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: zstd45
2. Add HTTP 103 Early Hints38
3. Add WebCodecs API37
4. css/svg property dominant-baseline35
5. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)34
6. Add support table for CSP 3.0 compliance32
7. Suggestion: MediaRecorder.isTypeSupported supported types/codecs29
8. Entries for href values including `tel:1234567` and `sms:1234567`26
9. + WASM SIMD25
10. Track support for newly added spec: Dimensions (width/height) in <source> tags25
11. window.onerror - / - particularly mobile browser support24
12. Add WebDriver23
13. Can I use Reporting API23
14. Priority hints API23
15. text-wrap23
16. Hyphenation Options23
17. CSS3 module "Generated Content for Paged Media" and especially the target-counter function22
18. Add ES7/2016 SIMD21
19. Add customizable select element, currently `<selectmenu>`20
20. WebExtensions (browser extensions)19
21. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....19
22. New feature: CSS Typed Object Model (CSS Typed OM)19
23. JavaScript: Tail Call Support information missing19
24. XSLT Support table19
25. Show Support for JSON Modules19
26. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)19
27. Support constructible stylesheets / adoptedStyleSheets18
28. Add CSS Grid Layout Module Level 3 (Masonry!)17
29. border-corner-shape16
30. device-cmyk css feature16
31. Page Lifecycle API16
32. Support Intrinsic Size Attribute15
33. `content: leader('.');`14
34. input-security13
35. I suggest support for TransferableObject types (of which there are several) 13
36. Geo URI scheme13
37. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
38. ElementInternals/form-associated custom element13
39. Async iterators / for await of12
40. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
41. Color Fonts including SVG-in-OT fonts12
42. Add WebRTC insertable streams11
43. Add float: footnote to CSS311
44. New feature request: OCSP must-staple11
45. webcl?11
46. Soft hyphen: html entity &shy;11
47. Add Webassembly Threads / Threaded Webassembly11
48. CSS3 Speech Module Which browsers support it? See10
49. caniuse : Constructable Stylesheet10
50. Add Web Share Level 210
51. one-time-code10
52. Add Report-To API (Intervention Reports)10
53. Track Intl.Segmenter10
54. CSS Box Alignment Module Level 310
55. queueMicrotask support10
56. Support for SVG's "shape-rendering" CSS property. 10
57. @font-face descriptors to override font metrics10
58. Add CSS animation timing function spring()9
59. Add Web Share Target API9
60. Cookies: max-age9
61. Support CSS two-value display syntax9
62. Add oklab() and oklch()9
63. List support for the window.fetch keepalive option9
64. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
65. webM alpha transparency9
66. Include `baseline-shift` CSS property9
67. Quota Management API 9
68. Add caniuse data for Contact Picker API9
69. Add supported elliptical curves (HTTPS/TLS)8
70. Badging API8
71. SVG viewport-fill-opacity property support8
72. SVG viewport-fill property support8
73. Add `accent-color` property (CSS UI 4)8
74. WebGL extensions8
75. HTTP2 Server Push8
76. HTMLVideoElement.requestVideoFrameCallback()8
77. Add CSS property `caret-shape` and shorthand `caret`8
78. Support for the frame-ancestors directive7
79. Please add "isInputPending()"7
80. Tiff image format7
81. input[autocomplete] (values besides on/off) 7
82. Add `WebOTP` to list of apis7
83. Feature: Origin-bound one-time codes delivered via SMS7
84. HTML Modules7
85. This regards adding support for the navigator.userAgentData7
86. Secure Cookie flag7
87. Alt-Svc header browser support info: consider adding7
88. autocorrect for input fileds7
89. Add SVG `use` with external reference7
90. RFC7692 Compression Extensions for WebSocket7
91. Add ShadowRealm API7
92. User-Agent Client Hints (UA-CH)7
93. Flag storage that is not available under private mode6
94. Add Web Share Target API Level 26
95. WebCrypto Key Discovery6
96. Accelerated Shape Detection in Images6
97. CSS 3 property: text-autospace and text-spacing6
98. Add CSS module script/CSS modules6
99. Observable6
100. MediaStream Image Capture6
101. Geofencing API6
102. Module Worker support6
103. Add `enterkeyhint` attribute ("Enter Key Hint")6
104. Cannot see |ImageCapture| entry in the web interface.6
105. CSS tag {content: url()}6
106. Add autocorrect, autocapitalize, autocomplete attributes6
107. Page-margin boxes (@top-center, etc)6
108. New feature request: x25519 Key Exchange6
109. Add CSS Values and Units Module Level 4 Mathematical Expressions6
110. Add support for Trust Tokens API6
111. Add 'require-sri-for' CSP Directive6
112. Add `multipart/x-mixed-replace`6
113. new CSS trigonometry functions5
114. Add Eyedropper API to caniuse5
115. USDZ file format5
116. Add "outline follows border-radius"5
117. roundRect5
118. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
