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: zstd49
2. Add HTTP 103 Early Hints43
3. css/svg property dominant-baseline37
4. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)36
5. Add support table for CSP 3.0 compliance32
6. Suggestion: MediaRecorder.isTypeSupported supported types/codecs29
7. Entries for href values including `tel:1234567` and `sms:1234567`26
8. + WASM SIMD25
9. Track support for newly added spec: Dimensions (width/height) in <source> tags25
10. text-wrap24
11. Hyphenation Options24
12. Add WebDriver24
13. Can I use Reporting API24
14. Priority hints API23
15. Add customizable select element, currently `<selectmenu>`22
16. CSS3 module "Generated Content for Paged Media" and especially the target-counter function22
17. Add ES7/2016 SIMD21
18. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)21
19. WebExtensions (browser extensions)20
20. JavaScript: Tail Call Support information missing20
21. Show Support for JSON Modules20
22. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....19
23. New feature: CSS Typed Object Model (CSS Typed OM)19
24. XSLT Support table19
25. Support constructible stylesheets / adoptedStyleSheets18
26. Add CSS Grid Layout Module Level 3 (Masonry!)17
27. device-cmyk css feature17
28. Page Lifecycle API16
29. border-corner-shape16
30. Support Intrinsic Size Attribute15
31. `content: leader('.');`14
32. Async iterators / for await of13
33. Geo URI scheme13
34. ElementInternals/form-associated custom element13
35. I suggest support for TransferableObject types (of which there are several) 13
36. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
37. input-security13
38. Color Fonts including SVG-in-OT fonts12
39. New feature request: OCSP must-staple12
40. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
41. Support for SVG's "shape-rendering" CSS property. 11
42. Add Webassembly Threads / Threaded Webassembly11
43. webcl?11
44. Soft hyphen: html entity &shy;11
45. CSS3 Speech Module Which browsers support it? See11
46. Add WebRTC insertable streams11
47. Add float: footnote to CSS311
48. Track Intl.Segmenter10
49. CSS Box Alignment Module Level 310
50. caniuse : Constructable Stylesheet10
51. one-time-code10
52. @font-face descriptors to override font metrics10
53. Add Report-To API (Intervention Reports)10
54. Add Web Share Level 210
55. queueMicrotask support10
56. Add caniuse data for Contact Picker API10
57. List support for the window.fetch keepalive option9
58. Quota Management API 9
59. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
60. Add oklab() and oklch()9
61. Cookies: max-age9
62. Add CSS animation timing function spring()9
63. Include `baseline-shift` CSS property9
64. Add Web Share Target API9
65. Support CSS two-value display syntax9
66. webM alpha transparency9
67. HTTP2 Server Push9
68. WebGL extensions8
69. HTMLVideoElement.requestVideoFrameCallback()8
70. Badging API8
71. SVG viewport-fill-opacity property support8
72. SVG viewport-fill property support8
73. Add supported elliptical curves (HTTPS/TLS)8
74. Add CSS property `caret-shape` and shorthand `caret`8
75. Add ShadowRealm API8
76. Add SVG `use` with external reference8
77. RFC7692 Compression Extensions for WebSocket7
78. Secure Cookie flag7
79. User-Agent Client Hints (UA-CH)7
80. HTML Modules7
81. Add `WebOTP` to list of apis7
82. Alt-Svc header browser support info: consider adding7
83. autocorrect for input fileds7
84. Support for the frame-ancestors directive7
85. Please add "isInputPending()"7
86. Tiff image format7
87. Feature: Origin-bound one-time codes delivered via SMS7
88. input[autocomplete] (values besides on/off) 7
89. Page-margin boxes (@top-center, etc)7
90. This regards adding support for the navigator.userAgentData7
91. New feature request: x25519 Key Exchange6
92. Flag storage that is not available under private mode6
93. WebCrypto Key Discovery6
94. Add System Colors item6
95. CSS tag {content: url()}6
96. Accelerated Shape Detection in Images6
97. Observable6
98. Cannot see |ImageCapture| entry in the web interface.6
99. CSS 3 property: text-autospace and text-spacing6
100. Add 'require-sri-for' CSP Directive6
101. Module Worker support6
102. Add Web Share Target API Level 26
103. MediaStream Image Capture6
104. Add `enterkeyhint` attribute ("Enter Key Hint")6
105. Audio codec - xHE-AAC / USAC6
106. Add support for Trust Tokens API6
107. Add autocorrect, autocapitalize, autocomplete attributes6
108. Add CSS Custom Highlight API6
109. Add "outline follows border-radius"6
110. Add `multipart/x-mixed-replace`6
111. Geofencing API6
112. Add CSS module script/CSS modules6
113. Add CSS Values and Units Module Level 4 Mathematical Expressions6
114. -ms-overflow-style6
115. Support individual CSP rules5
116. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
