Can I use...

Feature suggestion list

This list shows all suggested support table features based on GitHub issues. The vote count is based on total thumbs up (👍) reactions for each issue. The list is updated every hour.

SuggestionVotes
1. Add HTTP 103 Early Hints58
2. css/svg property dominant-baseline43
3. Add support for DNS RRs, like HTTPS and SVCB41
4. Suggestion: MediaRecorder.isTypeSupported supported types/codecs41
5. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)40
6. + WASM SIMD35
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 function29
10. Hyphenation Options28
11. Add WebDriver27
12. XSLT Support table26
13. [Request] Please add Web Assembly Garbage Collection (WasmGC)25
14. Native HTML Switches25
15. Can I use Reporting API25
16. Show Support for JSON Modules24
17. JavaScript: Tail Call Support information missing23
18. Add CSS property `caret-shape` and shorthand `caret`23
19. Priority hints API23
20. External import maps23
21. border-corner-shape23
22. Add CSS Grid Layout Module Level 3 (Masonry!)21
23. Add ES7/2016 SIMD21
24. New feature: CSS Typed Object Model (CSS Typed OM)21
25. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....21
26. Add ShadowRealm API20
27. device-cmyk css feature19
28. Geo URI scheme19
29. Add CSS `field-sizing` (previously `form-sizing`)19
30. Page Lifecycle API18
31. Support constructible stylesheets / adoptedStyleSheets18
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 Webassembly16
36. Support Intrinsic Size Attribute15
37. ElementInternals/form-associated custom element15
38. CSS 3 property: text-autospace and text-spacing14
39. input-security14
40. Add the Quite OK Image Format (QOI) …maybe eventually14
41. Async iterators / for await of14
42. New feature request: OCSP must-staple14
43. WebP & AVIF favicons13
44. I suggest support for TransferableObject types (of which there are several) 13
45. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more)13
46. Color Fonts including SVG-in-OT fonts13
47. Support for SVG's "shape-rendering" CSS property. 13
48. Add Web Share Target API13
49. CSS Box Alignment Module Level 312
50. Add: Webassembly Garbage Collection12
51. Page-margin boxes (@top-center, etc)12
52. Add float: footnote to CSS312
53. Add "HDR AVIF" image support11
54. Add caniuse data for Contact Picker API11
55. Add WebRTC insertable streams11
56. Tiff image format11
57. Add "outline follows border-radius"11
58. Add supported elliptical curves (HTTPS/TLS)11
59. Add `WebOTP` to list of apis11
60. Add the `<search>` element11
61. CSS3 Speech Module Which browsers support it? See11
62. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...11
63. Include `baseline-shift` CSS property10
64. HTTP2 Server Push10
65. caniuse : Constructable Stylesheet10
66. webcl?10
67. one-time-code10
68. Support CSS two-value display syntax10
69. Track Intl.Segmenter10
70. Add Web Share Level 210
71. Add CSS Custom Highlight API10
72. Badging API10
73. Add Report-To API (Intervention Reports)10
74. @font-face descriptors to override font metrics10
75. queueMicrotask support10
76. SVG viewport-fill property support10
77. Add CSS Gap Decorations9
78. Quota Management API 9
79. Add the HTML focusgroup attribute9
80. Cookies: max-age9
81. Add SVG `use` with external reference9
82. Add CSS animation timing function spring()9
83. SVG viewport-fill-opacity property support9
84. -ms-overflow-style9
85. List support for the window.fetch keepalive option9
86. Add support for Private State Tokens8
87. input[autocomplete] (values besides on/off) 8
88. Add CSS property -- `object-view-box`8
89. WebGL extensions8
90. Add support for @starting-style rule8
91. Add Versatile Video Coding (VVC) aka. H.266 … somewhen8
92. Add text-wrap: pretty8
93. User-Agent Client Hints (UA-CH)8
94. New feature request: x25519 Key Exchange7
95. Add `multipart/x-mixed-replace`7
96. Support for the frame-ancestors directive7
97. Feature: Origin-bound one-time codes delivered via SMS7
98. Add `WebSocketStream` API7
99. Add Declarative Web Push7
100. Secure Cookie flag7
101. Add Fetch upload streaming7
102. Alt-Svc header browser support info: consider adding7
103. Add Web Neural Network (WebNN)7
104. Please add "isInputPending()"7
105. HTML Modules7
106. Add Invoker Commands, `command` & `commandfor` (previously: Invokers, `invoketarget` & `invokeaction`)7
107. This regards adding support for the navigator.userAgentData7
108. RFC7692 Compression Extensions for WebSocket7
109. autocorrect for input fileds7