119. [WebCryptoAPI] randomUUID5
120. External import maps5
121. Support individual CSP rules5
122. Add ECC certificates5
123. Audio codec - xHE-AAC / USAC5
124. Embedded color profiles in JPEG images.5
125. Please track the various HTTP Set-Cookie options supported by browsers5
126. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
127. -ms-overflow-style5
128. Add the Quite OK Image Format (QOI) …maybe eventually5
129. Adding Khronos gITF 2.0 for 3D models5
130. Add System Colors item5
131. HTTP Strict Transport Security Preload5
132. Add Versatile Video Coding (VVC) … somewhen5
133. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
134. Bundled HTTP Exchanges5
135. Feature: A Well-Known URL for Changing Passwords5
136. Add font-palette-values5
137. Add CSS Custom Highlight API5
138. audio / video autoplay attribute and play function5
139. Add support tables for document.documentElement.clientWidth5
140. Window Placement API4
141. Add raw sockets API4
142. Support the W3 Web Annotation standard (W3C Recommendation)4
143. ::-webkit-file-upload-button4
144. CSS Round Display4
145. New top level domains (TLD)4
146. allowtransparency4
147. CSS Shaders - 4
148. [CSS Level 4 pseudo-class] :user-error4
149. CSS image() functional notation (e.g. for background-images etc). See 4
150. Add the `<model>` element4
151. Web locks4
152. Add supports() queries on @import4
153. Payment Handler API4
154. Cache-Control 4
155. Support for Digital Goods API4
156. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
157. Screen Capture4
158. Support aria-hidden html property4
159. For printing support for the size:landscape option to tell the browser what page orientation we want...4
160. Add Cookie Store API4
161. Input Events Level 1 and 24
162. Add the `:modal` pseudo-class4
163. add Accessibility Object Model4
164. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
165. The !important css thing. It's very !important ;).4
166. Arithmetic coded JPEG support4
167. Support for MHTML4
168. JS Self-Profiling API4
169. getEventListeners not listed3
170. Add Media Session API Coverage Information3
171. place-items shorthand for justify and align3
172. CSS multicol data is mixed with fragmentation3
173. Add <data> element3
174. add window-inactive pseudo-class3
175. Add information for the webcal and webcals protocols for subscribing to iCalendars3
176. ECMAscript - static properties3
177. Accessibility of in-browser PDF Viewer3
178. Support SVG width/height = auto3
180. Add meta "format-detection"3
181. ActiveX3
182. New browser feature: rest/spread in object literals3
183. CanIUse OpenSearch3
184. Can I Use m4a?3
185. Add "fetchpriority"3
186. Add Intl.DisplayNames3
187. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
188. Add support for requestSubmit3
189. Add `dynamic-range` media query3
190. Public class properties3
191. Private Click Measurement (PCM)3
192. Tracking various WebAuthn features3
193. Add support for DNS RRs, like HTTPS and SVCB3
194. documentMode3
195. Add support for addHitRegion3
196. SVG sprites with <symbol> and <use>3
197. getTotalLength()3
198. display: table-caption?3
199. <semantics> element in MathML is not found in caniuse.com2
200. Show ANSI escape code for console.log.2
201. Add Geolocation Sensor2
202. Add Integrated Windows Authentication2
203. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
204. Add Sanitizer API2
205. SSML2
206. Add information on context-stroke and context-fill2
207. webkit-calendar-picker-indicator2
208. EventTarget Constructor2
209. support destructuring assignment as separate es feature2
210. dns.resolve2
211. Loading Signed Exchanges2
212. Support KV Storage build-in module2
213. Graphite font support2
214. rel="ar" support2
215. Storage Access API2
216. WebXR Hand Input Module - Level 12
217. track support for the media query feature -ms-high-contrast2
218. Spatial Navigation support2
219. MediaDevices.selectAudioOutput2
220. Missing feature: Clipboard API supported mimetypes2
221. add "unicode property escapes"2
222. justify-content: space-around2
223. Please add ES3 support2
224. Add PNG cursor2
225. Add TPG image file format2
226. CSS touch-action level 2 values2
227. Add "page based counters"2
228. Content-Security-Policy: script-nonce2
229. UTF-8 Dingbats2
230. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
231. SharedMemory/Atomics2
232. A new page for Grid track animation should be added2
233. Add 'animated GIF as favicon'?2
234. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
235. Container Queries should be broken out into three pages2
236. Input type=email with "multiple" attribute2
237. Add Wide Color Gamut in 2D Canvas2
238. Add "Window Controls Overlay"2
239. Support of sms: and mms: in mobile browsers is not clear2
240. console.assert(boolean_expression)2
241. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
242. filename*=UTF-8''...2
