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.

1. HTTP content-encoding: zstd31
2. Add lab() and lch() from CSS Color Module Level 428
3. Add support table for CSP 3.0 compliance28
4. Suggestion: MediaRecorder.isTypeSupported supported types/codecs28
5. Add HTTP 103 Early Hints25
6. css/svg property dominant-baseline24
7. window.onerror - / - particularly mobile browser support24
8. Can I use Reporting API23
9. Add WebDriver22
10. text-wrap21
11. Add ES7/2016 SIMD21
12. Add CSS Color Module Level 5 (color-adjust(), color-mix(), color-contrast())21
13. Entries for href values including `tel:1234567` and `sms:1234567`21
14. Hyphenation Options20
15. JavaScript: Tail Call Support information missing19
16. Track support for newly added spec: Dimensions (width/height) in <source> tags18
17. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....18
18. Priority hints API18
19. CSS3 module "Generated Content for Paged Media" and especially the target-counter function18
20. New feature: CSS Typed Object Model (CSS Typed OM)17
21. XSLT Support table17
22. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)17
23. device-cmyk css feature16
24. Support constructible stylesheets / adoptedStyleSheets16
25. WebExtensions (browser extensions)16
26. + WASM SIMD15
27. Support Intrinsic Size Attribute15
28. Add CSS Grid Layout Module Level 3 (Masonry!)15
29. Page Lifecycle API15
30. border-corner-shape15
31. Add Media Queries Ranges14
32. `content: leader('.');`14
33. Add beforeinput event13
34. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
35. Geo URI scheme13
36. I suggest support for TransferableObject types (of which there are several) 12
37. Color Fonts including SVG-in-OT fonts12
38. WebTransport12
39. text-security missing in list of features12
40. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
41. webcl?11
42. Soft hyphen: html entity &shy;11
43. Async iterators / for await of11
44. Add Report-To API (Intervention Reports)10
45. CSS Box Alignment Module Level 310
46. New feature request: OCSP must-staple10
47. queueMicrotask support10
48. @font-face descriptors to override font metrics10
49. Please add iFrame element contentWindow property9
50. Quota Management API 9
51. CSS3 Speech Module Which browsers support it? See9
52. Add float: footnote to CSS39
53. List support for the window.fetch keepalive option9
54. Add WebRTC insertable streams9
55. Support for SVG's "shape-rendering" CSS property. 9
56. Add Web Share Target API9
57. Cookies: max-age9
58. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
59. Add caniuse data for Contact Picker API9
60. Include `baseline-shift` CSS property9
61. ElementInternals/form-associated custom element9
62. Support CSS two-value display syntax8
63. SVG viewport-fill property support8
64. SVG viewport-fill-opacity property support8
65. HTTP2 Server Push8
66. Add CSS animation timing function spring()8
67. Add supported elliptical curves (HTTPS/TLS)8
68. Show Support for JSON Modules8
69. Badging API8
70. webM alpha transparency8
71. Add Webassembly Threads / Threaded Webassembly8
72. Track Intl.Segmenter8
73. caniuse : Constructable Stylesheet8
74. Add Web Share Level 28
75. Add support for the __Host- and __Secure-7
76. 'imagesizes' & 'imagesrcset' for <link rel="preload">7
77. RFC7692 Compression Extensions for WebSocket7
78. This regards adding support for the navigator.userAgentData7
79. User-Agent Client Hints (UA-CH)7
80. Secure Cookie flag7
81. Feature: Origin-bound one-time codes delivered via SMS7
82. WebGL extensions7
83. Alt-Svc header browser support info: consider adding7
84. autocorrect for input fileds7
85. HTMLVideoElement.requestVideoFrameCallback()7
86. one-time-code7
87. Add SVG `use` with external reference7
88. Please add "isInputPending()"7
89. Support for the frame-ancestors directive7
90. input[autocomplete] (values besides on/off) 7
91. Module Worker support6
92. Add 'require-sri-for' CSP Directive6
93. MediaStream Image Capture6
94. Add `accent-color` property (CSS UI 4)6
95. New feature request: x25519 Key Exchange6