110. Audio codec - xHE-AAC / USAC7
111. Add support for iterator helpers7
112. Add 'require-sri-for' CSP Directive7
113. Add Incremental Font Transfer7
114. Accelerated Shape Detection in Images6
115. Window Placement API6
116. Playback of videos with alpha channel6
117. Support 'name' attribute on <details> ("Accordion pattern using name attribute on <details> elements")6
118. Feature request: Matroska (MKV) video container6
119. USDZ file format6
120. Support Experimental "ES Pipe Operator (|>)"6
121. JS Self-Profiling API6
122. MediaStream Image Capture6
123. add Accessibility Object Model6
124. Embedded color profiles in JPEG images.6
125. new CSS trigonometry functions6
126. Observable6
127. Add "CICP in images"6
128. Add tracking for "Ultra HDR JPG"6
129. Add System Colors item6
130. Add the `:modal` pseudo-class6
131. Flag storage that is not available under private mode6
132. Add Memory64 browser feature6
133. CanIUse OpenSearch6
134. WebCrypto Key Discovery6
135. Add HTTP method: QUERY6
136. viewport meta tag6
137. Support for MHTML6
138. Geofencing API6
139. Cannot see |ImageCapture| entry in the web interface.6
140. Add Web Share Target API Level 26
141. Module Worker support6
142. CSS tag {content: url()}6
143. Add "page based counters"6
144. Add CSS Values and Units Module Level 4 Mathematical Expressions6
145. Add `enterkeyhint` attribute ("Enter Key Hint")6
146. Add ECC certificates6
147. add window-inactive pseudo-class5
148. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
149. Adding Khronos gITF 2.0 for 3D models5
150. CSS Round Display5
151. Feature: A Well-Known URL for Changing Passwords5
152. Tracking various WebAuthn features5
153. Bundled HTTP Exchanges5
154. Payment Handler API5
155. Input Events Level 1 and 25
156. webkit-calendar-picker-indicator5
157. Add support tables for document.documentElement.clientWidth5
158. Add font-palette-values5
159. Please track the various HTTP Set-Cookie options supported by browsers5
160. Graphite font support5
161. Add the `<model>` element5
162. ECMAScript 2024 (ES15) summary page and feature support list5
163. CSS Shaders - 5
164. Track the status of the JavaScript Promise Integration specification5
165. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
166. Input type=email with "multiple" attribute5
167. HTTP Strict Transport Security Preload5
168. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
169. Add Intl.DurationFormat5
170. Add Local Font Access API 5
171. Add gRPC support5
172. webp2 support5
173. Add IPFS (Interplanetary File System) protocol to Caniuse5
174. Add supports() queries on @import5
175. audio / video autoplay attribute and play function5
176. Support individual CSP rules5
177. New top level domains (TLD)5
178. Add raw sockets API5
179. roundRect5
180. Global Privacy Control (GPC) "Sec-GPC" HTTP header5
181. Can I Use m4a?5
182. Support the W3 Web Annotation standard (W3C Recommendation)4
183. Cache-Control 4
184. Add support for passwordrules input attribute4
185. add @mixin and @function4
186. SVG sprites with <symbol> and <use>4
187. Scroll State container queries4
188. Arithmetic coded JPEG support4
189. ::-webkit-file-upload-button4
190. filename*=UTF-8''...4
191. The !important css thing. It's very !important ;).4
192. Let's add a page for box alignment4
193. SameParty cookie attribute4
194. Safe Assignment Operator4
195. Support for Digital Goods API4
196. Support SVG width/height = auto4
197. Web locks4
198. Support for Geometry Property (SVG 2.0) `r` in CSS4
199. Support aria-hidden html property4
200. X25519Kyber768 Hybrid Post-Quantum Key Exchange for HTTPS4
201. [CSS Level 4 pseudo-class] :user-error4
202. Add Media Session API Coverage Information4
203. Add server-timing as a trailer4
204. For printing support for the size:landscape option to tell the browser what page orientation we want...4
205. Accessibility of in-browser PDF Viewer4
206. Add Intl.DisplayNames4
207. Add Cookie Store API4
208. File Handling API4
209. Add meta "format-detection"4
210. CSS image() functional notation (e.g. for background-images etc). See 4
211. Support information for horizontal-viewport-segments and vertical-viewport-segments4
212. documentMode4
213. Snap Events: scrollsnapchange and scrollsnapchanging4
214. Private Click Measurement (PCM)3
215. New browser feature: rest/spread in object literals3
216. Track `<input type="color" alpha>` support3
217. Add CSS scroll-target-group3
218. Add HTMLPermissionElement3