243. Add other values of `user-select` property2
244. webp2 support2
245. add csp lv2 violation event2
246. HTTP Trailers2
247. Animating SVG paths using CSS2
248. Add the HTML focusgroup attribute2
249. onerror event on iframe2
250. Add Local Font Access API 2
251. Can I use X3D?2
252. Add gRPC support2
253. File Handling API2
254. Basic Authentication: AuthName directive2
255. Add chrome.webrequests2
256. Web bundles2
257. Add Scoped Styles aka. CSS Scoping2
258. x-webkit-speech2
259. Touch Icons (apple-touch-icon)2
260. Add browser support for toggle()2
261. SameParty cookie attribute2
262. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
263. getFilesAndDirectories2
264. srcset/sizes attribute / picture element support in SVG2
265. What about showing support for various link attributes, like "subresource" or "dns-pr...2
266. setTimeout and setInterval callback parameters2
267. Device-Memory Client Hint & navigator.deviceMemory JS API2
268. stroke-linejoin support2
269. CSS page property (for printing)2
270. HTTP immutable responses2
271. Tooltip display on focus2
272. Support for CSS3 background-repeat-x and background-repeat-y properties2
273. add captureVisibleTab2
274. SVG image auto height2
275. add iframe.csp2
276. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
277. Track adoption of DOMFrameContentLoaded event2
278. String.prototype.split() with a regex with grouping ( parentheses ).2
279. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
280. Add `blocking=render`1
281. Add IndexedDB 3.01
282. sec-ch-prefers headers1
283. iframe disallowdocumentaccess property1
284. import reflection for WASM1
285. Add CSS Toggles …maybe eventually1
286. Sec-Ch-wow641
287. Add `font-variant-emoji`1
288. Adding contain-intrinsic-size (suggestion)1
289. Streams API: transferable streams1
290. Support information for horizontal-viewport-segments and vertical-viewport-segments1
291. Add Fetch upload streaming1
292. Add Capture Handle1
293. Add the Pop Up API aka. the `popup` attribute plus more1
294. Add Web MIDI 2.0 …maybe eventually1
295. text-space-collapse1
296. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
297. Add CSS Scroll Snap Module Level 21
298. Add `target="_new"`1
299. Add "Scheduled Task API"1
300. Add VisualViewport.segments support data1
301. Metadata name: MobileOptimized1
302. Add `Notification.prototype​.showTrigger️`1
303. Add: "color" and "background-color" CSS on <option> elements1
304. nested calc() and var()1
305. FLoC support1
306. voice-* properties aren't listed1
307. Please add more detailed WebRTC features1
308. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)1
309. Add `::-webkit-details-marker`1
310. stroke-linecap support1
311. Add URL Protocol Handler Registration for PWAs1
312. feature request: video/MP2T1
313. Can you please add the Stack trace API that exists in V81
314. Show which browsers have a native CSV viewer1
315. Add entry for DTLS 1.31
316. requestPostAnimationFrame browser support?1
317. missing HTTP TRACE method1
318. E4X: ECMAScript for XML1
319. Add "specifying a color profile: the `@color-profile` at-rule"1
320. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
321. bidi algorithm (for right-to-left Unicode characters)1
322. Add Container Units aka. Container Relative Lengths1
323. Add optional type syntax for JavaScript …maybe eventually1
324. device-pixel-content-box for ResizeObserver1
325. performance.measureMemory()1
326. TLS Encrypted Client Hello (ECH)1
327. Support HTJ2K1
328. `from-image` as initial value of `image-orientation`1
329. auto Picture-in-Picture1
330. MPNG1
331. Metadata name: HandheldFriendly1
332. Support for hrefTranslate1
333. Add server-timing as a trailer1
334. Add MathML Core1
335. Add IPFS (Interplanetary File System) protocol to Caniuse1
336. No information about the `unselectable` HTML attribute.1
337. Add Date.prototype.toTemporalInstant()1
338. Add Web Neural Network (WebNN)1
339. Add support information for font metric override descriptors1
340. Add CMYK Color Space1
341. Add Notification Triggers1
342. Add compatibility data for QuickTime video format1
343. Can I use windowtext.1
344. Suggestion: support for margin-collapse?1
345. CMAF1
346. attachEvent event handler missing from CanIUse1
347. add CSS Extensions meant for renaming1
348. Add a footnote regarding HTMLAudioElement1
349. Support info for the <track> element1
350. Drag and Drop API - move constraints1
351. Drag and Drop API - ghost image with customizable opacity1
352. Audio Output Devices API: wd1
353. DeviceOrientation and DeviceMotion events on insecure origins1
354. audio / video .canPlayType(MIMEtype)1
355. Add Range.getBoundingClientRect browser support table1
356. Add support for mediacapture-output API's sinkID1
357. document type1
358. Add HTTP_ORIGIN feature1
359. Add box-suppress1
360. string-set1
361. Add CSS4 Grid structural selectors1
362. Internationalized Domain Name1