117. Please track the various HTTP Set-Cookie options supported by browsers5
118. Add ECC certificates5
119. Add support tables for document.documentElement.clientWidth5
120. External import maps5
121. roundRect5
122. Add support for DNS RRs, like HTTPS and SVCB5
123. USDZ file format5
124. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
125. Embedded color profiles in JPEG images.5
126. Add supports() queries on @import5
127. Adding Khronos gITF 2.0 for 3D models5
128. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
129. new CSS trigonometry functions5
130. audio / video autoplay attribute and play function5
131. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
132. HTTP Strict Transport Security Preload5
133. Add Versatile Video Coding (VVC) … somewhen5
134. Add font-palette-values5
135. allowtransparency5
136. Feature: A Well-Known URL for Changing Passwords5
137. Bundled HTTP Exchanges5
138. Add the Quite OK Image Format (QOI) …maybe eventually5
139. Cache-Control 4
140. CSS image() functional notation (e.g. for background-images etc). See 4
141. Screen Capture4
142. add Accessibility Object Model4
143. Arithmetic coded JPEG support4
144. Add the `<model>` element4
145. Support aria-hidden html property4
146. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
147. Add Intl.DisplayNames4
148. The !important css thing. It's very !important ;).4
149. Add the `:modal` pseudo-class4
150. ::-webkit-file-upload-button4
151. CSS Round Display4
152. Support for MHTML4
153. New top level domains (TLD)4
154. Add raw sockets API4
155. Payment Handler API4
156. CanIUse OpenSearch4
157. Support for Digital Goods API4
158. [CSS Level 4 pseudo-class] :user-error4
159. JS Self-Profiling API4
160. Input type=email with "multiple" attribute4
161. Add Cookie Store API4
162. CSS Shaders - 4
163. Input Events Level 1 and 24
164. Support SVG width/height = auto4
165. Window Placement API4
166. Support the W3 Web Annotation standard (W3C Recommendation)4
167. Tracking various WebAuthn features4
168. SVG sprites with <symbol> and <use>4
169. Web locks4
170. For printing support for the size:landscape option to tell the browser what page orientation we want...4
171. CSS page property (for printing)3
172. Add information for the webcal and webcals protocols for subscribing to iCalendars3
173. Add the HTML focusgroup attribute3
174. Add "page based counters"3
175. Accessibility of in-browser PDF Viewer3
176. Add meta "format-detection"3
177. place-items shorthand for justify and align3
178. New browser feature: rest/spread in object literals3
179. justify-content: space-around3
180. ECMAscript - static properties3
181. Add Media Session API Coverage Information3
182. Add `dynamic-range` media query3
183. Add support for requestSubmit3
184. Private Click Measurement (PCM)3
185. CSS multicol data is mixed with fragmentation3
186. add iframe.csp3
187. Public class properties3
188. Can I Use m4a?3
189. Add Scoped Styles aka. CSS Scoping3
190. getEventListeners not listed3
191. add window-inactive pseudo-class3
192. webp2 support3
193. Web bundles3
194. Add passkeys3
195. Add support for addHitRegion3
196. documentMode3
197. getTotalLength()3
198. Add <data> element3
199. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
200. http://www.w3.org/TR/web-alarms/3
201. display: table-caption?3
202. Drag and Drop API - ghost image with customizable opacity2
203. Add IPFS (Interplanetary File System) protocol to Caniuse2
204. Support KV Storage build-in module2
205. Add Date.prototype.toTemporalInstant()2
206. SharedMemory/Atomics2
207. Basic Authentication: AuthName directive2
208. Storage Access API2
209. Add TPG image file format2
210. Touch Icons (apple-touch-icon)2
211. Missing feature: Clipboard API supported mimetypes2
212. Add CSS4 Grid structural selectors2
213. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
214. What about showing support for various link attributes, like "subresource" or "dns-pr...2
215. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
216. Content-Security-Policy: script-nonce2
217. Add gRPC support2
218. File Handling API2
219. Add chrome.webrequests2
220. Input type=range with "multiple" attribute2
221. add "unicode property escapes"2
222. Add "Window Controls Overlay"2
223. Graphite font support2
224. Add Wide Color Gamut in 2D Canvas2
225. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
226. voice-* properties aren't listed2
227. Add information on context-stroke and context-fill2
228. UTF-8 Dingbats2
229. Add Integrated Windows Authentication2
230. Add Geolocation Sensor2
231. <semantics> element in MathML is not found in caniuse.com2
232. stroke-linejoin support2
233. console.assert(boolean_expression)2
234. HTTP Trailers2
235. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
236. Add 'animated GIF as favicon'?2
