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: zstd62
2. Add HTTP 103 Early Hints47
3. Add CSS Color Module Level 5 (color-mix(), color-contrast(), Relative color)44
4. css/svg property dominant-baseline41
5. Add support table for CSP 3.0 compliance34
6. text-wrap34
7. Add customizable select element, currently `<selectmenu>`31
8. Suggestion: MediaRecorder.isTypeSupported supported types/codecs31
9. Entries for href values including `tel:1234567` and `sms:1234567`28
10. Hyphenation Options26
11. + WASM SIMD26
12. Can I use Reporting API24
13. Add WebDriver24
14. Priority hints API23
15. CSS3 module "Generated Content for Paged Media" and especially the target-counter function23
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. Show Support for JSON Modules21
20. JavaScript: Tail Call Support information missing20
21. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....20
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. border-corner-shape17
27. device-cmyk css feature17
28. Page Lifecycle API16
29. ElementInternals/form-associated custom element15
30. Support Intrinsic Size Attribute15
31. `content: leader('.');`15
32. Add support for DNS RRs, like HTTPS and SVCB14
33. Add CSS property `caret-shape` and shorthand `caret`14
34. I suggest support for TransferableObject types (of which there are several) 13
35. input-security13
36. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
37. Geo URI scheme13
38. Async iterators / for await of13
39. Add Web Share Target API12
40. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
41. Soft hyphen: html entity &shy;12
42. Add passkeys12
43. Color Fonts including SVG-in-OT fonts12
44. New feature request: OCSP must-staple12
45. Support for SVG's "shape-rendering" CSS property. 11
46. CSS3 Speech Module Which browsers support it? See11
47. Add WebRTC insertable streams11
48. webcl?11
49. Add float: footnote to CSS311
50. Add Webassembly Threads / Threaded Webassembly11
51. caniuse : Constructable Stylesheet10
52. Track Intl.Segmenter10
53. one-time-code10
54. Include `baseline-shift` CSS property10
55. queueMicrotask support10
56. Add Report-To API (Intervention Reports)10
57. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...10
58. @font-face descriptors to override font metrics10
59. webM alpha transparency10
60. CSS Box Alignment Module Level 310
61. Add caniuse data for Contact Picker API10
62. Add Web Share Level 210
63. HTTP2 Server Push9
64. Support CSS two-value display syntax9
65. Add CSS animation timing function spring()9
66. Add the Quite OK Image Format (QOI) …maybe eventually9
67. Cookies: max-age9
68. List support for the window.fetch keepalive option9
69. Quota Management API 9
70. External import maps9
71. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more)9
72. Add SVG `use` with external reference8
73. Add supported elliptical curves (HTTPS/TLS)8
74. Add "outline follows border-radius"8
75. Page-margin boxes (@top-center, etc)8
76. Add ShadowRealm API8
77. Badging API8
78. SVG viewport-fill property support8
79. SVG viewport-fill-opacity property support8
80. WebGL extensions8
81. Page Transitions8
82. Please add "isInputPending()"7
83. User-Agent Client Hints (UA-CH)7
84. HTML Modules7
85. Alt-Svc header browser support info: consider adding7
86. New feature request: x25519 Key Exchange7
87. Feature: Origin-bound one-time codes delivered via SMS7
88. Add `WebOTP` to list of apis7
89. autocorrect for input fileds7
90. Tiff image format7
91. This regards adding support for the navigator.userAgentData7
92. Add CSS Custom Highlight API7
93. input[autocomplete] (values besides on/off) 7
94. Support for the frame-ancestors directive7
95. RFC7692 Compression Extensions for WebSocket7
96. Secure Cookie flag7
97. Module Worker support6
98. Add Versatile Video Coding (VVC) … somewhen6
99. Audio codec - xHE-AAC / USAC6
100. Add 'require-sri-for' CSP Directive6
101. Add `multipart/x-mixed-replace`6
102. Cannot see |ImageCapture| entry in the web interface.6
103. WebCrypto Key Discovery6
104. Geofencing API6
105. Add Web Share Target API Level 26
106. CSS 3 property: text-autospace and text-spacing6
107. CSS tag {content: url()}6
108. Add CSS Values and Units Module Level 4 Mathematical Expressions6
109. Embedded color profiles in JPEG images.6
110. Accelerated Shape Detection in Images6
111. Add `enterkeyhint` attribute ("Enter Key Hint")6
112. Add System Colors item6
113. Observable6
114. USDZ file format6
115. Flag storage that is not available under private mode6
116. Add autocorrect, autocapitalize, autocomplete attributes6
117. Add CSS module script/CSS modules6
118. -ms-overflow-style6
119. MediaStream Image Capture6
120. Add support for Trust Tokens API6
121. Support individual CSP rules5