96. CSS 3 property: text-autospace and text-spacing6
97. Flag storage that is not available under private mode6
98. WebCrypto Key Discovery6
99. Add `multipart/x-mixed-replace`6
100. Cannot see |ImageCapture| entry in the web interface.6
101. Fetch Metadata Request Headers6
102. Add scroll-padding6
103. HTML Modules6
104. Add Web Share Target API Level 26
105. CSS tag {content: url()}6
106. Add `enterkeyhint` attribute ("Enter Key Hint")6
107. Geofencing API6
108. Bundled HTTP Exchanges5
109. Add font-palette-values5
110. HTTP Strict Transport Security Preload5
111. Add `text-underline-offset` property5
112. Embedded color profiles in JPEG images.5
113. Observable5
114. audio / video autoplay attribute and play function5
115. Please track the various HTTP Set-Cookie options supported by browsers5
116. Add Declarative Shadow DOM5
117. Add support tables for document.documentElement.clientWidth5
118. Feature: A Well-Known URL for Changing Passwords5
119. Support individual CSP rules5
120. Track support for navigator.getInstalledRelatedApps()5
121. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
122. Add isSecureContext feature to list5
123. Tiff image format5
124. Accelerated Shape Detection in Images5
125. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
126. Adding Khronos gITF 2.0 for 3D models5
127. -ms-overflow-style5
128. Add autocorrect, autocapitalize, autocomplete attributes5
129. Page-margin boxes (@top-center, etc)5
130. Arithmetic coded JPEG support4
131. Support the W3 Web Annotation standard (W3C Recommendation)4
132. Web locks4
133. Add Versatile Video Coding (VVC) … somewhen4
134. Support aria-hidden html property4
135. Add Eyedropper API to caniuse4
136. Screen Capture4
137. [WebCryptoAPI] randomUUID4
138. Add support for Trust Tokens API4
139. Support for Digital Goods API4
140. New top level domains (TLD)4
141. new CSS trigonometry functions4
142. Payment Handler API4
143. Add Cookie Store API4
144. Add raw sockets API4
145. Input Events Level 1 and 24
146. Add previousSibling and previousElementSibling4
147. Audio codec - xHE-AAC / USAC4
148. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler4
149. Add `WebOTP` to list of apis4
150. ::-webkit-file-upload-button4
151. USDZ file format4
152. CSS Round Display4
153. [CSS Level 4 pseudo-class] :user-error4
154. CSS image() functional notation (e.g. for background-images etc). See 4
155. Cache-Control 4
156. allowtransparency4
157. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
158. For printing support for the size:landscape option to tell the browser what page orientation we want...4
159. CSS Shaders - 4
160. Add data for link rel="alternate"3
161. Support for MHTML3
162. <virtual-scroller>3
163. place-items shorthand for justify and align3
164. Add meta "format-detection"3
165. Add Intl.DisplayNames3
166. Network Service Discovery3
167. display: table-caption?3
168. Private Click Measurement (PCM)3
169. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
170. Add Media Session API Coverage Information3
171. Grid-auto-flow3
172. CSS multicol data is mixed with fragmentation3
173. Public class properties3
174. Add <data> element3
175. Adding Silverlight usage stats3
176. add window-inactive pseudo-class3
177. Keyboard Lock3
178. The !important css thing. It's very !important ;).3
180. Add `dynamic-range` media query3
181. ActiveX3
182. SVG sprites with <symbol> and <use>3
183. Add support for requestSubmit3
184. Add ECC certificates3
185. Support SVG width/height = auto3
186. documentMode3
187. Add support for addHitRegion3
188. New browser feature: rest/spread in object literals3
189. getTotalLength()3
190. ECMAscript - static properties3
191. Support KV Storage build-in module2
192. Support of sms: and mms: in mobile browsers is not clear2
193. filename*=UTF-8''...2
194. JS Self-Profiling API2
195. support destructuring assignment as separate es feature2
196. SSML2
197. Add PNG cursor2
198. Can I use X3D?2
199. Input type=email with "multiple" attribute2
200. add csp lv2 violation event2