237. Animating SVG paths using CSS2
238. dns.resolve2
239. Loading Signed Exchanges2
240. Add the Javascript double asterisk power operator (**) to the list of supported features2
241. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
242. onerror event on iframe2
243. Can I use X3D?2
244. rel="ar" support2
245. SameParty cookie attribute2
246. Show ANSI escape code for console.log.2
247. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
248. text-space-collapse2
249. WebXR Hand Input Module - Level 12
250. Device-Memory Client Hint & navigator.deviceMemory JS API2
251. webkit-calendar-picker-indicator2
252. x-webkit-speech2
253. MediaDevices.selectAudioOutput2
254. `from-image` as initial value of `image-orientation`2
255. HTTP immutable responses2
256. SSML2
257. support destructuring assignment as separate es feature2
258. Add other values of `user-select` property2
259. Add PNG cursor2
260. add captureVisibleTab2
261. Tooltip display on focus2
262. add csp lv2 violation event2
263. Add the Pop Up API aka. the `popup` attribute plus more2
264. SVG image auto height2
265. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
266. String.prototype.split() with a regex with grouping ( parentheses ).2
267. A new page for Grid track animation should be added2
268. srcset/sizes attribute / picture element support in SVG2
269. EventTarget Constructor2
270. Please add ES3 support2
271. Add browser support for toggle()2
272. Track adoption of DOMFrameContentLoaded event2
273. Support of sms: and mms: in mobile browsers is not clear2
274. Add Local Font Access API 2
275. Support for hrefTranslate2
276. Spatial Navigation support2
277. CSS touch-action level 2 values2
278. getFilesAndDirectories2
279. SVG symbols in CSS2
280. track support for the media query feature -ms-high-contrast2
281. setTimeout and setInterval callback parameters2
282. filename*=UTF-8''...2
283. Container Queries should be broken out into three pages2
284. Support for CSS3 background-repeat-x and background-repeat-y properties2
285. Add support information for font metric override descriptors1
286. Can you please add the Stack trace API that exists in V81
287. Feature request: Token Binding Protocol1
288. add onstorage1
289. longdesc attribute support1
290. create @Media Types1
291. Show which browsers have a native CSV viewer1
292. IETF RFCs1
293. Add entry for DTLS 1.31
294. missing HTTP TRACE method1
295. requestPostAnimationFrame browser support?1
296. bidi algorithm (for right-to-left Unicode characters)1
297. Add "specifying a color profile: the `@color-profile` at-rule"1
298. FLoC support1
299. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
300. CSS Inline Layout1
301. Add `::-webkit-details-marker`1
302. Add: "color" and "background-color" CSS on <option> elements1
303. E4X: ECMAScript for XML1
304. Add URL Protocol Handler Registration for PWAs1
305. Video media in image contexts1
306. MediaStream Recording (1
307. stroke-linecap support1
308. Add CSS Scroll Snap Module Level 21
309. Add CSS Toggles …maybe eventually1
310. sec-ch-prefers headers1
311. Sec-Ch-wow641
312. Support information for horizontal-viewport-segments and vertical-viewport-segments1
313. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
314. Add VisualViewport.segments support data1
315. Add Capture Handle1
316. Add "Scheduled Task API"1
317. Add `font-variant-emoji`1
318. Add `target="_new"`1
319. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
320. Add `Notification.prototype​.showTrigger️`1
321. Add Background Blur API1
322. Add Web MIDI 2.0 …maybe eventually1
323. line-height support and the differences in rendering between webkit&trident and other engines.1
324. Add Fetch upload streaming1
325. import reflection for WASM1
326. Add `blocking=render`1
327. Add IndexedDB 3.01
328. Add `WebSocketStream` API1
329. Add Payment Request API 1.11
330. Add tech() function support (in @font-face src)1
331. Browser support for RTP streams?1
332. Add optional type syntax for JavaScript …maybe eventually1
333. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)1
334. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
335. Please add more detailed WebRTC features1
336. nested calc() and var()1
337. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
338. Can I use windowtext.1
339. feature request: video/MP2T1
340. script tag onerror attribute1
341. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
342. Add Container Units aka. Container Relative Lengths1
343. Add MathML Core1
344. Add compatibility data for QuickTime video format1
345. Add Notification Triggers1
346. TLS Encrypted Client Hello (ECH)1
347. Add CMYK Color Space1
348. Add Web Neural Network (WebNN)1
349. accesskey attribute on non-focusable elements (should cause a click element to fire1
