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: zstd45
2. WebTransport39
3. Add HTTP 103 Early Hints37
4. Add WebCodecs API37
5. css/svg property dominant-baseline35
6. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)34
7. Add support table for CSP 3.0 compliance32
8. Suggestion: MediaRecorder.isTypeSupported supported types/codecs29
9. Entries for href values including `tel:1234567` and `sms:1234567`26
10. Track support for newly added spec: Dimensions (width/height) in <source> tags25
11. + WASM SIMD25
12. window.onerror - / - particularly mobile browser support24
13. Add WebDriver23
14. Priority hints API23
15. Can I use Reporting API23
16. Hyphenation Options23
17. text-wrap23
18. CSS3 module "Generated Content for Paged Media" and especially the target-counter function22
19. Add ES7/2016 SIMD21
20. Add customizable select element, currently `<selectmenu>`20
21. XSLT Support table19
22. New feature: CSS Typed Object Model (CSS Typed OM)19
23. Show Support for JSON Modules19
24. JavaScript: Tail Call Support information missing19
25. WebExtensions (browser extensions)19
26. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)19
27. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....19
28. Support constructible stylesheets / adoptedStyleSheets18
29. Add CSS Grid Layout Module Level 3 (Masonry!)17
30. border-corner-shape16
31. device-cmyk css feature16
32. Page Lifecycle API16
33. Support Intrinsic Size Attribute15
34. `content: leader('.');`14
35. input-security13
36. ElementInternals/form-associated custom element13
37. I suggest support for TransferableObject types (of which there are several) 13
38. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
39. Geo URI scheme13
40. Color Fonts including SVG-in-OT fonts12
41. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
42. Async iterators / for await of12
43. New feature request: OCSP must-staple11
44. webcl?11
45. Add float: footnote to CSS311
46. Add WebRTC insertable streams11
47. Soft hyphen: html entity &shy;11
48. Add Webassembly Threads / Threaded Webassembly11
49. Add Web Share Level 210
50. Add Report-To API (Intervention Reports)10
51. Track Intl.Segmenter10
52. one-time-code10
53. Support for SVG's "shape-rendering" CSS property. 10
54. CSS Box Alignment Module Level 310
55. caniuse : Constructable Stylesheet10
56. @font-face descriptors to override font metrics10
57. queueMicrotask support10
58. CSS3 Speech Module Which browsers support it? See10
59. webM alpha transparency9
60. Add caniuse data for Contact Picker API9
61. List support for the window.fetch keepalive option9
62. Add Web Share Target API9
63. Include `baseline-shift` CSS property9
64. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
65. Quota Management API 9
66. Support CSS two-value display syntax9
67. Add CSS animation timing function spring()9
68. Cookies: max-age9
69. Add oklab() and oklch()9
70. HTTP2 Server Push8
71. HTMLVideoElement.requestVideoFrameCallback()8
72. Badging API8
73. Add `accent-color` property (CSS UI 4)8
74. SVG viewport-fill-opacity property support8
75. Add supported elliptical curves (HTTPS/TLS)8
76. Add CSS property `caret-shape` and shorthand `caret`8
77. WebGL extensions8
78. SVG viewport-fill property support8
79. Tiff image format7
80. This regards adding support for the navigator.userAgentData7
81. Secure Cookie flag7
82. Add `WebOTP` to list of apis7
83. Alt-Svc header browser support info: consider adding7
84. Add ShadowRealm API7
85. Feature: Origin-bound one-time codes delivered via SMS7
86. Add SVG `use` with external reference7
87. Support for the frame-ancestors directive7
88. User-Agent Client Hints (UA-CH)7
89. Please add "isInputPending()"7
90. HTML Modules7
91. autocorrect for input fileds7
92. input[autocomplete] (values besides on/off) 7
93. RFC7692 Compression Extensions for WebSocket7
94. Flag storage that is not available under private mode6
95. Add Web Share Target API Level 26
96. CSS 3 property: text-autospace and text-spacing6
97. Cannot see |ImageCapture| entry in the web interface.6
98. CSS tag {content: url()}6
99. Add support for Trust Tokens API6
100. Add CSS module script/CSS modules6
101. Accelerated Shape Detection in Images6
102. Add `enterkeyhint` attribute ("Enter Key Hint")6
103. Module Worker support6
104. New feature request: x25519 Key Exchange6
105. Add autocorrect, autocapitalize, autocomplete attributes6
106. Add CSS Values and Units Module Level 4 Mathematical Expressions6
107. Observable6
108. MediaStream Image Capture6
109. Add `multipart/x-mixed-replace`6
110. WebCrypto Key Discovery6
111. Geofencing API6
112. Page-margin boxes (@top-center, etc)6
113. Add 'require-sri-for' CSP Directive6
114. roundRect5
115. Add System Colors item5
116. External import maps5
117. Add Eyedropper API to caniuse5
118. Adding Khronos gITF 2.0 for 3D models5
119. Bundled HTTP Exchanges5
120. Add ECC certificates5
