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: zstd66
2. Add HTTP 103 Early Hints47
3. text-wrap45
4. css/svg property dominant-baseline41
5. Add customizable select element, currently `<selectmenu>`38
6. Add support table for CSP 3.0 compliance34
7. Suggestion: MediaRecorder.isTypeSupported supported types/codecs31
8. Entries for href values including `tel:1234567` and `sms:1234567`29
9. + WASM SIMD28
10. Hyphenation Options27
11. CSS3 module "Generated Content for Paged Media" and especially the target-counter function24
12. Add WebDriver24
13. Can I use Reporting API24
14. Priority hints API23
15. Show Support for JSON Modules22
16. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)22
17. WebExtensions (browser extensions)21
18. Add ES7/2016 SIMD21
19. JavaScript: Tail Call Support information missing20
20. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....20
21. New feature: CSS Typed Object Model (CSS Typed OM)19
22. XSLT Support table19
23. Support constructible stylesheets / adoptedStyleSheets18
24. Add CSS Grid Layout Module Level 3 (Masonry!)18
25. device-cmyk css feature17
26. border-corner-shape17
27. Page Lifecycle API16
28. Add CSS property `caret-shape` and shorthand `caret`15
29. ElementInternals/form-associated custom element15
30. `content: leader('.');`15
31. Support Intrinsic Size Attribute15
32. Add support for DNS RRs, like HTTPS and SVCB14
33. Add passkeys14
34. Async iterators / for await of13
35. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
36. input-security13
37. Geo URI scheme13
38. I suggest support for TransferableObject types (of which there are several) 13
39. Color Fonts including SVG-in-OT fonts12
40. New feature request: OCSP must-staple12
41. Soft hyphen: html entity &shy;12
42. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
43. Add Web Share Target API12
44. External import maps11
45. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more)11
46. Add Webassembly Threads / Threaded Webassembly11
47. CSS3 Speech Module Which browsers support it? See11
48. Support for SVG's "shape-rendering" CSS property. 11
49. Add WebRTC insertable streams11
50. Add float: footnote to CSS311
51. webcl?11
52. Add the `<search>` element10
53. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...10
54. queueMicrotask support10
55. Track Intl.Segmenter10
56. Add Web Share Level 210
57. webM alpha transparency10
58. CSS Box Alignment Module Level 310
59. one-time-code10
60. @font-face descriptors to override font metrics10
61. caniuse : Constructable Stylesheet10
62. Include `baseline-shift` CSS property10
63. Add caniuse data for Contact Picker API10
64. Add Report-To API (Intervention Reports)10
65. HTTP2 Server Push9
66. Cookies: max-age9
67. Add CSS animation timing function spring()9
68. Support CSS two-value display syntax9
69. Badging API9
70. Page-margin boxes (@top-center, etc)9
71. List support for the window.fetch keepalive option9
72. Quota Management API 9
73. Page Transitions9
74. Add the Quite OK Image Format (QOI) …maybe eventually9
75. WebGL extensions8
76. Add supported elliptical curves (HTTPS/TLS)8
77. Add "outline follows border-radius"8
78. Add ShadowRealm API8
79. Add CSS Custom Highlight API8
80. SVG viewport-fill-opacity property support8
81. Add SVG `use` with external reference8
82. SVG viewport-fill property support8
83. Tiff image format7
84. New feature request: x25519 Key Exchange7
85. Add Versatile Video Coding (VVC) … somewhen7
86. Add support for Trust Tokens API7
87. User-Agent Client Hints (UA-CH)7
88. Please add "isInputPending()"7
89. Add `WebOTP` to list of apis7
90. autocorrect for input fileds7
91. Add CSS module script/CSS modules7
92. HTML Modules7
93. input[autocomplete] (values besides on/off) 7
94. Support for the frame-ancestors directive7
95. Secure Cookie flag7
96. RFC7692 Compression Extensions for WebSocket7
97. Alt-Svc header browser support info: consider adding7
98. Feature: Origin-bound one-time codes delivered via SMS7
99. This regards adding support for the navigator.userAgentData7
100. Cannot see |ImageCapture| entry in the web interface.6
101. CSS 3 property: text-autospace and text-spacing6
102. Add `enterkeyhint` attribute ("Enter Key Hint")6
103. Add CSS Values and Units Module Level 4 Mathematical Expressions6
104. add Accessibility Object Model6
105. Geofencing API6
106. Add System Colors item6
107. Add 'require-sri-for' CSP Directive6
108. Add autocorrect, autocapitalize, autocomplete attributes6
109. Flag storage that is not available under private mode6
110. Module Worker support6
111. Audio codec - xHE-AAC / USAC6
112. CSS tag {content: url()}6
113. -ms-overflow-style6
114. Observable6
115. MediaStream Image Capture6
116. Accelerated Shape Detection in Images6
117. Embedded color profiles in JPEG images.6
118. Add `multipart/x-mixed-replace`6
119. USDZ file format6
120. Add Scoped Styles aka. CSS Scoping6
121. WebCrypto Key Discovery6
