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: zstd53
2. Add HTTP 103 Early Hints45
3. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)38
4. css/svg property dominant-baseline38
5. Add support table for CSP 3.0 compliance34
6. Suggestion: MediaRecorder.isTypeSupported supported types/codecs29
7. Entries for href values including `tel:1234567` and `sms:1234567`27
8. Add customizable select element, currently `<selectmenu>`26
9. Hyphenation Options25
10. + WASM SIMD25
11. text-wrap25
12. Add WebDriver24
13. Can I use Reporting API24
14. Priority hints API23
15. CSS3 module "Generated Content for Paged Media" and especially the target-counter function22
16. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)22
17. Add ES7/2016 SIMD21
18. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....20
19. JavaScript: Tail Call Support information missing20
20. WebExtensions (browser extensions)20
21. Show Support for JSON Modules20
22. New feature: CSS Typed Object Model (CSS Typed OM)19
23. XSLT Support table19
24. Support constructible stylesheets / adoptedStyleSheets18
25. Add CSS Grid Layout Module Level 3 (Masonry!)18
26. device-cmyk css feature17
27. Page Lifecycle API16
28. border-corner-shape16
29. Support Intrinsic Size Attribute15
30. `content: leader('.');`14
31. ElementInternals/form-associated custom element14
32. input-security13
33. Geo URI scheme13
34. I suggest support for TransferableObject types (of which there are several) 13
35. Async iterators / for await of13
36. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
37. New feature request: OCSP must-staple12
38. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
39. Color Fonts including SVG-in-OT fonts12
40. Add WebRTC insertable streams11
41. Add Webassembly Threads / Threaded Webassembly11
42. Support for SVG's "shape-rendering" CSS property. 11
43. Soft hyphen: html entity &shy;11
44. Add float: footnote to CSS311
45. webcl?11
46. CSS3 Speech Module Which browsers support it? See11
47. Track Intl.Segmenter10
48. Add caniuse data for Contact Picker API10
49. @font-face descriptors to override font metrics10
50. CSS Box Alignment Module Level 310
51. caniuse : Constructable Stylesheet10
52. one-time-code10
53. Add Report-To API (Intervention Reports)10
54. Add CSS property `caret-shape` and shorthand `caret`10
55. Add Web Share Level 210
56. queueMicrotask support10
57. Add Web Share Target API10
58. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...10
59. Support CSS two-value display syntax9
60. HTTP2 Server Push9
61. SVG viewport-fill property support9
62. Cookies: max-age9
63. List support for the window.fetch keepalive option9
64. Add CSS animation timing function spring()9
65. Include `baseline-shift` CSS property9
66. Quota Management API 9
67. webM alpha transparency9
68. Add SVG `use` with external reference8
69. Add supported elliptical curves (HTTPS/TLS)8
70. WebGL extensions8
71. SVG viewport-fill-opacity property support8
72. Badging API8
73. Add ShadowRealm API8
74. Add support for DNS RRs, like HTTPS and SVCB8
75. Add passkeys8
76. HTML Modules7
77. Alt-Svc header browser support info: consider adding7
78. Tiff image format7
79. Please add "isInputPending()"7
80. This regards adding support for the navigator.userAgentData7
81. Support for the frame-ancestors directive7
82. Add "outline follows border-radius"7
83. Secure Cookie flag7
84. Feature: Origin-bound one-time codes delivered via SMS7
85. Add `WebOTP` to list of apis7
86. Page-margin boxes (@top-center, etc)7
87. RFC7692 Compression Extensions for WebSocket7
88. autocorrect for input fileds7
89. input[autocomplete] (values besides on/off) 7
90. User-Agent Client Hints (UA-CH)7
91. Add CSS Values and Units Module Level 4 Mathematical Expressions6
92. Add CSS Custom Highlight API6
93. Cannot see |ImageCapture| entry in the web interface.6
94. Geofencing API6
95. Add 'require-sri-for' CSP Directive6
96. Add `enterkeyhint` attribute ("Enter Key Hint")6
97. Observable6
98. MediaStream Image Capture6
99. Embedded color profiles in JPEG images.6
100. External import maps6
101. Add System Colors item6
102. Flag storage that is not available under private mode6
103. CSS tag {content: url()}6
104. Audio codec - xHE-AAC / USAC6
105. WebCrypto Key Discovery6
106. Add Web Share Target API Level 26
107. Add `multipart/x-mixed-replace`6
108. New feature request: x25519 Key Exchange6
109. Add support for Trust Tokens API6
110. CSS 3 property: text-autospace and text-spacing6
111. Add CSS module script/CSS modules6
112. Module Worker support6
113. Add autocorrect, autocapitalize, autocomplete attributes6
114. -ms-overflow-style6
115. Accelerated Shape Detection in Images6
116. Add the Quite OK Image Format (QOI) …maybe eventually6
117. Add ECC certificates5