121. Please track the various HTTP Set-Cookie options supported by browsers5
122. Add support tables for document.documentElement.clientWidth5
123. Add Versatile Video Coding (VVC) … somewhen5
124. Add the Quite OK Image Format (QOI) …maybe eventually5
125. Add "outline follows border-radius"5
126. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
127. Support individual CSP rules5
128. USDZ file format5
129. HTTP Strict Transport Security Preload5
130. Audio codec - xHE-AAC / USAC5
131. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
132. Embedded color profiles in JPEG images.5
133. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
134. new CSS trigonometry functions5
135. -ms-overflow-style5
136. Feature: A Well-Known URL for Changing Passwords5
137. [WebCryptoAPI] randomUUID5
138. audio / video autoplay attribute and play function5
139. Add font-palette-values5
140. Add CSS Custom Highlight API4
141. CSS Shaders - 4
142. Support for Digital Goods API4
143. [CSS Level 4 pseudo-class] :user-error4
144. Add the `:modal` pseudo-class4
145. ::-webkit-file-upload-button4
146. Screen Capture4
147. Input Events Level 1 and 24
148. Window Placement API4
149. Cache-Control 4
150. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
151. Add supports() queries on @import4
152. For printing support for the size:landscape option to tell the browser what page orientation we want...4
153. Arithmetic coded JPEG support4
154. add Accessibility Object Model4
155. Add raw sockets API4
156. Support the W3 Web Annotation standard (W3C Recommendation)4
157. New top level domains (TLD)4
158. Add the `<model>` element4
159. Payment Handler API4
160. The !important css thing. It's very !important ;).4
161. Support for MHTML4
162. Support aria-hidden html property4
163. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
164. CSS Round Display4
165. CSS image() functional notation (e.g. for background-images etc). See 4
166. allowtransparency4
167. Web locks4
168. JS Self-Profiling API4
169. Add Cookie Store API4
170. Add Intl.DisplayNames3
171. add window-inactive pseudo-class3
172. ECMAscript - static properties3
173. Add `dynamic-range` media query3
174. New browser feature: rest/spread in object literals3
175. Add Media Session API Coverage Information3
176. getEventListeners not listed3
177. Add support for requestSubmit3
178. Add meta "format-detection"3
179. Public class properties3
180. place-items shorthand for justify and align3
181. Private Click Measurement (PCM)3
182. Tracking various WebAuthn features3
183. CanIUse OpenSearch3
184. CSS multicol data is mixed with fragmentation3
185. Add information for the webcal and webcals protocols for subscribing to iCalendars3
186. display: table-caption?3
187. Add <data> element3
188. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
189. Accessibility of in-browser PDF Viewer3
190. documentMode3
191. getTotalLength()3
192. Support SVG width/height = auto3
193. Add support for DNS RRs, like HTTPS and SVCB3
194. http://www.w3.org/TR/web-alarms/3
195. SVG sprites with <symbol> and <use>3
196. Can I Use m4a?3
197. Add "fetchpriority"3
198. Add support for addHitRegion3
199. ActiveX3
200. Support KV Storage build-in module2
201. Support of sms: and mms: in mobile browsers is not clear2
202. HTTP Trailers2
203. Animating SVG paths using CSS2
204. Loading Signed Exchanges2
205. filename*=UTF-8''...2
206. add "unicode property escapes"2
207. Add other values of `user-select` property2
208. Add Local Font Access API 2
209. File Handling API2
210. Device-Memory Client Hint & navigator.deviceMemory JS API2
211. x-webkit-speech2
212. Add the HTML focusgroup attribute2
213. MediaDevices.selectAudioOutput2
214. Storage Access API2
215. onerror event on iframe2
216. Add chrome.webrequests2
217. Can I use X3D?2
218. Basic Authentication: AuthName directive2
219. Add gRPC support2
220. Graphite font support2
221. Input type=email with "multiple" attribute2
222. dns.resolve2
223. webkit-calendar-picker-indicator2
224. Please add ES3 support2
225. Add Sanitizer API2
226. Add browser support for toggle()2
227. Missing feature: Clipboard API supported mimetypes2
228. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
229. track support for the media query feature -ms-high-contrast2
230. What about showing support for various link attributes, like "subresource" or "dns-pr...2
231. Touch Icons (apple-touch-icon)2
232. Tooltip display on focus2
233. rel="ar" support2
234. justify-content: space-around2
235. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
236. support destructuring assignment as separate es feature2
237. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
238. Show ANSI escape code for console.log.2
239. UTF-8 Dingbats2
240. Add information on context-stroke and context-fill2
241. Add Integrated Windows Authentication2
242. Add Geolocation Sensor2
243. <semantics> element in MathML is not found in caniuse.com2