201. Loading Signed Exchanges2
202. Basic Authentication: AuthName directive2
203. Why not suggests 'setPrototypeOf '2
204. Storage Access API2
205. add iframe.csp2
206. SVG image auto height2
207. dns.resolve2
208. for ... of support data2
209. add captureVisibleTab2
210. Support for Canvas isPointInPath()2
211. Add System Colors item2
212. Add other values of `user-select` property2
213. justify-content: space-around2
214. x-webkit-speech2
215. UTF-8 Dingbats2
216. add "unicode property escapes"2
217. Add information on context-stroke and context-fill2
218. <input type=file>: ability to modify the selected files via JS2
219. Touch Icons (apple-touch-icon)2
220. EventTarget Constructor2
221. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
222. Add information about CSS pseudo selector :defined2
223. Add Integrated Windows Authentication2
224. Add Geolocation Sensor2
225. getEventListeners not listed2
226. Spatial Navigation support2
227. Add Sanitizer API2
228. Please add ES3 support2
229. Track adoption of DOMFrameContentLoaded event2
230. add Accessibility Object Model2
231. Add
232. <semantics> element in MathML is not found in caniuse.com2
233. Add 'animated GIF as favicon'?2
234. track support for the media query feature -ms-high-contrast2
235. CanIUse OpenSearch2
236. Show ANSI escape code for console.log.2
237. onerror event on iframe2
238. .getPointAtLength()2
239. Add transitionstart event2
240. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
241. Add browser support for toggle()2
242. setTimeout and setInterval callback parameters2
243. Device-Memory Client Hint & navigator.deviceMemory JS API2
244. HTTP immutable responses2
245. Support for CSS3 background-repeat-x and background-repeat-y properties2
246. String.prototype.split() with a regex with grouping ( parentheses ).2
247. srcset/sizes attribute / picture element support in SVG2
248. CSS touch-action level 2 values2
249. Add new SVG filter effects2
250. InputDeviceCapabilities API2
251. Content-Security-Policy: script-nonce2
252. External import maps2
253. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
254. Add `q` (quarter-millimeters) length unit2
255. Web bundles2
256. SharedMemory/Atomics2
257. Add CSS @when/@else2
258. Content-Security-Policy: block-all-mixed-content2
259. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
260. MediaDevices.selectAudioOutput2
261. What about showing support for various link attributes, like "subresource" or "dns-pr...2
262. Add information for the webcal and webcals protocols for subscribing to iCalendars2
263. Graphite font support2
264. [DOM API] `signal` option on EventTarget.protoype.addEventListener2
265. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 2
266. WebXR Hand Input Module - Level 12
267. CSS page property (for printing)2
268. getFilesAndDirectories2
269. HTTP Trailers2
270. console.assert(boolean_expression)2
271. line-height support and the differences in rendering between webkit&trident and other engines.1
272. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
273. Add desynchronized (low latency canvas contexts)1
274. Please add more detailed WebRTC features1
275. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)1
276. @top-left @bottom-center ? can you test for compatibility1
277. stroke-linecap support1
278. stroke-linejoin support1
279. HTMLInputElement API: select support1
280. Window Placement API1
281. MediaTrackConstraints1
282. Can you please add the Stack trace API that exists in V81
283. Add Support for MPEG-4 Part 2 SP/ASP1
284. Add CSS property `caret-shape` and shorthand `caret`1
285. grid-row-gap and grid-column-gap1
286. Show which browsers have a native CSV viewer1
287. auto Picture-in-Picture1
288. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...1
289. voice-* properties aren't listed1
290. nested calc() and var()1
291. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
292. Web intents/Web Activities 1
293. Add Text.wholeText property1
294. Support for hrefTranslate1
295. Add ShadowRealm API1
