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. HTTP content-encoding: zstd34
2. Suggestion: MediaRecorder.isTypeSupported supported types/codecs29
3. Add support table for CSP 3.0 compliance29
4. Add HTTP 103 Early Hints29
5. Add WebCodecs API29
6. css/svg property dominant-baseline27
7. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)25
8. window.onerror - / - particularly mobile browser support24
9. Add WebDriver23
10. Can I use Reporting API23
11. Entries for href values including `tel:1234567` and `sms:1234567`22
12. Hyphenation Options22
13. Add ES7/2016 SIMD21
14. text-wrap21
15. Track support for newly added spec: Dimensions (width/height) in <source> tags20
16. WebExtensions (browser extensions)19
17. Priority hints API19
18. CSS3 module "Generated Content for Paged Media" and especially the target-counter function19
19. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....19
20. + WASM SIMD19
21. WebTransport19
22. XSLT Support table19
23. JavaScript: Tail Call Support information missing19
24. New feature: CSS Typed Object Model (CSS Typed OM)17
25. Support constructible stylesheets / adoptedStyleSheets17
26. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)17
27. Page Lifecycle API16
28. device-cmyk css feature16
29. Add CSS Grid Layout Module Level 3 (Masonry!)16
30. border-corner-shape15
31. Support Intrinsic Size Attribute15
32. `content: leader('.');`14
33. Add Media Queries Ranges14
34. Geo URI scheme13
35. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
36. Add beforeinput event13
37. I suggest support for TransferableObject types (of which there are several) 12
38. input-security12
39. Color Fonts including SVG-in-OT fonts12
40. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
41. webcl?11
42. Async iterators / for await of11
43. Soft hyphen: html entity &shy;11
44. New feature request: OCSP must-staple10
45. Add Report-To API (Intervention Reports)10
46. CSS Box Alignment Module Level 310
47. queueMicrotask support10
48. Add float: footnote to CSS310
49. Support for SVG's "shape-rendering" CSS property. 10
50. Add WebRTC insertable streams10
51. @font-face descriptors to override font metrics10
52. Track Intl.Segmenter10
53. ElementInternals/form-associated custom element10
54. List support for the window.fetch keepalive option9
55. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
56. Add Web Share Target API9
57. Add caniuse data for Contact Picker API9
58. Quota Management API 9
59. Add Web Share Level 29
60. CSS3 Speech Module Which browsers support it? See9
61. Cookies: max-age9
62. Include `baseline-shift` CSS property9
63. Add Webassembly Threads / Threaded Webassembly9
64. webM alpha transparency9
65. Show Support for JSON Modules9
66. HTMLVideoElement.requestVideoFrameCallback()8
67. SVG viewport-fill-opacity property support8
68. SVG viewport-fill property support8
69. Badging API8
70. caniuse : Constructable Stylesheet8
71. Support CSS two-value display syntax8
72. one-time-code8
73. Add supported elliptical curves (HTTPS/TLS)8
74. HTTP2 Server Push8
75. Add CSS animation timing function spring()8
76. Add SVG `use` with external reference7
77. input[autocomplete] (values besides on/off) 7
78. Secure Cookie flag7
79. Alt-Svc header browser support info: consider adding7
80. Add `accent-color` property (CSS UI 4)7
81. This regards adding support for the navigator.userAgentData7
82. WebGL extensions7
83. Support for the frame-ancestors directive7
84. Please add "isInputPending()"7
85. RFC7692 Compression Extensions for WebSocket7
86. Tiff image format7
87. User-Agent Client Hints (UA-CH)7
88. autocorrect for input fileds7
89. Feature: Origin-bound one-time codes delivered via SMS7
90. 'imagesizes' & 'imagesrcset' for <link rel="preload">7
91. Module Worker support6
92. Geofencing API6
93. Add Web Share Target API Level 26
94. New feature request: x25519 Key Exchange6
95. Flag storage that is not available under private mode6
96. CSS tag {content: url()}6
97. HTML Modules6
98. Cannot see |ImageCapture| entry in the web interface.6
99. CSS 3 property: text-autospace and text-spacing6
100. Fetch Metadata Request Headers6
101. Add 'require-sri-for' CSP Directive6
102. Add Declarative Shadow DOM6
103. Add `enterkeyhint` attribute ("Enter Key Hint")6
104. Add scroll-padding6
105. WebCrypto Key Discovery6
106. Add `multipart/x-mixed-replace`6
107. MediaStream Image Capture6
108. Page-margin boxes (@top-center, etc)6
109. Observable5
110. Add Eyedropper API to caniuse5
111. Adding Khronos gITF 2.0 for 3D models5
112. Bundled HTTP Exchanges5
113. USDZ file format5
114. Add `text-underline-offset` property5
115. Add `WebOTP` to list of apis5
116. Add ECC certificates5
117. Feature: A Well-Known URL for Changing Passwords5
118. Please track the various HTTP Set-Cookie options supported by browsers5
119. Support individual CSP rules5
