus | 2 |
| 296. Information about WavPack audio format | 2 |
| 297. Add Geolocation Sensor | 2 |
| 298. Add Local Network Access to caniuse | 2 |
| 299. add "unicode property escapes" | 2 |
| 300. Support KV Storage build-in module | 2 |
| 301. Request: nav-up, nav-down, nav-left, nav-right css3 properties | 2 |
| 302. Input type=range with "multiple" attribute | 2 |
| 303. Storage Access API | 2 |
| 304. SVG image auto height | 2 |
| 305. Support of sms: and mms: in mobile browsers is not clear | 2 |
| 306. Drag and Drop API - ghost image with customizable opacity | 2 |
| 307. srcset/sizes attribute / picture element support in SVG | 2 |
| 308. String.prototype.split() with a regex with grouping ( parentheses ). | 2 |
| 309. HTTP Trailers | 2 |
| 310. Animating SVG paths using CSS | 2 |
| 311. onerror event on iframe | 2 |
| 312. Add app-region? | 2 |
| 313. console.assert(boolean_expression) | 2 |
| 314. HTTP immutable responses | 2 |
| 315. x-webkit-speech | 2 |
| 316. Can I use X3D? | 2 |
| 317. Spatial Navigation support | 2 |
| 318. Device-Memory Client Hint & navigator.deviceMemory JS API | 2 |
| 319. setTimeout and setInterval callback parameters | 2 |
| 320. SVG symbols in CSS | 2 |
| 321. getFilesAndDirectories | 2 |
| 322. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format | 2 |
| 323. Add CSS4 Grid structural selectors | 2 |
| 324. Basic Authentication: AuthName directive | 2 |
| 325. SSML | 2 |
| 326. Add PNG cursor | 2 |
| 327. CSS touch-action level 2 values | 2 |
| 328. add csp lv2 violation event | 2 |
| 329. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties | 2 |
| 330. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio... | 2 |
| 331. Wildcard "*" support for Access-Control-Allow-Headers/Methods | 2 |
| 332. Add Integrated Windows Authentication | 2 |
| 333. UTF-8 Dingbats | 2 |
| 334. What about showing support for various link attributes, like "subresource" or "dns-pr... | 2 |
| 335. Add information on context-stroke and context-fill | 2 |
| 336. string-set | 2 |
| 337. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image... | 2 |
| 338. <semantics> element in MathML is not found in caniuse.com | 2 |
| 339. Add the Javascript double asterisk power operator (**) to the list of supported features | 2 |
| 340. Add browser support for toggle() | 2 |
| 341. Touch Icons (apple-touch-icon) | 2 |
| 342. Loading Signed Exchanges | 2 |
| 343. SharedMemory/Atomics | 2 |
| 344. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi... | 2 |
| 345. rel="ar" support | 2 |
| 346. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro... | 2 |
| 347. Add HTTP_ORIGIN feature | 2 |
| 348. viewport-fit | 1 |
| 349. SHA2 certificates | 1 |
| 350. column combination | 1 |
| 351. Audio format: AC-3, eac3 | 1 |
| 352. 'font-size' descriptor for '@font-face' | 1 |
| 353. add CSS Extensions meant for renaming | 1 |
| 354. event.path | 1 |
| 355. request support for 'accept-charset' | 1 |
| 356. Support of webkitAudioDecodedByteCount | 1 |
| 357. X.509 Name Constraints | 1 |
| 358. Please add support data for "CSS property: clip-path: inset()". Thank you! | 1 |
| 359. Add URL.canParse() | 1 |
| 360. CSS generated images: Stripes | 1 |
| 361. Add `@font-feature-values` | 1 |
| 362. Add Range.getBoundingClientRect browser support table | 1 |
| 363. DeviceOrientation and DeviceMotion events on insecure origins | 1 |
| 364. document type | 1 |
| 365. Add `new Intl.DateTimeFormat().resolvedOptions().hour12` | 1 |
| 366. Add tracking for ASTC hdr profile | 1 |
| 367. Add box-suppress | 1 |
| 368. Audio Output Devices API: wd | 1 |
| 369. Opus: Need data for MP4 and WebM containers | 1 |
| 370. Adding Managed Media Source | 1 |
| 371. Add WebDriver BiDi | 1 |
| 372. Drag and Drop API - move constraints | 1 |
| 373. Internationalized Domain Name | 1 |
| 374. Add "Scoped Custom Element Registry" as it is now behind an experimental feature flag in Chrome | 1 |
| 375. Add Gradient Interpolation Color Spaces | 1 |
| 376. Support info for the <track> element | 1 |