244. A new page for Grid track animation should be added2
245. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
246. Container Queries should be broken out into three pages2
247. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
248. EventTarget Constructor2
249. WebXR Hand Input Module - Level 12
250. webp2 support2
251. Web bundles2
252. Content-Security-Policy: script-nonce2
253. SSML2
254. Add PNG cursor2
255. add iframe.csp2
256. SVG image auto height2
257. Add Scoped Styles aka. CSS Scoping2
258. add captureVisibleTab2
259. CSS touch-action level 2 values2
260. CSS page property (for printing)2
261. SharedMemory/Atomics2
262. srcset/sizes attribute / picture element support in SVG2
263. String.prototype.split() with a regex with grouping ( parentheses ).2
264. SameParty cookie attribute2
265. getFilesAndDirectories2
266. Support for CSS3 background-repeat-x and background-repeat-y properties2
267. HTTP immutable responses2
268. stroke-linejoin support2
269. setTimeout and setInterval callback parameters2
270. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
271. add csp lv2 violation event2
272. Track adoption of DOMFrameContentLoaded event2
273. console.assert(boolean_expression)2
274. Add TPG image file format2
275. Add "Window Controls Overlay"2
276. Spatial Navigation support2
277. Add 'animated GIF as favicon'?2
278. Add Wide Color Gamut in 2D Canvas2
279. Add CSS Scroll Snap Module Level 21
280. bidi algorithm (for right-to-left Unicode characters)1
281. nested calc() and var()1
282. Add `font-variant-emoji`1
283. Add entry for DTLS 1.31
284. Add `target="_new"`1
285. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
286. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
287. Can I use windowtext.1
288. Add "Scheduled Task API"1
289. Streams API: transferable streams1
290. text-space-collapse1
291. Add Web MIDI 2.0 …maybe eventually1
292. Show which browsers have a native CSV viewer1
293. Add IPFS (Interplanetary File System) protocol to Caniuse1
294. FLoC support1
295. Can you please add the Stack trace API that exists in V81
296. Adding contain-intrinsic-size (suggestion)1
297. Add IndexedDB 3.01
298. Add `blocking=render`1
299. import reflection for WASM1
300. Add `::-webkit-details-marker`1
301. feature request: video/MP2T1
302. stroke-linecap support1
303. Add Fetch upload streaming1
304. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)1
305. Add the Pop Up API aka. the `popup` attribute plus more1
306. Please add more detailed WebRTC features1
307. voice-* properties aren't listed1
308. Add: "color" and "background-color" CSS on <option> elements1
309. Add optional type syntax for JavaScript …maybe eventually1
310. iframe disallowdocumentaccess property1
311. device-pixel-content-box for ResizeObserver1
312. Sec-Ch-wow641
313. Metadata name: MobileOptimized1
314. sec-ch-prefers headers1
315. Add MathML Core1
316. Support for hrefTranslate1
317. Add CSS Toggles …maybe eventually1
318. TLS Encrypted Client Hello (ECH)1
319. Support HTJ2K1
320. Add compatibility data for QuickTime video format1
321. E4X: ECMAScript for XML1
322. Add "page based counters"1
323. No information about the `unselectable` HTML attribute.1
324. Add support information for font metric override descriptors1
325. requestPostAnimationFrame browser support?1
326. Support information for horizontal-viewport-segments and vertical-viewport-segments1
327. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
328. MPNG1
329. Add Web Neural Network (WebNN)1
330. Add `Notification.prototype​.showTrigger️`1
331. missing HTTP TRACE method1
332. performance.measureMemory()1
333. Add "specifying a color profile: the `@color-profile` at-rule"1
334. Add URL Protocol Handler Registration for PWAs1
335. Add Container Units aka. Container Relative Lengths1
336. Add CMYK Color Space1
337. Metadata name: HandheldFriendly1
338. Add Capture Handle1
339. Add server-timing as a trailer1
340. Add Notification Triggers1
341. `from-image` as initial value of `image-orientation`1
342. Add VisualViewport.segments support data1
343. auto Picture-in-Picture1
344. Add Date.prototype.toTemporalInstant()1
345. Add: Tracking Preference Expression APIs1
346. CMAF1
347. attachEvent event handler missing from CanIUse1
348. add CSS Extensions meant for renaming1
349. Add a footnote regarding HTMLAudioElement1
350. Support info for the <track> element1
351. Drag and Drop API - move constraints1
352. Drag and Drop API - ghost image with customizable opacity1
353. Audio Output Devices API: wd1
354. DeviceOrientation and DeviceMotion events on insecure origins1
355. audio / video .canPlayType(MIMEtype)1
356. Add Range.getBoundingClientRect browser support table1
357. Add support for mediacapture-output API's sinkID1
358. document type1
359. Add HTTP_ORIGIN feature1
360. Add box-suppress1
361. string-set1
362. Add CSS4 Grid structural selectors1