118. Please track the various HTTP Set-Cookie options supported by browsers5
119. add Accessibility Object Model5
120. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
121. USDZ file format5
122. Adding Khronos gITF 2.0 for 3D models5
123. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
124. Add support tables for document.documentElement.clientWidth5
125. Support individual CSP rules5
126. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
127. new CSS trigonometry functions5
128. HTTP Strict Transport Security Preload5
129. allowtransparency5
130. Support for MHTML5
131. Bundled HTTP Exchanges5
132. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
133. Add font-palette-values5
134. Window Placement API5
135. Add Versatile Video Coding (VVC) … somewhen5
136. audio / video autoplay attribute and play function5
137. Feature: A Well-Known URL for Changing Passwords5
138. CSS Shaders - 5
139. Add supports() queries on @import5
140. roundRect5
141. Support aria-hidden html property4
142. Web locks4
143. Add raw sockets API4
144. Tracking various WebAuthn features4
145. Page Transitions4
146. Add Intl.DisplayNames4
147. Arithmetic coded JPEG support4
148. Add meta "format-detection"4
149. CanIUse OpenSearch4
150. JS Self-Profiling API4
151. Input Events Level 1 and 24
152. Add Cookie Store API4
153. ::-webkit-file-upload-button4
154. CSS Round Display4
155. Support for Digital Goods API4
156. Payment Handler API4
157. Add the `<model>` element4
158. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
159. Add the `:modal` pseudo-class4
160. SameParty cookie attribute4
161. Add IPFS (Interplanetary File System) protocol to Caniuse4
162. Screen Capture4
163. Support the W3 Web Annotation standard (W3C Recommendation)4
164. [CSS Level 4 pseudo-class] :user-error4
165. New top level domains (TLD)4
166. Support SVG width/height = auto4
167. The !important css thing. It's very !important ;).4
168. SVG sprites with <symbol> and <use>4
169. For printing support for the size:landscape option to tell the browser what page orientation we want...4
170. CSS image() functional notation (e.g. for background-images etc). See 4
171. Input type=email with "multiple" attribute4
172. Cache-Control 4
173. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
174. place-items shorthand for justify and align3
175. Can I Use m4a?3
176. Web bundles3
177. CSS page property (for printing)3
178. Add Scoped Styles aka. CSS Scoping3
179. Add support for addHitRegion3
180. display: table-caption?3
181. documentMode3
182. add iframe.csp3
183. add window-inactive pseudo-class3
184. getEventListeners not listed3
185. Add `dynamic-range` media query3
186. justify-content: space-around3
187. ECMAscript - static properties3
188. Add support for requestSubmit3
189. New browser feature: rest/spread in object literals3
190. Public class properties3
191. Private Click Measurement (PCM)3
192. CSS multicol data is mixed with fragmentation3
193. Add information for the webcal and webcals protocols for subscribing to iCalendars3
194. Add Local Font Access API 3
195. Add the Pop Up API aka. the `popup` attribute plus more3
196. Add the HTML focusgroup attribute3
197. Accessibility of in-browser PDF Viewer3
198. webp2 support3
199. Add "page based counters"3
200. getTotalLength()3
201. Add Media Session API Coverage Information3
202. CSS view-timeline supports3
203. File Handling API3
204. Missing feature: Clipboard API supported mimetypes2
205. Track adoption of DOMFrameContentLoaded event2
206. Tooltip display on focus2
207. track support for the media query feature -ms-high-contrast2
208. A new page for Grid track animation should be added2
209. rel="ar" support2
210. text-space-collapse2
211. Add the Javascript double asterisk power operator (**) to the list of supported features2
212. x-webkit-speech2
213. Show ANSI escape code for console.log.2
214. Add Geolocation Sensor2
215. Add CSS4 Grid structural selectors2
216. Add information on context-stroke and context-fill2
217. Add Integrated Windows Authentication2
218. Add browser support for toggle()2
219. <semantics> element in MathML is not found in caniuse.com2
220. Basic Authentication: AuthName directive2
221. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
222. dns.resolve2
223. Can I use X3D?2
224. Loading Signed Exchanges2
225. onerror event on iframe2
226. Animating SVG paths using CSS2
227. Add Fetch upload streaming2
228. HTTP Trailers2
229. Container Queries should be broken out into three pages2
230. support destructuring assignment as separate es feature2
231. filename*=UTF-8''...2
232. Drag and Drop API - ghost image with customizable opacity2
233. Add Wide Color Gamut in 2D Canvas2
234. Add "Window Controls Overlay"2
235. Touch Icons (apple-touch-icon)2