122. Add supports() queries on @import5
123. Input Events Level 1 and 25
124. allowtransparency5
125. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
126. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
127. Add font-palette-values5
128. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
129. new CSS trigonometry functions5
130. Add support tables for document.documentElement.clientWidth5
131. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
132. Bundled HTTP Exchanges5
133. CSS page property (for printing)5
134. Support for MHTML5
135. Add ECC certificates5
136. Adding Khronos gITF 2.0 for 3D models5
137. add Accessibility Object Model5
138. Please track the various HTTP Set-Cookie options supported by browsers5
139. CSS Shaders - 5
140. roundRect5
141. Feature: A Well-Known URL for Changing Passwords5
142. audio / video autoplay attribute and play function5
143. Window Placement API5
144. HTTP Strict Transport Security Preload5
145. Global Privacy Control (GPC) "Sec-GPC" HTTP header4
146. The !important css thing. It's very !important ;).4
147. For printing support for the size:landscape option to tell the browser what page orientation we want...4
148. Screen Capture4
149. Add raw sockets API4
150. Add Scoped Styles aka. CSS Scoping4
151. Add the `<model>` element4
152. JS Self-Profiling API4
153. Web locks4
154. Support aria-hidden html property4
155. Payment Handler API4
156. Arithmetic coded JPEG support4
157. CSS image() functional notation (e.g. for background-images etc). See 4
158. Tracking various WebAuthn features4
159. ::-webkit-file-upload-button4
160. CSS Round Display4
161. CanIUse OpenSearch4
162. Add IPFS (Interplanetary File System) protocol to Caniuse4
163. Add Cookie Store API4
164. Add Intl.DisplayNames4
165. Support SVG width/height = auto4
166. Add the `:modal` pseudo-class4
167. [CSS Level 4 pseudo-class] :user-error4
168. SVG sprites with <symbol> and <use>4
169. Support the W3 Web Annotation standard (W3C Recommendation)4
170. Input type=email with "multiple" attribute4
171. New top level domains (TLD)4
172. Cache-Control 4
173. Add meta "format-detection"4
174. Support for Digital Goods API4
175. webp2 support4
176. SameParty cookie attribute4
177. add iframe.csp3
178. display: table-caption?3
179. justify-content: space-around3
180. Add "page based counters"3
181. CSS multicol data is mixed with fragmentation3
182. place-items shorthand for justify and align3
183. Add Local Font Access API 3
184. Web bundles3
185. Show ANSI escape code for console.log.3
186. Private Click Measurement (PCM)3
187. Add `dynamic-range` media query3
188. Can I Use m4a?3
189. webkit-calendar-picker-indicator3
190. Add `WebSocketStream` API3
191. add window-inactive pseudo-class3
192. getEventListeners not listed3
193. ECMAscript - static properties3
194. Add CSS Anchor Positioning3
195. Add support for requestSubmit3
196. Public class properties3
197. Add Wide Color Gamut in 2D Canvas3
198. Add gRPC support3
199. getTotalLength()3
200. File Handling API3
201. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
202. New browser feature: rest/spread in object literals3
203. CSS view-timeline supports3
204. Add the HTML focusgroup attribute3
205. Add Media Session API Coverage Information3
206. Add support for addHitRegion3
207. documentMode3
208. Add information for the webcal and webcals protocols for subscribing to iCalendars3
209. Graphite font support3
210. Add "HDR AVIF" image support3
211. Accessibility of in-browser PDF Viewer3
212. EventTarget Constructor2
213. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
214. Storage Access API2
215. Support KV Storage build-in module2
216. track support for the media query feature -ms-high-contrast2
217. Show which browsers have a native CSV viewer2
218. Add the Javascript double asterisk power operator (**) to the list of supported features2
219. support destructuring assignment as separate es feature2
220. rel="ar" support2
221. Add Geolocation Sensor2
222. WebXR Hand Input Module - Level 12
223. Add information on context-stroke and context-fill2
224. Add Integrated Windows Authentication2
225. Loading Signed Exchanges2
226. Metadata name: MobileOptimized2
227. Support for hrefTranslate2
228. Missing feature: Clipboard API supported mimetypes2
229. <semantics> element in MathML is not found in caniuse.com2
230. add "unicode property escapes"2
231. stroke-linejoin support2
232. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
233. Track adoption of DOMFrameContentLoaded event2
234. dns.resolve2
235. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)2
236. Add Date.prototype.toTemporalInstant()2
237. Spatial Navigation support2
238. text-space-collapse2
239. Add chrome.webrequests2
240. Content-Security-Policy: script-nonce2
241. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
242. SharedMemory/Atomics2
243. Add 'animated GIF as favicon'?2
244. console.assert(boolean_expression)2
245. A new page for Grid track animation should be added2
246. Drag and Drop API - ghost image with customizable opacity2
247. HTTP Trailers2
248. Animating SVG paths using CSS2
249. onerror event on iframe2
250. Can I use X3D?2
251. Basic Authentication: AuthName directive2
252. Add CSS4 Grid structural selectors2
253. Tooltip display on focus2
254. Add support for HTTP header X-Permitted-Cross-Domain-Policies2
255. x-webkit-speech2
256. Add Fetch upload streaming2
257. filename*=UTF-8''...2
258. Support of sms: and mms: in mobile browsers is not clear2
259. Input type=range with "multiple" attribute2
260. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
261. UTF-8 Dingbats2
262. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
263. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
264. Touch Icons (apple-touch-icon)2
265. What about showing support for various link attributes, like "subresource" or "dns-pr...2
266. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
267. Add browser support for toggle()2
268. video codecs2
269. CSS touch-action level 2 values2
270. `from-image` as initial value of `image-orientation`2
271. getFilesAndDirectories2
272. String.prototype.split() with a regex with grouping ( parentheses ).2
273. Add TPG image file format2
274. SVG image auto height2
275. Metadata name: HandheldFriendly2
276. add csp lv2 violation event2
277. add captureVisibleTab2
278. HTTP immutable responses2
279. Add PNG cursor2
280. Device-Memory Client Hint & navigator.deviceMemory JS API2
281. setTimeout and setInterval callback parameters2
282. SSML2
283. SVG symbols in CSS2
284. srcset/sizes attribute / picture element support in SVG2
285. Add "Window Controls Overlay"2
286. Support for CSS3 background-repeat-x and background-repeat-y properties2
287. nested calc() and var()1
288. Add tech() function support (in @font-face src)1
289. Please add more detailed WebRTC features1
290. Add Notification Triggers1
291. Add Payment Request API 1.11
292. Add IndexedDB 3.01
293. Add `blocking=render`1
294. bidi algorithm (for right-to-left Unicode characters)1
295. No information about the `unselectable` HTML attribute.1
296. Add support information for font metric override descriptors1
297. Add CMYK Color Space1
298. device-pixel-content-box for ResizeObserver1
299. Add auto-expand `<details>` for find-in-page and fragment navigations1
300. Playback of videos with alpha channel1
301. Add `PWA file handlers`1
302. Web monetization1
303. Suggestion: @font-face src OpenType collection support1
304. CAA DNS record1
305. Add compatibility data for QuickTime video format1
306. Add selection.getComposedRange() feature check1
307. Add MathML Core1
308. Add Container Units aka. Container Relative Lengths1
309. SVG 2: inline-size property for text1
310. Can I use windowtext.1
311. import reflection for WASM1
312. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
313. stroke-linecap support1
314. Sec-Ch-wow641
315. Add "specifying a color profile: the `@color-profile` at-rule"1
316. missing HTTP TRACE method1
317. Support HTJ2K1
318. Add entry for DTLS 1.31
319. E4X: ECMAScript for XML1
320. TLS Encrypted Client Hello (ECH)1
321. Add optional type syntax for JavaScript …maybe eventually1
322. Add `Notification.prototype​.showTrigger️`1
323. Add server-timing as a trailer1
324. requestPostAnimationFrame browser support?1
325. Add CSS Toggles …maybe eventually1
326. Add URL Protocol Handler Registration for PWAs1
327. sec-ch-prefers headers1
328. Support information for horizontal-viewport-segments and vertical-viewport-segments1
329. Add Web Neural Network (WebNN)1
330. Add VisualViewport.segments support data1
331. feature request: video/MP2T1
332. Add: "color" and "background-color" CSS on <option> elements1
333. Add "Scheduled Task API"1
334. Add `::-webkit-details-marker`1
335. Add `font-variant-emoji`1
336. Add `target="_new"`1
337. Add CSS Scroll Snap Module Level 21
338. FLoC support1
339. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
340. Add Background Blur API1
341. MPNG1
342. Can you please add the Stack trace API that exists in V81
343. Add Web MIDI 2.0 …maybe eventually1
344. Add Capture Handle1
345. [Feature Policy: sub-feature] Sandbox features1
346. auto Picture-in-Picture1
347. Add "Named function expressions"1
348. Audio Output Devices API: wd1
349. DeviceOrientation and DeviceMotion events on insecure origins1
350. Add Range.getBoundingClientRect browser support table1
351. Add support for mediacapture-output API's sinkID1
352. document type1
353. Add HTTP_ORIGIN feature1
354. Add box-suppress1