363. Internationalized Domain Name1
364. column combination1
365. SHA2 certificates1
366. event.path1
367. Add "Named function expressions"1
368. Open search autodiscovery1
369. add mouse event positions event.offsetX and event.offsetY1
370. reflected-xss missing1
371. Add XSL to caniuse1
372. Add support for CSS3 move-to property1
373. Missing `StorageQuota` support1
374. aria-labelledby1
375. SHA1 certificates1
376. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
377. request support for 'accept-charset'1
378. browserconfig.xml support info1
379. add micropub1
380. create @Media Types1
381. line-height support and the differences in rendering between webkit&trident and other engines.1
382. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
383. Browser support for RTP streams?1
384. Textarea wrap attribute (off, soft, hard, virtual, physical)1
385. Web intents/Web Activities 1
386. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
387. <meta name="apple-mobile-web-app-capable" content="yes" />1
388. accesskey attribute on non-focusable elements (should cause a click element to fire1
389. MediaStream Recording (1
390. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
391. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
392. script tag onerror attribute1
393. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
394. Input type=range with "multiple" attribute1
395. Edge and IE don't support IndexedDB in web workers1
396. longdesc attribute support1
397. CSS Inline Layout1
398. IETF RFCs1
399. Feature request: Token Binding Protocol1
400. add onstorage1
401. background-composite1
402. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
403. Add windows-theme media query selector1
404. window.localMediaStream is not listed1
405. ie behavior1
406. The xml:space attribute1
407. show support for namespacing; for example <svg: namespace 1
408. Add Object.prototype.watch method1
409. Please add support for getTimezoneOffset()1
410. Add support for the HTTP header X-Download-Options1
411. support data suggestion: DOM event constructors ?1
412. Add support for svg fill-rule1
413. The event handler window.onscroll is missing1
414. date.toLocaleString support tracking plz?1
415. https mixed mode1
416. Add page for relative path in HTTP Location1
417. OfflineAudioContext1
418. DownloadURL1
419. Use of es6 import statements in workers1
420. CSS3 new text-transform keywords1
421. step property of input field with type datetime-local and time1
422. please add the onsearch event1
423. supported-color-schemes & prefers-color-scheme1
424. <object>.contentWindow Support1
425. Refresh1
426. How to show support for font-variation-settings within @font-face?1
427. baseline-middle1
428. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
429. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
430. Support for calc() in polygon and other shapes1
431. Request: IPv6 proxy functions (myIpAddressEx and friends)1
432. Clean up css-touch-action1
433. Add desynchronized (low latency canvas contexts)1
434. @top-left @bottom-center ? can you test for compatibility1
435. Add Support for MPEG-4 Part 2 SP/ASP1
436. grid-row-gap and grid-column-gap1
437. Add the Javascript double asterisk power operator (**) to the list of supported features1
438. x-webkit-airplay1
439. What is the browser support for the newly proposed "page-orientation" property?1
440. Add layout-instability support1
441. Information about WavPack audio format1
442. InsertKey Behaviour Overwrite/Normal Mode1
443. Report Retry-After header support1
444. Suggested addition: navigator.cpuClass1
445. [Suggestion] display: fullscreen1
446. Javascript pseudoprotocol1
447. Add High Resolution Time Level 31
448. Add: Task Scheduler API Specification 1
449. Add css-timing 1
450. aria-current1
451. add aria-required to caniuse, if not already there1
452. Add app-region?1
453. URLSearchParams.prototype.sort1
454. SVG symbols in CSS1
455. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
456. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
457. Video media in image contexts1
458. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
459. Chained selectors1
460. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
461. Support for RegExp Named Capture Groups1
462. Support for Unicode and spaces in URL1
463. Support data for Unicode flag on HTML pattern attribute1
464. HTTP Content-encoding: LZFSE1
465. IPv6 support in web browsers1
466. add ime-mode1
467. Suggestion: support for margin-collapse?1
468. Missing computed property names1
469. Character-based alignment in a table column using text-align1
470. [Feature Policy: sub-feature] Sandbox features1
471. window.watchMedia()1
472. Add compatibility for FormData1
473. Add H2 ORIGIN frame support1
474. Add a matrix entyre for opentype-with-cff21
475. Support for Service Worker Life Cycle Events1
476. Add `WebSocketStream` API1