296. create @Media Types1
297. feature request: video/MP2T1
298. roundRect1
299. Add Container Units aka. Container Relative Lengths1
300. Metadata name: MobileOptimized1
301. Can I Use m4a?1
302. Request: IPv6 proxy functions (myIpAddressEx and friends)1
303. Input type=range with "multiple" attribute1
304. Metadata name: HandheldFriendly1
305. No information about the `unselectable` HTML attribute.1
306. Clean up css-touch-action1
307. Document Policies1
308. Can I use windowtext.1
309. script tag onerror attribute1
310. Add support information for font metric override descriptors1
311. Add the Javascript double asterisk power operator (**) to the list of supported features1
312. Add CSS Properties and Values API1
313. Add URL Protocol Handler Registration for PWAs1
314. Add: "color" and "background-color" CSS on <option> elements1
315. Add `::-webkit-details-marker`1
316. MediaStream Recording (1
317. CMAF1
318. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
319. Adding contain-intrinsic-size (suggestion)1
320. accesskey attribute on non-focusable elements (should cause a click element to fire1
321. Tracking various WebAuthn features1
322. Add support for svg fill-rule1
323. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
324. FLoC support1
325. webkit-calendar-picker-indicator1
326. <meta name="apple-mobile-web-app-capable" content="yes" />1
327. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
328. Streams API: transferable streams1
329. bidi algorithm (for right-to-left Unicode characters)1
330. iframe disallowdocumentaccess property1
331. performance.measureMemory()1
332. `from-image` as initial value of `image-orientation`1
333. column-break-after atm only via: -webkit-column-break-after1
334. SameParty cookie attribute1
335. x-webkit-airplay1
336. Add Compression Stream API1
337. Textarea wrap attribute (off, soft, hard, virtual, physical)1
338. Add entry for DTLS 1.31
339. Intl.NumberFormat - notation (scientific, engineering, etc)1
340. rel="ar" support1
341. missing HTTP TRACE method1
342. Add "specifying a color profile: the `@color-profile` at-rule"1
343. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
344. Add CSS module script/CSS modules1
345. E4X: ECMAScript for XML1
346. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
347. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
348. device-pixel-content-box for ResizeObserver1
349. Add layout-instability support1
350. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
351. Browser support for RTP streams?1
352. requestPostAnimationFrame browser support?1
353. Missing feature: Clipboard API supported mimetypes1
354. Information about WavPack audio format1
355. InsertKey Behaviour Overwrite/Normal Mode1
356. What is the browser support for the newly proposed "page-orientation" property?1
357. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
358. Support for calc() in polygon and other shapes1
359. Audio Output Devices API: wd1
360. Add app-region?1
361. URLSearchParams.prototype.sort1
362. SVG symbols in CSS1
363. Add HTTP_ORIGIN feature1
364. document type1
365. Add support for mediacapture-output API's sinkID1
366. Add Range.getBoundingClientRect browser support table1
367. Support XMLDocument1
368. audio / video .canPlayType(MIMEtype)1
369. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
370. DeviceOrientation and DeviceMotion events on insecure origins1
371. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
372. Video media in image contexts1
373. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
374. attachEvent event handler missing from CanIUse1
375. Drag and Drop API - ghost image with customizable opacity1
376. Drag and Drop API - move constraints1
377. Add support for document.queryCommandState1
378. Animating SVG paths using CSS1
379. Support info for the <track> element1
380. Chained selectors1
381. Javascript pseudoprotocol1
382. Add a footnote regarding HTMLAudioElement1
383. aria-label1
384. window.event1
385. JS add oncuechange1