355. string-set1
356. Internationalized Domain Name1
357. column combination1
358. SHA2 certificates1
359. event.path1
360. Open search autodiscovery1
361. Support info for the <track> element1
362. add mouse event positions event.offsetX and event.offsetY1
363. reflected-xss missing1
364. Add XSL to caniuse1
365. Add support for CSS3 move-to property1
366. Missing `StorageQuota` support1
367. aria-labelledby1
368. SHA1 certificates1
369. Add support for the HTTP header X-Download-Options1
370. add micropub1
371. support data suggestion: DOM event constructors ?1
372. [Suggestion] display: fullscreen1
373. Add High Resolution Time Level 31
374. Drag and Drop API - move constraints1
375. Add a footnote regarding HTMLAudioElement1
376. aria-current1
377. create @Media Types1
378. line-height support and the differences in rendering between webkit&trident and other engines.1
379. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
380. Textarea wrap attribute (off, soft, hard, virtual, physical)1
381. Web intents/Web Activities 1
382. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
383. <meta name="apple-mobile-web-app-capable" content="yes" />1
384. accesskey attribute on non-focusable elements (should cause a click element to fire1
385. MediaStream Recording (1
386. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
387. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
388. script tag onerror attribute1
389. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
390. longdesc attribute support1
391. add CSS Extensions meant for renaming1
392. CSS Inline Layout1
393. IETF RFCs1
394. Feature request: Token Binding Protocol1
395. add onstorage1
396. background-composite1
397. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
398. Add windows-theme media query selector1
399. window.localMediaStream is not listed1
400. The xml:space attribute1
401. show support for namespacing; for example <svg: namespace 1
402. Add method1
403. browserconfig.xml support info1
404. request support for 'accept-charset'1
405. Add css-timing 1
406. add aria-required to caniuse, if not already there1
407. performance.measureMemory()1
408. Add desynchronized (low latency canvas contexts)1
409. step property of input field with type datetime-local and time1
410. please add the onsearch event1
411. supported-color-schemes & prefers-color-scheme1
412. <object>.contentWindow Support1
413. Refresh1
414. How to show support for font-variation-settings within @font-face?1
415. The event handler window.onscroll is missing1
416. baseline-middle1
417. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
418. Support for calc() in polygon and other shapes1
419. Request: IPv6 proxy functions (myIpAddressEx and friends)1
420. Clean up css-touch-action1
421. @top-left @bottom-center ? can you test for compatibility1
422. Use of es6 import statements in workers1
423. Add Support for MPEG-4 Part 2 SP/ASP1
424. x-webkit-airplay1
425. What is the browser support for the newly proposed "page-orientation" property?1
426. Add layout-instability support1
427. Information about WavPack audio format1
428. InsertKey Behaviour Overwrite/Normal Mode1
429. Add support for svg fill-rule1
430. CMAF1
431. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
432. Adding contain-intrinsic-size (suggestion)1
433. Streams API: transferable streams1
434. iframe disallowdocumentaccess property1
435. CSS3 new text-transform keywords1
436. DownloadURL1
437. Add app-region?1
438. Suggestion: support for margin-collapse?1
439. URLSearchParams.prototype.sort1
440. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
441. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
442. Video media in image contexts1
443. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
444. Chained selectors1
445. Javascript pseudoprotocol1
446. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
447. Support for Unicode and spaces in URL1
448. Support data for Unicode flag on HTML pattern attribute1
449. HTTP Content-encoding: LZFSE1
450. IPv6 support in web browsers1
451. Add: Tracking Preference Expression APIs1
452. OfflineAudioContext1
453. Missing computed property names1
454. Character-based alignment in a table column using text-align1
455. window.watchMedia()1
456. Add compatibility for FormData1
457. Add H2 ORIGIN frame support1
458. Add a matrix entyre for opentype-with-cff21
459. Support for Service Worker Life Cycle Events1
460. Suggested addition: navigator.cpuClass1
461. online/offline can also be used as events and are not covered by (only boolean property is covered)1
462. Report Retry-After header support1
463. date.toLocaleString support tracking plz?1
464. https mixed mode1
465. Add page for relative path in HTTP Location1
466. viewport meta tag1