120. Add font-palette-values5
121. [WebCryptoAPI] randomUUID5
122. Add support tables for document.documentElement.clientWidth5
123. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
124. Track support for navigator.getInstalledRelatedApps()5
125. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
126. Accelerated Shape Detection in Images5
127. -ms-overflow-style5
128. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
129. Add autocorrect, autocapitalize, autocomplete attributes5
130. HTTP Strict Transport Security Preload5
131. audio / video autoplay attribute and play function5
132. Embedded color profiles in JPEG images.5
133. ::-webkit-file-upload-button4
134. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
135. Add Versatile Video Coding (VVC) … somewhen4
136. Add support for Trust Tokens API4
137. CSS Round Display4
138. Support the W3 Web Annotation standard (W3C Recommendation)4
139. Input Events Level 1 and 24
140. Support for Digital Goods API4
141. New top level domains (TLD)4
142. Arithmetic coded JPEG support4
143. Add previousSibling and previousElementSibling4
144. Add raw sockets API4
145. Support aria-hidden html property4
146. For printing support for the size:landscape option to tell the browser what page orientation we want...4
147. Payment Handler API4
148. JS Self-Profiling API4
149. new CSS trigonometry functions4
150. Web locks4
151. Audio codec - xHE-AAC / USAC4
152. Add Cookie Store API4
153. [CSS Level 4 pseudo-class] :user-error4
154. CSS image() functional notation (e.g. for background-images etc). See 4
155. CSS Shaders - 4
156. Screen Capture4
157. allowtransparency4
158. Cache-Control 4
159. Keyboard Lock3
160. Add <data> element3
161. Public class properties3
162. Network Service Discovery3
163. Grid-auto-flow3
164. Add `dynamic-range` media query3
165. The !important css thing. It's very !important ;).3
166. add window-inactive pseudo-class3
167. Add CSS module script/CSS modules3
168. Add Media Session API Coverage Information3
169. getEventListeners not listed3
170. New browser feature: rest/spread in object literals3
171. Adding Silverlight usage stats3
172. CSS multicol data is mixed with fragmentation3
173. place-items shorthand for justify and align3
174. Support SVG width/height = auto3
175. add Accessibility Object Model3
176. Add System Colors item3
177. Private Click Measurement (PCM)3
178. Support for MHTML3
179. <virtual-scroller>3
180. http://www.w3.org/TR/web-alarms/3
181. Add supports() queries on @import3
182. getTotalLength()3
183. Add meta "format-detection"3
184. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
185. SVG sprites with <symbol> and <use>3
186. Add support for addHitRegion3
187. Can I Use m4a?3
188. Add COLRv13
189. ActiveX3
190. Add support for requestSubmit3
191. ECMAscript - static properties3
192. documentMode3
193. Global Privacy Control (GPC) "Sec-GPC" HTTP header3
194. display: table-caption?3
195. Add Intl.DisplayNames3
196. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
197. SSML2
198. Graphite font support2
199. Add Sanitizer API2
200. Add 'animated GIF as favicon'?2
201. Support KV Storage build-in module2
202. SharedMemory/Atomics2
203. Add Integrated Windows Authentication2
204. Add Geolocation Sensor2
205. HTTP Trailers2
206. MediaDevices.selectAudioOutput2
207. <semantics> element in MathML is not found in caniuse.com2
208. What about showing support for various link attributes, like "subresource" or "dns-pr...2
209. WebXR Hand Input Module - Level 12
210. Add "outline follows border-radius"2
211. [DOM API] `signal` option on EventTarget.protoype.addEventListener2
212. Add other values of `user-select` property2
213. track support for the media query feature -ms-high-contrast2
214. CanIUse OpenSearch2
215. Show ANSI escape code for console.log.2
216. Touch Icons (apple-touch-icon)2
217. add "unicode property escapes"2
218. console.assert(boolean_expression)2
219. support destructuring assignment as separate es feature2
220. EventTarget Constructor2
221. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
222. Please add ES3 support2
223. Add information about CSS pseudo selector :defined2
224. Add information on context-stroke and context-fill2
225. Storage Access API2
226. x-webkit-speech2
227. Track adoption of DOMFrameContentLoaded event2
228. Add "Window Controls Overlay"2
229. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
230. Spatial Navigation support2
231. filename*=UTF-8''...2
232. Add PNG cursor2
233. dns.resolve2
234. Add browser support for toggle()2
235. SameParty cookie attribute2
236. UTF-8 Dingbats2
237. getFilesAndDirectories2
238. add csp lv2 violation event2
239. Can I use X3D?2
240. External import maps2
241. Content-Security-Policy: block-all-mixed-content2
242. onerror event on iframe2
243. setTimeout and setInterval callback parameters2