122. Add Web Share Target API Level 26
123. Add font-palette-values5
124. new CSS trigonometry functions5
125. Support for MHTML5
126. allowtransparency5
127. Add support tables for document.documentElement.clientWidth5
128. Input Events Level 1 and 25
129. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
130. Add ECC certificates5
131. Bundled HTTP Exchanges5
132. Support individual CSP rules5
133. CSS Shaders - 5
134. Please track the various HTTP Set-Cookie options supported by browsers5
135. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
136. Feature: A Well-Known URL for Changing Passwords5
137. roundRect5
138. HTTP Strict Transport Security Preload5
139. Adding Khronos gITF 2.0 for 3D models5
140. Add the `:modal` pseudo-class5
141. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
142. audio / video autoplay attribute and play function5
143. Window Placement API5
144. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
145. CSS page property (for printing)5
146. Add supports() queries on @import5
147. Arithmetic coded JPEG support4
148. Payment Handler API4
149. Popover API4
150. Add "HDR AVIF" image support4
151. CSS image() functional notation (e.g. for background-images etc). See 4
152. Web locks4
153. Add raw sockets API4
154. Add CSS Anchor Positioning4
155. The !important css thing. It's very !important ;).4
156. Screen Capture4
157. [CSS Level 4 pseudo-class] :user-error4
158. New top level domains (TLD)4
159. Add Cookie Store API4
160. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
161. SameParty cookie attribute4
162. Cache-Control 4
163. Add the `<model>` element4
164. Support for Digital Goods API4
165. CSS Round Display4
166. Add IPFS (Interplanetary File System) protocol to Caniuse4
167. JS Self-Profiling API4
168. Input type=email with "multiple" attribute4
169. webp2 support4
170. ::-webkit-file-upload-button4
171. CanIUse OpenSearch4
172. Tracking various WebAuthn features4
173. Support SVG width/height = auto4
174. Support aria-hidden html property4
175. Add Intl.DisplayNames4
176. Add meta "format-detection"4
177. For printing support for the size:landscape option to tell the browser what page orientation we want...4
178. SVG sprites with <symbol> and <use>4
179. Support the W3 Web Annotation standard (W3C Recommendation)4
180. Add Local Font Access API 4
181. getEventListeners not listed3
182. View Transitions API3
183. add window-inactive pseudo-class3
184. Add Array.fromAsync3
185. Web bundles3
186. File Handling API3
187. Add Intl.DurationFormat3
188. Add the HTML focusgroup attribute3
189. Can I Use m4a?3
190. Add Wide Color Gamut in 2D Canvas3
191. CSS multicol data is mixed with fragmentation3
192. Private Click Measurement (PCM)3
193. webkit-calendar-picker-indicator3
194. Accessibility of in-browser PDF Viewer3
195. Add `dynamic-range` media query3
196. justify-content: space-around3
197. CSS view-timeline supports3
198. Add gRPC support3
199. Show ANSI escape code for console.log.3
200. ECMAscript - static properties3
201. Add "page based counters"3
202. Add support for requestSubmit3
203. New browser feature: rest/spread in object literals3
204. Add `WebSocketStream` API3
205. Public class properties3
206. Graphite font support3
207. Support for Geometry Property (SVG 2.0) `r` in CSS3
208. Add support for addHitRegion3
209. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
210. display: table-caption?3
211. place-items shorthand for justify and align3
212. getTotalLength()3
213. filename*=UTF-8''...3
214. Add Media Session API Coverage Information3
215. add iframe.csp3
216. Add information for the webcal and webcals protocols for subscribing to iCalendars3
217. documentMode3
218. track support for the media query feature -ms-high-contrast2
219. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
220. add csp lv2 violation event2
221. console.assert(boolean_expression)2
222. Missing feature: Clipboard API supported mimetypes2
223. support destructuring assignment as separate es feature2
224. Metadata name: HandheldFriendly2
225. Metadata name: MobileOptimized2
226. Support for hrefTranslate2
227. Drag and Drop API - ghost image with customizable opacity2
228. Track adoption of DOMFrameContentLoaded event2
229. SharedMemory/Atomics2
230. rel="ar" support2
231. Add 'animated GIF as favicon'?2
232. Add the Javascript double asterisk power operator (**) to the list of supported features2
233. Animating SVG paths using CSS2
234. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
235. Content-Security-Policy: script-nonce2
236. Add information on context-stroke and context-fill2
237. Add Integrated Windows Authentication2
238. Add Geolocation Sensor2
239. <semantics> element in MathML is not found in caniuse.com2
240. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
241. dns.resolve2
242. HTTP Trailers2
243. Can I use X3D?2
244. WebXR Hand Input Module - Level 12
245. Add chrome.webrequests2