363. column combination1
364. SHA2 certificates1
365. event.path1
366. Add "Named function expressions"1
367. Open search autodiscovery1
368. add mouse event positions event.offsetX and event.offsetY1
369. reflected-xss missing1
370. Add XSL to caniuse1
371. Add support for CSS3 move-to property1
372. Missing `StorageQuota` support1
373. aria-labelledby1
374. SHA1 certificates1
375. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
376. request support for 'accept-charset'1
377. browserconfig.xml support info1
378. add micropub1
379. create @Media Types1
380. line-height support and the differences in rendering between webkit&trident and other engines.1
381. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
382. Browser support for RTP streams?1
383. Textarea wrap attribute (off, soft, hard, virtual, physical)1
384. Web intents/Web Activities 1
385. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
386. <meta name="apple-mobile-web-app-capable" content="yes" />1
387. accesskey attribute on non-focusable elements (should cause a click element to fire1
388. MediaStream Recording (1
389. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
390. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
391. script tag onerror attribute1
392. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
393. Input type=range with "multiple" attribute1
394. Edge and IE don't support IndexedDB in web workers1
395. longdesc attribute support1
396. CSS Inline Layout1
397. IETF RFCs1
398. Feature request: Token Binding Protocol1
399. add onstorage1
400. background-composite1
401. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
402. Add windows-theme media query selector1
403. window.localMediaStream is not listed1
404. ie behavior1
405. The xml:space attribute1
406. show support for namespacing; for example <svg: namespace 1
407. Add method1
408. Please add support for getTimezoneOffset()1
409. Add support for the HTTP header X-Download-Options1
410. support data suggestion: DOM event constructors ?1
411. Add support for svg fill-rule1
412. The event handler window.onscroll is missing1
413. date.toLocaleString support tracking plz?1
414. https mixed mode1
415. Add page for relative path in HTTP Location1
416. OfflineAudioContext1
417. DownloadURL1
418. Use of es6 import statements in workers1
419. CSS3 new text-transform keywords1
420. step property of input field with type datetime-local and time1
421. please add the onsearch event1
422. supported-color-schemes & prefers-color-scheme1
423. <object>.contentWindow Support1
424. Refresh1
425. How to show support for font-variation-settings within @font-face?1
426. baseline-middle1
427. online/offline can also be used as events and are not covered by (only boolean property is covered)1
428. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
429. Support for calc() in polygon and other shapes1
430. Request: IPv6 proxy functions (myIpAddressEx and friends)1
431. Clean up css-touch-action1
432. Add desynchronized (low latency canvas contexts)1
433. @top-left @bottom-center ? can you test for compatibility1
434. Add Support for MPEG-4 Part 2 SP/ASP1
435. grid-row-gap and grid-column-gap1
436. Add the Javascript double asterisk power operator (**) to the list of supported features1
437. x-webkit-airplay1
438. What is the browser support for the newly proposed "page-orientation" property?1
439. Add layout-instability support1
440. Information about WavPack audio format1
441. InsertKey Behaviour Overwrite/Normal Mode1
442. Report Retry-After header support1
443. Suggested addition: navigator.cpuClass1
444. [Suggestion] display: fullscreen1
445. Javascript pseudoprotocol1
446. Add High Resolution Time Level 31
447. Add: Task Scheduler API Specification 1
448. Add css-timing 1
449. aria-current1
450. add aria-required to caniuse, if not already there1
451. Add app-region?1
452. URLSearchParams.prototype.sort1
453. SVG symbols in CSS1
454. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
455. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
456. Video media in image contexts1
457. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
458. Chained selectors1
459. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
460. Support for RegExp Named Capture Groups1
461. Support for Unicode and spaces in URL1
462. Support data for Unicode flag on HTML pattern attribute1
463. HTTP Content-encoding: LZFSE1
464. IPv6 support in web browsers1
465. add ime-mode1
466. Add: Tracking Preference Expression APIs1
467. Missing computed property names1
468. Character-based alignment in a table column using text-align1
469. [Feature Policy: sub-feature] Sandbox features1
470. window.watchMedia()1
471. Add compatibility for FormData1
472. Add H2 ORIGIN frame support1
473. Add a matrix entyre for opentype-with-cff21
474. Support for Service Worker Life Cycle Events1
475. Add `WebSocketStream` API1