244. Web bundles2
245. Device-Memory Client Hint & navigator.deviceMemory JS API2
246. srcset/sizes attribute / picture element support in SVG2
247. HTTP immutable responses2
248. Add CSS property `caret-shape` and shorthand `caret`2
249. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
250. String.prototype.split() with a regex with grouping ( parentheses ).2
251. Support for CSS3 background-repeat-x and background-repeat-y properties2
252. Loading Signed Exchanges2
253. Basic Authentication: AuthName directive2
254. CSS touch-action level 2 values2
255. Why not suggests 'setPrototypeOf '2
256. justify-content: space-around2
257. add iframe.csp2
258. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
259. SVG image auto height2
260. Content-Security-Policy: script-nonce2
261. Missing feature: Clipboard API supported mimetypes2
262. Support for Canvas isPointInPath()2
263. add captureVisibleTab2
264. Input type=email with "multiple" attribute2
265. Add ShadowRealm API2
266. Add information for the webcal and webcals protocols for subscribing to iCalendars2
267. CSS page property (for printing)2
268. Support of sms: and mms: in mobile browsers is not clear2
269. grid-row-gap and grid-column-gap1
270. rel="ar" support1
271. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
272. Adding contain-intrinsic-size (suggestion)1
273. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
274. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
275. accesskey attribute on non-focusable elements (should cause a click element to fire1
276. CMAF1
277. Information about WavPack audio format1
278. <meta name="apple-mobile-web-app-capable" content="yes" />1
279. InsertKey Behaviour Overwrite/Normal Mode1
280. Add the Javascript double asterisk power operator (**) to the list of supported features1
281. x-webkit-airplay1
282. MediaStream Recording (1
283. Add support for svg fill-rule1
284. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
285. What is the browser support for the newly proposed "page-orientation" property?1
286. Add Compression Stream API1
287. Add layout-instability support1
288. Add support for mediacapture-output API's sinkID1
289. Tracking various WebAuthn features1
290. Add Scoped Styles aka. CSS Scoping1
291. stroke-linecap support1
292. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)1
293. Please add more detailed WebRTC features1
294. voice-* properties aren't listed1
295. Window Placement API1
296. nested calc() and var()1
297. Can I use windowtext.1
298. roundRect1
299. feature request: video/MP2T1
300. line-height support and the differences in rendering between webkit&trident and other engines.1
301. Add Container Units aka. Container Relative Lengths1
302. Add MathML Core1
303. Can you please add the Stack trace API that exists in V81
304. Add compatibility data for QuickTime video format1
305. Add support for DNS RRs, like HTTPS and SVCB1
306. Add Notification Triggers1
307. Add CMYK Color Space1
308. Add Web Neural Network (WebNN)1
309. Add Wide Color Gamut in 2D Canvas1
310. Add the `<model>` element1
311. Add Date.prototype.toTemporalInstant()1
312. Add oklab() and oklch()1
313. Add font-palette1
314. Add TPG image file format1
315. Add CSS Custom Highlight API1
316. stroke-linejoin support1
317. Show which browsers have a native CSV viewer1
318. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
319. No information about the `unselectable` HTML attribute.1
320. webkit-calendar-picker-indicator1
321. Streams API: transferable streams1
322. iframe disallowdocumentaccess property1
323. performance.measureMemory()1
324. Web intents/Web Activities 1
325. `from-image` as initial value of `image-orientation`1
326. auto Picture-in-Picture1
327. Metadata name: HandheldFriendly1
328. Metadata name: MobileOptimized1
329. Support for hrefTranslate1
330. device-pixel-content-box for ResizeObserver1
331. Add support information for font metric override descriptors1
332. Add entry for DTLS 1.31
333. Textarea wrap attribute (off, soft, hard, virtual, physical)1
334. bidi algorithm (for right-to-left Unicode characters)1
335. Add `::-webkit-details-marker`1
336. Add: "color" and "background-color" CSS on <option> elements1
337. Add URL Protocol Handler Registration for PWAs1
338. requestPostAnimationFrame browser support?1
339. Browser support for RTP streams?1
340. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
341. E4X: ECMAScript for XML1
342. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
343. Add "specifying a color profile: the `@color-profile` at-rule"1
344. missing HTTP TRACE method1
345. FLoC support1
346. DownloadURL1
347. Add Support for MPEG-4 Part 2 SP/ASP1
348. Video media in image contexts1
349. Add High Resolution Time Level 31
350. Add: Task Scheduler API Specification 1
351. Add css-timing 1
352. aria-current1