| 377. Content-Security-Policy: navigate-to | 1 |
| 378. Add a footnote regarding HTMLAudioElement | 1 |
| 379. Add variable units | 1 |
| 380. CSS property media-controls-panel | 1 |
| 381. 32-bit HDR PNG | 1 |
| 382. script tag onerror attribute | 1 |
| 383. CSS Inline Layout | 1 |
| 384. CSS Values 3 `src()` function | 1 |
| 385. longdesc attribute support | 1 |
| 386. webauthn: Related Origin Requests (ROR) | 1 |
| 387. Add Inference capabilities from browser.trial.ml | 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. create @Media Types | 1 |
| 392. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table? | 1 |
| 393. Add inherited value references | 1 |
| 394. Add Structured Error Data for Filtered DNS | 1 |
| 395. import.sync() | 1 |
| 396. MediaStream Recording ( | 1 |
| 397. accesskey attribute on non-focusable elements (should cause a click element to fire | 1 |
| 398. <meta name="apple-mobile-web-app-capable" content="yes" /> | 1 |
| 399. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.) | 1 |
| 400. Add `<mapviewer>` (inline MapML) | 1 |
| 401. hidden=until-found added to Safari | 1 |
| 402. Textarea wrap attribute (off, soft, hard, virtual, physical) | 1 |
| 403. Add WebMCP …maybe eventually | 1 |
| 404. Add CSS Typed Arithmetic | 1 |
| 405. Add Web Smart Card API | 1 |
| 406. Suggestion | Safe Operator: ?= | 1 |
| 407. Add caret-animation | 1 |
| 408. Please add TLS certificate algorithms to caniuse | 1 |
| 409. Add windows-theme media query selector | 1 |
| 410. mediacapture-region | 1 |
| 411. prefers-reduced-transparency CSS Media Query | 1 |
| 412. browserconfig.xml support info | 1 |
| 413. Add Object.prototype.watch method | 1 |
| 414. show support for namespacing; for example <svg: namespace | 1 |
| 415. Add Web Translation API …maybe eventually | 1 |
| 416. Support for CSS Color Module Level 5 | 1 |
| 417. Add "Named function expressions" | 1 |
| 418. Add Web Preferences API …maybe eventually | 1 |
| 419. The xml:space attribute | 1 |
| 420. window.localMediaStream is not listed | 1 |
| 421. Feature request: tc39 Explicit Resource Management | 1 |
| 422. udp: add feature | 1 |
| 423. Add CSS `@property` | 1 |
| 424. Add Isolated Web Apps (IWAs) | 1 |
| 425. Support for VSR (Video Super Resolution) on Nvidia and Intel GPUs | 1 |
| 426. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)? | 1 |
| 427. add onstorage | 1 |
| 428. Feature request: Token Binding Protocol | 1 |
| 429. Add standalone MathML files in MML format | 1 |
| 430. Add Device Posture API (formerly Screen Fold API) | 1 |
| 431. IETF RFCs | 1 |
| 432. `border-color: currentColor;` | 1 |
| 433. Add WICG/compression-dictionary-transport | 1 |
| 434. WebSerial | 1 |
| 435. Add layout-instability support | 1 |
| 436. Open search autodiscovery | 1 |
| 437. Add "specifying a color profile: the `@color-profile` at-rule" | 1 |
| 438. FLoC support | 1 |
| 439. OfflineAudioContext | 1 |
| 440. Add `::-webkit-details-marker` | 1 |
| 441. Add: "color" and "background-color" CSS on <option> elements | 1 |
| 442. Add URL Protocol Handler Registration for PWAs | 1 |
| 443. Add page for relative path in HTTP Location | 1 |
| 444. requestPostAnimationFrame browser support? | 1 |
| 445. https mixed mode | 1 |
| 446. date.toLocaleString support tracking plz? | 1 |
| 447. E4X: ECMAScript for XML | 1 |
| 448. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`) | 1 |
| 449. missing HTTP TRACE method | 1 |
| 450. DownloadURL | 1 |
| 451. Add entry for DTLS 1.3 | 1 |
| 452. Report Retry-After header support | 1 |
| 453. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered) | 1 |
| 454. Suggested addition: navigator.cpuClass | 1 |
| 455. Can you please add the Stack trace API that exists in V8 | 1 |
| 456. Support for Service Worker Life Cycle Events | 1 |
| 457. stroke-linecap support | 1 |
| 458. Add a matrix entyre for opentype-with-cff2 | 1 |
| 459. Add H2 ORIGIN frame support | 1 |
| 460. nested calc() and var() | 1 |
| 461. Add compatibility for FormData | 1 |
| 462. bidi algorithm (for right-to-left Unicode characters) | 1 |