236. Add Date.prototype.toTemporalInstant()2
237. Add TPG image file format2
238. What about showing support for various link attributes, like "subresource" or "dns-pr...2
239. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)2
240. stroke-linejoin support2
241. Add gRPC support2
242. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
243. Show which browsers have a native CSV viewer2
244. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
245. UTF-8 Dingbats2
246. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
247. WebXR Hand Input Module - Level 12
248. Add chrome.webrequests2
249. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
250. Graphite font support2
251. Input type=range with "multiple" attribute2
252. Support for hrefTranslate2
253. Metadata name: MobileOptimized2
254. Metadata name: HandheldFriendly2
255. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
256. `from-image` as initial value of `image-orientation`2
257. Support of sms: and mms: in mobile browsers is not clear2
258. webkit-calendar-picker-indicator2
259. Support KV Storage build-in module2
260. Add "HDR AVIF" image support2
261. Storage Access API2
262. add captureVisibleTab2
263. Spatial Navigation support2
264. Add 'animated GIF as favicon'?2
265. SharedMemory/Atomics2
266. SSML2
267. Add PNG cursor2
268. Content-Security-Policy: script-nonce2
269. add csp lv2 violation event2
270. SVG image auto height2
271. getFilesAndDirectories2
272. add "unicode property escapes"2
273. CSS touch-action level 2 values2
274. Add support for HTTP header X-Permitted-Cross-Domain-Policies2
275. srcset/sizes attribute / picture element support in SVG2
276. SVG symbols in CSS2
277. setTimeout and setInterval callback parameters2
278. Device-Memory Client Hint & navigator.deviceMemory JS API2
279. HTTP immutable responses2
280. String.prototype.split() with a regex with grouping ( parentheses ).2
281. Support for CSS3 background-repeat-x and background-repeat-y properties2
282. EventTarget Constructor2
283. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
284. console.assert(boolean_expression)2
285. baseline-middle1
286. aria-labelledby1
287. Add Notification Triggers1
288. Add CMYK Color Space1
289. Add Web Neural Network (WebNN)1
290. Missing `StorageQuota` support1
291. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
292. Video media in image contexts1
293. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
294. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
295. Web intents/Web Activities 1
296. Add compatibility data for QuickTime video format1
297. <object>.contentWindow Support1
298. OfflineAudioContext1
299. Add server-timing as a trailer1
300. SHA1 certificates1
301. supported-color-schemes & prefers-color-scheme1
302. Add support for the HTTP header X-Download-Options1
303. MPNG1
304. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
305. Add MathML Core1
306. <meta name="apple-mobile-web-app-capable" content="yes" />1
307. nested calc() and var()1
308. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
309. Add a footnote regarding HTMLAudioElement1
310. Support info for the <track> element1
311. Can you please add the Stack trace API that exists in V81
312. Add page for relative path in HTTP Location1
313. stroke-linecap support1
314. Please add more detailed WebRTC features1
315. Javascript pseudoprotocol1
316. Chained selectors1
317. step property of input field with type datetime-local and time1
318. Can I use windowtext.1
319. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
320. MediaStream Recording (1
321. feature request: video/MP2T1
322. Add XSL to caniuse1
323. accesskey attribute on non-focusable elements (should cause a click element to fire1
324. Add Container Units aka. Container Relative Lengths1
325. Add support for CSS3 move-to property1
326. please add the onsearch event1
327. CSS3 new text-transform keywords1
328. missing HTTP TRACE method1
329. Add `WebSocketStream` API1
330. Add Web MIDI 2.0 …maybe eventually1
331. add aria-required to caniuse, if not already there1
332. aria-current1
333. support data suggestion: DOM event constructors ?1
334. Add css-timing 1
335. import reflection for WASM1
336. Add `blocking=render`1
337. Add IndexedDB 3.01
338. Add Payment Request API 1.11
339. Add Background Blur API1
340. Add tech() function support (in @font-face src)1
341. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
342. line-height support and the differences in rendering between webkit&trident and other engines.1
343. Add CSS Anchor Positioning …maybe eventually1
344. Add auto-expand `<details>` for find-in-page and fragment navigations1
345. Add High Resolution Time Level 31
346. Playback of videos with alpha channel1