353. add aria-required to caniuse, if not already there1
354. Add app-region?1
355. URLSearchParams.prototype.sort1
356. SVG symbols in CSS1
357. add CSS Extensions meant for renaming1
358. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
359. request support for 'accept-charset'1
360. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
361. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
362. support data suggestion: DOM event constructors ?1
363. Add CSS4 Grid structural selectors1
364. Add KeyboardEvent.repeat compatibility info1
365. browserconfig.xml support info1
366. Edge and IE don't support IndexedDB in web workers1
367. Chained selectors1
368. Javascript pseudoprotocol1
369. JS add oncuechange1
370. Please add support for getTimezoneOffset()1
371. [HTTP Header] Accept-CH-Lifetime1
372. Add Object.prototype.watch method1
373. show support for namespacing; for example <svg: namespace 1
374. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
375. The xml:space attribute1
376. [Suggestion] display: fullscreen1
377. add micropub1
378. Support data for Unicode flag on HTML pattern attribute1
379. event.path1
380. Add Range.getBoundingClientRect browser support table1
381. Add HTTP_ORIGIN feature1
382. Add box-suppress1
383. attachEvent event handler missing from CanIUse1
384. string-set1
385. Internationalized Domain Name1
386. column combination1
387. audio / video .canPlayType(MIMEtype)1
388. DeviceOrientation and DeviceMotion events on insecure origins1
389. SHA2 certificates1
390. Audio Output Devices API: wd1
391. Drag and Drop API - ghost image with customizable opacity1
392. Drag and Drop API - move constraints1
393. Add support for the HTTP header X-Download-Options1
394. Add "Named function expressions"1
395. Open search autodiscovery1
396. add mouse event positions event.offsetX and event.offsetY1
397. Animating SVG paths using CSS1
398. reflected-xss missing1
399. Support info for the <track> element1
400. Add a footnote regarding HTMLAudioElement1
401. Add XSL to caniuse1
402. Add support for CSS3 move-to property1
403. Missing `StorageQuota` support1
404. aria-labelledby1
405. SHA1 certificates1
406. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
407. Support for Unicode and spaces in URL1
408. HTTP Content-encoding: LZFSE1
409. script tag onerror attribute1
410. Input type=range with "multiple" attribute1
411. IETF RFCs1
412. OfflineAudioContext1
413. document type1
414. CSS Inline Layout1
415. Use of es6 import statements in workers1
416. CSS3 new text-transform keywords1
417. step property of input field with type datetime-local and time1
418. please add the onsearch event1
419. Add support for CSS clip property1
420. supported-color-schemes & prefers-color-scheme1
421. <object>.contentWindow Support1
422. longdesc attribute support1
423. Refresh1
424. https mixed mode1
425. How to show support for font-variation-settings within @font-face?1
426. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
427. The event handler window.onscroll is missing1
428. baseline-middle1
429. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
430. Support for calc() in polygon and other shapes1
431. create @Media Types1
432. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
433. Request: IPv6 proxy functions (myIpAddressEx and friends)1
434. Clean up css-touch-action1
435. Document Policies1
436. Add desynchronized (low latency canvas contexts)1
437. @top-left @bottom-center ? can you test for compatibility1
438. Add page for relative path in HTTP Location1
439. Feature request: Token Binding Protocol1
440. IPv6 support in web browsers1
441. Add compatibility for FormData1
442. add ime-mode1
443. ie behavior1
444. Suggestion: support for margin-collapse?1
445. Add `onpagehide` support data1
446. Add: Tracking Preference Expression APIs1
447. Missing computed property names1
448. window.localMediaStream is not listed1
449. [HTTP Header] Cross-Origin-Opener-Policy1
450. Character-based alignment in a table column using text-align1
451. Add support information for SVG's getIntersectionList1
452. user-modify1
453. [Feature Policy: sub-feature] Sandbox features1
454. window.watchMedia()1
455. Add H2 ORIGIN frame support1
456. date.toLocaleString support tracking plz?1
457. Add windows-theme media query selector1
458. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
459. Add a matrix entyre for opentype-with-cff21
460. Please list support for event.eventPhase1
461. background-composite1
462. VTTRegion is not found in caniuse1
463. Support for Service Worker Life Cycle Events1
464. Support for RegExp Named Capture Groups1
465. Suggested addition: navigator.cpuClass1
466. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
467. Report Retry-After header support1
468. Keyboard Map API1
469. add onstorage1
470. Add IPFS (Interplanetary File System) protocol to Caniuse1