| 463. Use of es6 import statements in workers | 1 |
| 464. [Feature Policy: sub-feature] Sandbox features | 1 |
| 465. iframe disallowdocumentaccess property | 1 |
| 466. InsertKey Behaviour Overwrite/Normal Mode | 1 |
| 467. x-webkit-airplay | 1 |
| 468. Add support for svg fill-rule | 1 |
| 469. Add Support for MPEG-4 Part 2 SP/ASP | 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. Add desynchronized (low latency canvas contexts) | 1 |
| 473. Clean up css-touch-action | 1 |
| 474. Request: IPv6 proxy functions (myIpAddressEx and friends) | 1 |
| 475. Support for calc() in polygon and other shapes | 1 |
| 476. Streams API: transferable streams | 1 |
| 477. performance.measureMemory() | 1 |
| 478. CSS3 new text-transform keywords | 1 |
| 479. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft | 1 |
| 480. baseline-middle | 1 |
| 481. The event handler window.onscroll is missing | 1 |
| 482. auto Picture-in-Picture | 1 |
| 483. How to show support for font-variation-settings within @font-face? | 1 |
| 484. Refresh | 1 |
| 485. <object>.contentWindow Support | 1 |
| 486. supported-color-schemes & prefers-color-scheme | 1 |
| 487. please add the onsearch event | 1 |
| 488. step property of input field with type datetime-local and time | 1 |
| 489. Add support information for font metric override descriptors | 1 |
| 490. window.watchMedia() | 1 |
| 491. feature request: video/MP2T | 1 |
| 492. SVG 2: inline-size property for text | 1 |
| 493. Add `blocking=render` | 1 |
| 494. Add `font-variant-emoji` | 1 |
| 495. Add `target="_new"` | 1 |
| 496. Add CSS Scroll Snap Module Level 2 | 1 |
| 497. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually | 1 |
| 498. Add Background Blur API | 1 |
| 499. Add support for the HTTP header X-Download-Options | 1 |
| 500. Add Web MIDI 2.0 …maybe eventually | 1 |
| 501. SHA1 certificates | 1 |
| 502. aria-labelledby | 1 |
| 503. Missing `StorageQuota` support | 1 |
| 504. import reflection for WASM | 1 |
| 505. Add IndexedDB 3.0 | 1 |
| 506. [Suggestion] display: fullscreen | 1 |
| 507. What is the browser support for the newly proposed "page-orientation" property? | 1 |
| 508. Add Payment Request API 1.1 | 1 |
| 509. Add tech() function support (in @font-face src) | 1 |
| 510. Add XSL to caniuse | 1 |
| 511. reflected-xss missing | 1 |
| 512. Add `PWA file handlers` | 1 |
| 513. add mouse event positions event.offsetX and event.offsetY | 1 |
| 514. Web monetization | 1 |
| 515. Suggestion: @font-face src OpenType collection support | 1 |
| 516. CAA DNS record | 1 |
| 517. Add selection.getComposedRange() feature check | 1 |
| 518. add micropub | 1 |
| 519. Add Capture Handle | 1 |
| 520. Character-based alignment in a table column using text-align | 1 |
| 521. Chained selectors | 1 |
| 522. Missing computed property names | 1 |
| 523. Add MathML Core | 1 |
| 524. Add: Tracking Preference Expression APIs | 1 |
| 525. Add compatibility data for QuickTime video format | 1 |
| 526. Suggestion: support for margin-collapse? | 1 |
| 527. Add Notification Triggers | 1 |
| 528. HTTP Content-encoding: LZFSE | 1 |
| 529. Support data for Unicode flag on HTML pattern attribute | 1 |
| 530. Support for Unicode and spaces in URL | 1 |
| 531. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols" | 1 |
| 532. Javascript pseudoprotocol | 1 |
| 533. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates | 1 |
| 534. Add High Resolution Time Level 3 | 1 |
| 535. Add "Controlling Font Display Per Font-Family via @font-feature-values" | 1 |
| 536. MPNG | 1 |
| 537. URLSearchParams.prototype.sort | 1 |
| 538. Support HTJ2K | 1 |
| 539. Add optional type syntax for JavaScript …maybe eventually | 1 |
| 540. Add `Notification.prototype.showTrigger️` | 1 |
| 541. Add CSS Toggles …maybe eventually | 1 |
| 542. add aria-required to caniuse, if not already there | 1 |
| 543. sec-ch-prefers headers | 1 |
| 544. Sec-Ch-wow64 | 1 |
| 545. aria-current | 1 |
| 546. Add css-timing | 1 |
| 547. Add support for CSS3 move-to property | 1 |