350. <meta name="apple-mobile-web-app-capable" content="yes" />1
351. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
352. Add server-timing as a trailer1
353. Web intents/Web Activities 1
354. Textarea wrap attribute (off, soft, hard, virtual, physical)1
355. MPNG1
356. Support HTJ2K1
357. No information about the `unselectable` HTML attribute.1
358. browserconfig.xml support info1
359. device-pixel-content-box for ResizeObserver1
360. Report Retry-After header support1
361. window.watchMedia()1
362. Missing `StorageQuota` support1
363. Add compatibility for FormData1
364. Add H2 ORIGIN frame support1
365. Add support for CSS3 move-to property1
366. Add XSL to caniuse1
367. Add a matrix entyre for opentype-with-cff21
368. Support for Service Worker Life Cycle Events1
369. Suggested addition: navigator.cpuClass1
370. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
371. date.toLocaleString support tracking plz?1
372. aria-labelledby1
373. reflected-xss missing1
374. https mixed mode1
375. Add page for relative path in HTTP Location1
376. OfflineAudioContext1
377. add mouse event positions event.offsetX and event.offsetY1
378. Open search autodiscovery1
379. Add "Named function expressions"1
380. DownloadURL1
381. event.path1
382. Use of es6 import statements in workers1
383. CSS3 new text-transform keywords1
384. [Feature Policy: sub-feature] Sandbox features1
385. Character-based alignment in a table column using text-align1
386. please add the onsearch event1
387. Add High Resolution Time Level 31
388. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
389. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
390. URLSearchParams.prototype.sort1
391. Chained selectors1
392. Javascript pseudoprotocol1
393. Add app-region?1
394. add aria-required to caniuse, if not already there1
395. aria-current1
396. Add css-timing 1
397. Add: Task Scheduler API Specification 1
398. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
399. SHA1 certificates1
400. [Suggestion] display: fullscreen1
401. Support for Unicode and spaces in URL1
402. support data suggestion: DOM event constructors ?1
403. Support data for Unicode flag on HTML pattern attribute1
404. HTTP Content-encoding: LZFSE1
405. IPv6 support in web browsers1
406. add micropub1
407. Suggestion: support for margin-collapse?1
408. Add: Tracking Preference Expression APIs1
409. Add support for the HTTP header X-Download-Options1
410. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
411. step property of input field with type datetime-local and time1
412. supported-color-schemes & prefers-color-scheme1
413. background-composite1
414. Adding contain-intrinsic-size (suggestion)1
415. x-webkit-airplay1
416. What is the browser support for the newly proposed "page-orientation" property?1
417. Add layout-instability support1
418. Information about WavPack audio format1
419. InsertKey Behaviour Overwrite/Normal Mode1
420. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
421. Please add support for getTimezoneOffset()1
422. Add support for svg fill-rule1
423. CMAF1
424. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
425. Add Object.prototype.watch method1
426. add CSS Extensions meant for renaming1
427. show support for namespacing; for example <svg: namespace 1
428. The xml:space attribute1
429. window.localMediaStream is not listed1
430. Streams API: transferable streams1
431. iframe disallowdocumentaccess property1
432. performance.measureMemory()1
433. Add windows-theme media query selector1
434. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
435. auto Picture-in-Picture1
436. Metadata name: HandheldFriendly1
437. Metadata name: MobileOptimized1
438. request support for 'accept-charset'1
439. Add a footnote regarding HTMLAudioElement1
440. <object>.contentWindow Support1
441. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
442. SHA2 certificates1
443. column combination1
444. Internationalized Domain Name1
445. string-set1
446. Refresh1
447. How to show support for font-variation-settings within @font-face?1
448. Add box-suppress1
449. The event handler window.onscroll is missing1
450. Add HTTP_ORIGIN feature1
451. baseline-middle1
452. Support for calc() in polygon and other shapes1
453. Support info for the <track> element1
454. document type1
455. Add support for mediacapture-output API's sinkID1
456. Add Range.getBoundingClientRect browser support table1
457. Request: IPv6 proxy functions (myIpAddressEx and friends)1
458. Clean up css-touch-action1
459. DeviceOrientation and DeviceMotion events on insecure origins1
460. Add desynchronized (low latency canvas contexts)1
461. Audio Output Devices API: wd1
462. @top-left @bottom-center ? can you test for compatibility1
463. Drag and Drop API - move constraints1
464. Add Support for MPEG-4 Part 2 SP/ASP1
465. Missing computed property names1