219. Add "Responsive Video" aka. `media` attribute for `<source>` element in `<video>`3
220. CSS multicol data is mixed with fragmentation3
221. CSS view-timeline supports3
222. Missing feature: Clipboard API supported mimetypes3
223. Add "Window Controls Overlay"3
224. Add `dynamic-range` media query3
225. justify-content: space-around3
226. Web bundles3
227. No information about the `unselectable` HTML attribute.3
228. video codecs3
229. dns.resolve3
230. Add Wide Color Gamut in 2D Canvas3
231. Show ANSI escape code for console.log.3
232. ECMAscript - static properties3
233. Browser support for Running elements3
234. Add support for requestSubmit3
235. Support new global attribute: writingsuggestions3
236. Add CMYK Color Space3
237. CSS @function rule3
238. Public class properties3
239. Add 'animated GIF as favicon'?3
240. Video media in image contexts3
241. add captureVisibleTab3
242. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
243. place-items shorthand for justify and align3
244. add iframe.csp3
245. Support for CSS3 background-repeat-x and background-repeat-y properties3
246. IPv6 support in web browsers3
247. getEventListeners not listed3
248. display: table-caption?3
249. Add support for HTTP header X-Permitted-Cross-Domain-Policies3
250. Add support for addHitRegion3
251. Content-Security-Policy: script-nonce3
252. Add information for the webcal and webcals protocols for subscribing to iCalendars3
253. Add Change Array by Copy methods2
254. `from-image` as initial value of `image-orientation`2
255. UTF-8 Dingbats2
256. Can I use X3D?2
257. WebXR Hand Input Module - Level 12
258. Add app-region?2
259. Add auto-expand `<details>` for find-in-page and fragment navigations2
260. Device-Memory Client Hint & navigator.deviceMemory JS API2
261. setTimeout and setInterval callback parameters2
262. Support for hrefTranslate2
263. Metadata name: MobileOptimized2
264. Metadata name: HandheldFriendly2
265. onerror event on iframe2
266. SVG symbols in CSS2
267. A new page for Grid track animation should be added2
268. support destructuring assignment as separate es feature2
269. getFilesAndDirectories2
270. text-space-collapse2
271. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
272. Tooltip display on focus2
273. Drag and Drop API - ghost image with customizable opacity2
274. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format2
275. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...2
276. HTTP Trailers2
277. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
278. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
279. Add "Scheduled Task API"2
280. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
281. Basic Authentication: AuthName directive2
282. x-webkit-speech2
283. string-set2
284. Add CSS4 Grid structural selectors2
285. Add chrome.webrequests2
286. DNS-over-HTTPS (DoH)2
287. Add HTTP_ORIGIN feature2
288. SharedMemory/Atomics2
289. Add TPG image file format2
290. Add Date.prototype.toTemporalInstant()2
291. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
292. add secure payment confirmation (W3C)2
293. Add VisualViewport.segments support data2
294. Add Container Units aka. Container Relative Lengths2
295. Input type=range with "multiple" attribute2
296. CSS touch-action level 2 values2
297. Add block-step-size property for CSS2
298. srcset/sizes attribute / picture element support in SVG2
299. Please add more detailed WebRTC features2
300. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)2
301. track support for the media query feature -ms-high-contrast2
302. String.prototype.split() with a regex with grouping ( parentheses ).2
303. Show which browsers have a native CSV viewer2
304. console.assert(boolean_expression)2
305. CSS word-break: 'auto-phrase' and 'manual'2
306. Support of sms: and mms: in mobile browsers is not clear2
307. stroke-linejoin support2
308. HTTP immutable responses2
309. Animating SVG paths using CSS2
310. Add `clipboardchange` event2
311. Add Geolocation Sensor2
312. <semantics> element in MathML is not found in caniuse.com2
313. Add pdf parameters support2
314. WebAuthN: "prf" extension support2
315. Spatial Navigation support2
316. permessage-deflate2
317. Support for IAMF file format2
318. Loading Signed Exchanges2
319. Add RFC 8879 TLS Certificate Compression2
320. add "unicode property escapes"2
321. Add information on context-stroke and context-fill2
322. Add WebCGM2
323. Touch Icons (apple-touch-icon)2
324. What about showing support for various link attributes, like "subresource" or "dns-pr...2