347. Add `PWA file handlers`1
348. Audio Output Devices API: wd1
349. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
350. Support HTJ2K1
351. sec-ch-prefers headers1
352. Textarea wrap attribute (off, soft, hard, virtual, physical)1
353. TLS Encrypted Client Hello (ECH)1
354. Add optional type syntax for JavaScript …maybe eventually1
355. Add `Notification.prototype​.showTrigger️`1
356. DeviceOrientation and DeviceMotion events on insecure origins1
357. URLSearchParams.prototype.sort1
358. Add CSS Toggles …maybe eventually1
359. Use of es6 import statements in workers1
360. Sec-Ch-wow641
361. Add CSS Scroll Snap Module Level 21
362. Support information for horizontal-viewport-segments and vertical-viewport-segments1
363. Add app-region?1
364. Add VisualViewport.segments support data1
365. Add Capture Handle1
366. add micropub1
367. Drag and Drop API - move constraints1
368. Add "Scheduled Task API"1
369. Add `font-variant-emoji`1
370. Add `target="_new"`1
371. Add entry for DTLS 1.31
372. Add "specifying a color profile: the `@color-profile` at-rule"1
373. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
374. x-webkit-airplay1
375. window.localMediaStream is not listed1
376. date.toLocaleString support tracking plz?1
377. Add H2 ORIGIN frame support1
378. Add compatibility for FormData1
379. [Suggestion] display: fullscreen1
380. Internationalized Domain Name1
381. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
382. window.watchMedia()1
383. What is the browser support for the newly proposed "page-orientation" property?1
384. show support for namespacing; for example <svg: namespace 1
385. Add layout-instability support1
386. background-composite1
387. column combination1
388. Information about WavPack audio format1
389. InsertKey Behaviour Overwrite/Normal Mode1
390. add onstorage1
391. Feature request: Token Binding Protocol1
392. Add support for svg fill-rule1
393. The xml:space attribute1
394. Add Support for MPEG-4 Part 2 SP/ASP1
395. CMAF1
396. document type1
397. Support for calc() in polygon and other shapes1
398. Report Retry-After header support1
399. add CSS Extensions meant for renaming1
400. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
401. request support for 'accept-charset'1
402. Suggested addition: navigator.cpuClass1
403. Request: IPv6 proxy functions (myIpAddressEx and friends)1
404. Support for Service Worker Life Cycle Events1
405. Add support for mediacapture-output API's sinkID1
406. Add Object.prototype.watch method1
407. Clean up css-touch-action1
408. Add a matrix entyre for opentype-with-cff21
409. Add HTTP_ORIGIN feature1
410. Add desynchronized (low latency canvas contexts)1
411. Add box-suppress1
412. @top-left @bottom-center ? can you test for compatibility1
413. string-set1
414. browserconfig.xml support info1
415. [Feature Policy: sub-feature] Sandbox features1
416. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
417. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
418. DownloadURL1
419. Add support information for font metric override descriptors1
420. Support for Unicode and spaces in URL1
421. add mouse event positions event.offsetX and event.offsetY1
422. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
423. How to show support for font-variation-settings within @font-face?1
424. bidi algorithm (for right-to-left Unicode characters)1
425. FLoC support1
426. create @Media Types1
427. Add `::-webkit-details-marker`1
428. Open search autodiscovery1
429. Add: "color" and "background-color" CSS on <option> elements1
430. Add URL Protocol Handler Registration for PWAs1
431. Refresh1
432. requestPostAnimationFrame browser support?1
433. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
434. reflected-xss missing1
435. E4X: ECMAScript for XML1
436. script tag onerror attribute1
437. No information about the `unselectable` HTML attribute.1
438. device-pixel-content-box for ResizeObserver1
439. Adding contain-intrinsic-size (suggestion)1
440. Streams API: transferable streams1
441. IETF RFCs1
442. SHA2 certificates1
443. Add Range.getBoundingClientRect browser support table1
444. Character-based alignment in a table column using text-align1
445. The event handler window.onscroll is missing1
446. event.path1
447. CSS Inline Layout1
448. Missing computed property names1
449. iframe disallowdocumentaccess property1
450. Add "Named function expressions"1
451. performance.measureMemory()1
452. longdesc attribute support1
453. Add: Tracking Preference Expression APIs1
454. Suggestion: support for margin-collapse?1
455. https mixed mode1
456. auto Picture-in-Picture1
457. IPv6 support in web browsers1
458. HTTP Content-encoding: LZFSE1
459. Support data for Unicode flag on HTML pattern attribute1
460. Add windows-theme media query selector1