246. Add browser support for toggle()2
247. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
248. video codecs2
249. What about showing support for various link attributes, like "subresource" or "dns-pr...2
250. Add auto-expand `<details>` for find-in-page and fragment navigations2
251. Touch Icons (apple-touch-icon)2
252. Add Fetch upload streaming2
253. Tooltip display on focus2
254. text-space-collapse2
255. A new page for Grid track animation should be added2
256. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
257. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
258. UTF-8 Dingbats2
259. onerror event on iframe2
260. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
261. Input type=range with "multiple" attribute2
262. Support of sms: and mms: in mobile browsers is not clear2
263. Add TPG image file format2
264. Add Date.prototype.toTemporalInstant()2
265. Add "Window Controls Overlay"2
266. x-webkit-speech2
267. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)2
268. stroke-linejoin support2
269. Show which browsers have a native CSV viewer2
270. Add CSS4 Grid structural selectors2
271. Basic Authentication: AuthName directive2
272. CSS touch-action level 2 values2
273. Loading Signed Exchanges2
274. `from-image` as initial value of `image-orientation`2
275. Add support for HTTP header X-Permitted-Cross-Domain-Policies2
276. Support KV Storage build-in module2
277. SVG image auto height2
278. Add PNG cursor2
279. SSML2
280. add captureVisibleTab2
281. Spatial Navigation support2
282. getFilesAndDirectories2
283. SVG symbols in CSS2
284. setTimeout and setInterval callback parameters2
285. Device-Memory Client Hint & navigator.deviceMemory JS API2
286. HTTP immutable responses2
287. add "unicode property escapes"2
288. Support for CSS3 background-repeat-x and background-repeat-y properties2
289. Storage Access API2
290. String.prototype.split() with a regex with grouping ( parentheses ).2
291. EventTarget Constructor2
292. srcset/sizes attribute / picture element support in SVG2
293. Request: IPv6 proxy functions (myIpAddressEx and friends)1
294. Add optional type syntax for JavaScript …maybe eventually1
295. create @Media Types1
296. MPNG1
297. Missing computed property names1
298. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
299. Add: Tracking Preference Expression APIs1
300. Support HTJ2K1
301. Suggestion: support for margin-collapse?1
302. TLS Encrypted Client Hello (ECH)1
303. Add `Notification.prototype​.showTrigger️`1
304. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
305. script tag onerror attribute1
306. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
307. Add CSS Toggles …maybe eventually1
308. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
309. sec-ch-prefers headers1
310. Sec-Ch-wow641
311. Support information for horizontal-viewport-segments and vertical-viewport-segments1
312. IPv6 support in web browsers1
313. Add VisualViewport.segments support data1
314. Video media in image contexts1
315. Add server-timing as a trailer1
316. HTTP Content-encoding: LZFSE1
317. add onstorage1
318. feature request: video/MP2T1
319. <object>.contentWindow Support1
320. Add windows-theme media query selector1
321. Add Container Units aka. Container Relative Lengths1
322. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
323. Add MathML Core1
324. background-composite1
325. Add compatibility data for QuickTime video format1
326. Add Notification Triggers1
327. longdesc attribute support1
328. Add CMYK Color Space1
329. Add Web Neural Network (WebNN)1
330. Feature request: Token Binding Protocol1
331. IETF RFCs1
332. [Feature Policy: sub-feature] Sandbox features1
333. aria-labelledby1
334. CSS Inline Layout1
335. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
336. Character-based alignment in a table column using text-align1
337. Add Capture Handle1
338. Add "Scheduled Task API"1
339. The xml:space attribute1
340. Textarea wrap attribute (off, soft, hard, virtual, physical)1
341. Web monetization1
342. Suggestion: @font-face src OpenType collection support1
343. CAA DNS record1
344. Add selection.getComposedRange() feature check1
345. SVG 2: inline-size property for text1
346. Add support for the HTTP header X-Download-Options1
347. viewport meta tag1
348. WebSerial1
349. How to show support for font-variation-settings within @font-face?1
350. Add `PWA file handlers`1
351. Add block-step-size property for CSS1
352. Please add support data for "CSS property: clip-path: inset()". Thank you!1
353. Refresh1
354. add secure payment confirmation (W3C)1
355. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
356. line-height support and the differences in rendering between webkit&trident and other engines.1
357. Add Gradient Interpolation Color Spaces 1
358. Add Change Array by Copy methods1
359. List support for HTTP/2's PUSH_PROMISE frame1
360. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