325. Add inner-spin-button and outer-spin-button2
326. Support KV Storage build-in module2
327. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
328. Add backdrop-filter: url()2
329. Storage Access API2
330. Add browser support for toggle()2
331. Add Integrated Windows Authentication2
332. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
333. SSML2
334. add csp lv2 violation event2
335. Add PNG cursor2
336. Information about WavPack audio format2
337. Add `letter-spacing` support for percentage values2
338. Add `:local-link` pseudo selector2
339. Track adoption of DOMFrameContentLoaded event2
340. Add the Javascript double asterisk power operator (**) to the list of supported features2
341. CMAF2
342. rel="ar" support2
343. SVG image auto height2
344. Add inherited value references1
345. The xml:space attribute1
346. request support for 'accept-charset'1
347. Add Gradient Interpolation Color Spaces 1
348. import.sync()1
349. show support for namespacing; for example <svg: namespace 1
350. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
351. Add Object.prototype.watch method1
352. Add URL.canParse()1
353. Add WebDriver BiDi1
354. Add standalone MathML files in MML format1
355. Add Web Preferences API …maybe eventually1
356. Add Device Posture API (formerly Screen Fold API)1
357. <meta name="apple-mobile-web-app-capable" content="yes" />1
358. browserconfig.xml support info1
359. Add WICG/compression-dictionary-transport1
360. Please add support data for "CSS property: clip-path: inset()". Thank you!1
361. Add selection.getComposedRange() feature check1
362. Add Isolated Web Apps (IWAs)1
363. Support info for the <track> element1
364. Add `PWA file handlers`1
365. Add a footnote regarding HTMLAudioElement1
366. Web monetization1
367. hidden=until-found added to Safari1
368. Suggestion: @font-face src OpenType collection support1
369. CAA DNS record1
370. SVG 2: inline-size property for text1
371. Add `new Intl.DateTimeFormat().resolvedOptions().hour12`1
372. Support for VSR (Video Super Resolution) on Nvidia and Intel GPUs1
373. Add `<mapviewer>` (inline MapML)1
374. WebSerial1
375. Add `@supports at-rule`1
376. CSS value random()1
377. add CSS Extensions meant for renaming1
378. Textarea wrap attribute (off, soft, hard, virtual, physical)1
379. script tag onerror attribute1
380. accesskey attribute on non-focusable elements (should cause a click element to fire1
381. Add `::search-text` (& `::search-text:current`)1
382. Add tracking for ASTC hdr profile1
383. viewport-fit1
384. Add Web Translation API …maybe eventually1
385. CSS Values 3 `src()` function1
386. `border-color: currentColor;`1
387. MediaStream Recording (1
388. 'font-size' descriptor for '@font-face'1
389. Audio format: AC-3, eac31
390. X.509 Name Constraints1
391. longdesc attribute support1
392. Suggestion | Safe Operator: ?=1
393. Support for CSS Color Module Level 51
394. 32-bit HDR PNG1
395. Please add TLS certificate algorithms to caniuse1
396. mediacapture-region1
397. prefers-reduced-transparency CSS Media Query1
398. Add Structured Error Data for Filtered DNS1
399. create @Media Types1
400. Add caret-animation1
401. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
402. Support of webkitAudioDecodedByteCount1
403. CSS generated images: Stripes1
404. CSS property media-controls-panel1
405. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
406. Add variable units1
407. udp: add feature1
408. Add support for CRL1
409. window.localMediaStream is not listed1
410. Request support data for bevelled="true" attribute in MathML1
411. Add `@font-feature-values`1
412. Opus: Need data for MP4 and WebM containers1
413. Add windows-theme media query selector1
414. Add "Scoped Custom Element Registry" as it is now behind an experimental feature flag in Chrome1
415. Adding Managed Media Source1
416. add onstorage1
417. Add CSS `@property`1
418. Add Inference capabilities from browser.trial.ml1
419. Feature request: Token Binding Protocol1
420. Content-Security-Policy: navigate-to1
421. webauthn: Related Origin Requests (ROR)1
422. IETF RFCs1
423. CSS Inline Layout1
424. Feature request: tc39 Explicit Resource Management1
425. Internationalized Domain Name1
426. Add tech() function support (in @font-face src)1
427. Add support for svg fill-rule1
428. Suggestion: support for margin-collapse?1
429. HTTP Content-encoding: LZFSE1
430. Add Support for MPEG-4 Part 2 SP/ASP1
431. Support data for Unicode flag on HTML pattern attribute1