386. [HTTP Header] Accept-CH-Lifetime1
387. add CSS Extensions meant for renaming1
388. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
389. Add box-suppress1
390. CanvasRenderingContext2D.ellipse()1
391. Support for Unicode and spaces in URL1
392. Missing `StorageQuota` support1
393. event.path1
394. SHA2 certificates1
395. Missing a check for msConvertURL() on DragEvent1
396. Support for nested calc expressions in CSS values1
397. Add "Named function expressions"1
398. Open search autodiscovery1
399. add mouse event positions event.offsetX and event.offsetY1
400. reflected-xss missing1
401. column combination1
402. Internationalized Domain Name1
403. Add XSL to caniuse1
404. Add support for CSS3 move-to property1
405. CaretPosition missing1
406. add "document.contentType"1
407. add aria-required to caniuse, if not already there1
408. string-set1
409. aria-labelledby1
410. SHA1 certificates1
411. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
412. Add support for the HTTP header X-Download-Options1
413. add micropub1
414. support data suggestion: DOM event constructors ?1
415. [Suggestion] display: fullscreen1
416. min/max-device-width/height1
417. Add High Resolution Time Level 31
418. Add: Task Scheduler API Specification 1
419. Add css-timing 1
420. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
421. aria-current1
422. request support for 'accept-charset'1
423. add for...of loops1
424. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
425. DownloadURL1
426. Support for RegExp Named Capture Groups1
427. Suggested addition: navigator.cpuClass1
428. online/offline can also be used as events and are not covered by (only boolean property is covered)1
429. Report Retry-After header support1
430. Keyboard Map API1
431. date.toLocaleString support tracking plz?1
432. Add windows-theme media query selector1
433. https mixed mode1
434. Add page for relative path in HTTP Location1
435. background-composite1
436. OfflineAudioContext1
437. add onstorage1
438. Feature request: Token Binding Protocol1
439. IETF RFCs1
440. VTTRegion is not found in caniuse1
441. Use of es6 import statements in workers1
442. CSS3 new text-transform keywords1
443. step property of input field with type datetime-local and time1
444. please add the onsearch event1
445. Add support for CSS clip property1
446. supported-color-schemes & prefers-color-scheme1
447. <object>.contentWindow Support1
448. Support Data Suggestion: Clients API1
449. CSS Inline Layout1
450. Refresh1
451. How to show support for font-variation-settings within @font-face?1
452. The event handler window.onscroll is missing1
453. longdesc attribute support1
454. baseline-middle1
455. Support for Service Worker Life Cycle Events1
456. Add checking for DataTransfer1
457. Support data for Unicode flag on HTML pattern attribute1
458. Edge and IE don't support IndexedDB in web workers1
459. HTTP Content-encoding: LZFSE1
460. IPv6 support in web browsers1
461. add ime-mode1
462. Add CSS4 Grid structural selectors1
463. Suggestion: support for margin-collapse?1
464. Add `onpagehide` support data1
465. Add: Tracking Preference Expression APIs1
466. Add KeyboardEvent.repeat compatibility info1
467. Missing computed property names1
468. browserconfig.xml support info1
469. [HTTP Header] Cross-Origin-Opener-Policy1
470. Node.contains1
471. Character-based alignment in a table column using text-align1
472. Add support information for SVG's getIntersectionList1
473. Please list support for event.eventPhase1
474. Please add support for getTimezoneOffset()1
475. user-modify1
476. [Feature Policy: sub-feature] Sandbox features1
477. Add method1
478. support for HTMLTableElement.createTBody1
479. window.watchMedia()1
480. show support for namespacing; for example <svg: namespace 1
481. Add compatibility for FormData1
482. The xml:space attribute1
483. Add H2 ORIGIN frame support1
484. Cannot find cancelBubble1
485. ie behavior1
486. window.localMediaStream is not listed1
487. Add a matrix entyre for opentype-with-cff21
488. Add Scoped Styles aka. CSS Scoping1