361. Playback of videos with alpha channel1
362. Add `font-variant-emoji`1
363. Javascript pseudoprotocol1
364. Add `target="_new"`1
365. Add CSS Scroll Snap Module Level 21
366. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
367. Add Background Blur API1
368. Support data for Unicode flag on HTML pattern attribute1
369. Add Web MIDI 2.0 …maybe eventually1
370. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
371. Chained selectors1
372. MediaStream Recording (1
373. import reflection for WASM1
374. Web intents/Web Activities 1
375. Add `blocking=render`1
376. Add IndexedDB 3.01
377. accesskey attribute on non-focusable elements (should cause a click element to fire1
378. Add Payment Request API 1.11
379. Add tech() function support (in @font-face src)1
380. <meta name="apple-mobile-web-app-capable" content="yes" />1
381. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
382. Support for Unicode and spaces in URL1
383. The event handler window.onscroll is missing1
384. window.localMediaStream is not listed1
385. Can I use windowtext.1
386. please add the onsearch event1
387. CMAF1
388. Add layout-instability support1
389. Add css-timing 1
390. Information about WavPack audio format1
391. InsertKey Behaviour Overwrite/Normal Mode1
392. Internationalized Domain Name1
393. string-set1
394. Add support for svg fill-rule1
395. Add page for relative path in HTTP Location1
396. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
397. x-webkit-airplay1
398. Adding contain-intrinsic-size (suggestion)1
399. Add box-suppress1
400. https mixed mode1
401. Add HTTP_ORIGIN feature1
402. document type1
403. aria-current1
404. Add support for mediacapture-output API's sinkID1
405. Add Range.getBoundingClientRect browser support table1
406. date.toLocaleString support tracking plz?1
407. What is the browser support for the newly proposed "page-orientation" property?1
408. column combination1
409. iframe disallowdocumentaccess property1
410. reflected-xss missing1
411. step property of input field with type datetime-local and time1
412. CSS3 new text-transform keywords1
413. Clean up css-touch-action1
414. Add XSL to caniuse1
415. Use of es6 import statements in workers1
416. Add desynchronized (low latency canvas contexts)1
417. Add support for CSS3 move-to property1
418. @top-left @bottom-center ? can you test for compatibility1
419. support data suggestion: DOM event constructors ?1
420. DownloadURL1
421. SHA2 certificates1
422. Add Support for MPEG-4 Part 2 SP/ASP1
423. add mouse event positions event.offsetX and event.offsetY1
424. Open search autodiscovery1
425. Add "Named function expressions"1
426. Missing `StorageQuota` support1
427. [Suggestion] display: fullscreen1
428. event.path1
429. Add High Resolution Time Level 31
430. OfflineAudioContext1
431. Streams API: transferable streams1
432. performance.measureMemory()1
433. show support for namespacing; for example <svg: namespace 1
434. Add entry for DTLS 1.31
435. requestPostAnimationFrame browser support?1
436. add CSS Extensions meant for renaming1
437. request support for 'accept-charset'1
438. E4X: ECMAScript for XML1
439. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
440. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
441. Add "specifying a color profile: the `@color-profile` at-rule"1
442. missing HTTP TRACE method1
443. Add H2 ORIGIN frame support1
444. Add URL Protocol Handler Registration for PWAs1
445. Add compatibility for FormData1
446. browserconfig.xml support info1
447. SHA1 certificates1
448. baseline-middle1
449. stroke-linecap support1
450. window.watchMedia()1
451. Please add more detailed WebRTC features1
452. Add method1
453. nested calc() and var()1
454. URLSearchParams.prototype.sort1
455. Add: "color" and "background-color" CSS on <option> elements1
456. DeviceOrientation and DeviceMotion events on insecure origins1
457. Drag and Drop API - move constraints1
458. add aria-required to caniuse, if not already there1
459. Audio Output Devices API: wd1
460. Report Retry-After header support1
461. auto Picture-in-Picture1
462. online/offline can also be used as events and are not covered by (only boolean property is covered)1
463. Suggested addition: navigator.cpuClass1
464. Support for Service Worker Life Cycle Events1
465. supported-color-schemes & prefers-color-scheme1
466. device-pixel-content-box for ResizeObserver1
467. No information about the `unselectable` HTML attribute.1
468. Add `::-webkit-details-marker`1
469. Add support information for font metric override descriptors1
470. add micropub1
471. Add a matrix entyre for opentype-with-cff21
472. Add app-region?1
473. Support info for the <track> element1
474. bidi algorithm (for right-to-left Unicode characters)1
475. FLoC support1
476. Add a footnote regarding HTMLAudioElement1
477. Support for calc() in polygon and other shapes1
478. Can you please add the Stack trace API that exists in V81