432. Support for Unicode and spaces in URL1
433. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
434. x-webkit-airplay1
435. What is the browser support for the newly proposed "page-orientation" property?1
436. Add layout-instability support1
437. InsertKey Behaviour Overwrite/Normal Mode1
438. Javascript pseudoprotocol1
439. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
440. Add: Tracking Preference Expression APIs1
441. Adding contain-intrinsic-size (suggestion)1
442. Chained selectors1
443. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
444. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
445. Streams API: transferable streams1
446. iframe disallowdocumentaccess property1
447. performance.measureMemory()1
448. auto Picture-in-Picture1
449. URLSearchParams.prototype.sort1
450. Add support information for font metric override descriptors1
451. bidi algorithm (for right-to-left Unicode characters)1
452. FLoC support1
453. Add desynchronized (low latency canvas contexts)1
454. Clean up css-touch-action1
455. aria-current1
456. Suggested addition: navigator.cpuClass1
457. Add page for relative path in HTTP Location1
458. DownloadURL1
459. https mixed mode1
460. date.toLocaleString support tracking plz?1
461. Use of es6 import statements in workers1
462. CSS3 new text-transform keywords1
463. step property of input field with type datetime-local and time1
464. please add the onsearch event1
465. supported-color-schemes & prefers-color-scheme1
466. Report Retry-After header support1
467. <object>.contentWindow Support1
468. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
469. Support for Service Worker Life Cycle Events1
470. Missing computed property names1
471. Refresh1
472. How to show support for font-variation-settings within @font-face?1
473. Add a matrix entyre for opentype-with-cff21
474. The event handler window.onscroll is missing1
475. Add H2 ORIGIN frame support1
476. Add compatibility for FormData1
477. baseline-middle1
478. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
479. Support for calc() in polygon and other shapes1
480. window.watchMedia()1
481. [Feature Policy: sub-feature] Sandbox features1
482. Character-based alignment in a table column using text-align1
483. add aria-required to caniuse, if not already there1
484. Add `::-webkit-details-marker`1
485. Add Payment Request API 1.11
486. Add Range.getBoundingClientRect browser support table1
487. MPNG1
488. column combination1
489. OfflineAudioContext1
490. Support HTJ2K1
491. Add optional type syntax for JavaScript …maybe eventually1
492. Add `Notification.prototype​.showTrigger️`1
493. Add box-suppress1
494. Add CSS Toggles …maybe eventually1
495. sec-ch-prefers headers1
496. Sec-Ch-wow641
497. document type1
498. Add Capture Handle1
499. event.path1
500. DeviceOrientation and DeviceMotion events on insecure origins1
501. Add `font-variant-emoji`1
502. Add `target="_new"`1
503. Add CSS Scroll Snap Module Level 21
504. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
505. Add Background Blur API1
506. Add Web MIDI 2.0 …maybe eventually1
507. Audio Output Devices API: wd1
508. Drag and Drop API - move constraints1
509. import reflection for WASM1
510. Add `blocking=render`1
511. Add IndexedDB 3.01
512. SHA2 certificates1
513. Add "Named function expressions"1
514. Add: "color" and "background-color" CSS on <option> elements1
515. add micropub1
516. Add URL Protocol Handler Registration for PWAs1
517. Add css-timing 1
518. requestPostAnimationFrame browser support?1
519. Add High Resolution Time Level 31
520. [Suggestion] display: fullscreen1
521. E4X: ECMAScript for XML1
522. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
523. Add "specifying a color profile: the `@color-profile` at-rule"1
524. missing HTTP TRACE method1
525. Add entry for DTLS 1.31
526. Can you please add the Stack trace API that exists in V81
527. stroke-linecap support1
528. nested calc() and var()1
529. Open search autodiscovery1
530. Add support for the HTTP header X-Download-Options1
531. feature request: video/MP2T1
532. SHA1 certificates1
533. Add MathML Core1
534. aria-labelledby1
535. Add compatibility data for QuickTime video format1
536. Missing `StorageQuota` support1
537. Add Notification Triggers1
538. Add support for CSS3 move-to property1
539. Add XSL to caniuse1
540. reflected-xss missing1
541. add mouse event positions event.offsetX and event.offsetY1
542. Request: IPv6 proxy functions (myIpAddressEx and friends)1