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. Add HTTP 103 Early Hints57
2. css/svg property dominant-baseline43
3. Suggestion: MediaRecorder.isTypeSupported supported types/codecs41
4. TLS ECH (Encrypted Client Hello), formerly known as ESNI (Encrypted Server Name Indication)38
5. Add support for DNS RRs, like HTTPS and SVCB33
6. + WASM SIMD33
7. Entries for href values including `tel:1234567` and `sms:1234567`32
8. WebExtensions (browser extensions)31
9. Hyphenation Options27
10. Add WebDriver27
11. CSS3 module "Generated Content for Paged Media" and especially the target-counter function26
12. Can I use Reporting API25
13. Show Support for JSON Modules24
14. JavaScript: Tail Call Support information missing23
15. Priority hints API23
16. External import maps22
17. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....21
18. XSLT Support table21
19. Add ES7/2016 SIMD21
20. border-corner-shape21
21. Add CSS Grid Layout Module Level 3 (Masonry!)21
22. Add CSS property `caret-shape` and shorthand `caret`21
23. New feature: CSS Typed Object Model (CSS Typed OM)20
24. Native HTML Switches20
25. device-cmyk css feature19
26. Support constructible stylesheets / adoptedStyleSheets18
27. Add CSS `field-sizing` (previously `form-sizing`)18
28. Geo URI scheme18
29. Page Lifecycle API17
30. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...16
31. Add ShadowRealm API16
32. `content: leader('.');`15
33. Add Webassembly Threads / Threaded Webassembly15
34. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...15
35. Support Intrinsic Size Attribute15
36. ElementInternals/form-associated custom element15
37. [Request] Please add Web Assembly Garbage Collection (WasmGC)14
38. input-security14
39. Color Fonts including SVG-in-OT fonts13
40. Add Web Share Target API13
41. I suggest support for TransferableObject types (of which there are several) 13
42. Add the Popover API (ex: Pop Up API aka. the `popup` attribute plus more)13
43. New feature request: OCSP must-staple13
44. Async iterators / for await of13
45. webM alpha transparency12
46. Soft hyphen: html entity &shy;12
47. Add float: footnote to CSS312
48. CSS Box Alignment Module Level 312
49. Support for SVG's "shape-rendering" CSS property. 12
50. Page-margin boxes (@top-center, etc)12
51. webcl?11
52. Add the `<search>` element11
53. Add caniuse data for Contact Picker API11
54. CSS 3 property: text-autospace and text-spacing11
55. Add the Quite OK Image Format (QOI) …maybe eventually11
56. CSS3 Speech Module Which browsers support it? See11
57. Add WebRTC insertable streams11
58. Add "outline follows border-radius"11
59. Track Intl.Segmenter10
60. Add `WebOTP` to list of apis10
61. caniuse : Constructable Stylesheet10
62. one-time-code10
63. Add Report-To API (Intervention Reports)10
64. Support CSS two-value display syntax10
65. SVG viewport-fill property support10
66. Include `baseline-shift` CSS property10
67. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...10
68. Add CSS Custom Highlight API10
69. Badging API10
70. @font-face descriptors to override font metrics10
71. Add: Webassembly Garbage Collection10
72. Add Web Share Level 210
73. queueMicrotask support10
74. Add "HDR AVIF" image support9
75. HTTP2 Server Push9
76. Tiff image format9
77. List support for the window.fetch keepalive option9
78. Add CSS animation timing function spring()9
79. Cookies: max-age9
80. SVG viewport-fill-opacity property support9
81. Add supported elliptical curves (HTTPS/TLS)9
82. Add SVG `use` with external reference9
83. Quota Management API 9
84. Add Versatile Video Coding (VVC) … somewhen8
85. WebGL extensions8
86. Add text-wrap: pretty8
87. Add CSS property -- `object-view-box`8
88. input[autocomplete] (values besides on/off) 8
89. Add support for @starting-style rule8
90. User-Agent Client Hints (UA-CH)8
91. Add tracking for Explicit Resource Management (`using` and `await using`)8
92. -ms-overflow-style8
93. autocorrect for input fileds7
94. Secure Cookie flag7
95. Add support for Private State Tokens7
96. Audio codec - xHE-AAC / USAC7
97. This regards adding support for the navigator.userAgentData7
98. Add the HTML focusgroup attribute7
99. New feature request: x25519 Key Exchange7
100. Alt-Svc header browser support info: consider adding7
101. Feature: Origin-bound one-time codes delivered via SMS7
102. Add 'require-sri-for' CSP Directive7
103. RFC7692 Compression Extensions for WebSocket7
104. Support for the frame-ancestors directive7
105. Add `multipart/x-mixed-replace`7
106. Add Fetch upload streaming7
107. HTML Modules7
108. Please add "isInputPending()"7
109. Add `WebSocketStream` API7
110. Add support for iterator helpers7
111. Add `enterkeyhint` attribute ("Enter Key Hint")6
112. Add tracking for "Ultra HDR JPG"6
113. USDZ file format6
114. Add ECC certificates6
115. Add Web Neural Network (WebNN)6
116. add Accessibility Object Model6
117. Add System Colors item6
118. CSS tag {content: url()}6
119. Support 'name' attribute on <details> ("Accordion pattern using name attribute on <details> elements")6
120. Accelerated Shape Detection in Images6
121. Observable6
122. Cannot see |ImageCapture| entry in the web interface.6
123. Window Placement API6
124. new CSS trigonometry functions6
125. Flag storage that is not available under private mode6
126. Support for MHTML6
127. WebCrypto Key Discovery6
128. CanIUse OpenSearch6
129. Add Web Share Target API Level 26
130. Geofencing API6
131. Add autocorrect, autocapitalize, autocomplete attributes6
132. WebP & AVIF favicons6
133. MediaStream Image Capture6
134. Add CSS Values and Units Module Level 4 Mathematical Expressions6
135. Embedded color profiles in JPEG images.6
136. Add the `:modal` pseudo-class6
137. Module Worker support6
138. CSS Round Display5
139. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler5
140. Input Events Level 1 and 25
141. Add support tables for document.documentElement.clientWidth5
142. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
143. Adding Khronos gITF 2.0 for 3D models5
144. Tracking various WebAuthn features5
145. Add the `<model>` element5
146. Add IPFS (Interplanetary File System) protocol to Caniuse5
147. Global Privacy Control (GPC) "Sec-GPC" HTTP header5
148. webp2 support5
149. roundRect5
150. Add "page based counters"5
151. JS Self-Profiling API5
152. Add Incremental Font Transfer5
153. add window-inactive pseudo-class5
154. Feature: A Well-Known URL for Changing Passwords5
155. Bundled HTTP Exchanges5
156. Add font-palette-values5
157. Support individual CSP rules5
158. Popover API5
159. Add Intl.DurationFormat5
160. Payment Handler API5
161. Add raw sockets API5
162. Add supports() queries on @import5
163. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
164. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...5
165. Add HTTP method: QUERY5
166. Add "CICP in images"5
167. HTTP Strict Transport Security Preload5
168. Please track the various HTTP Set-Cookie options supported by browsers5
169. CSS Shaders - 5
170. audio / video autoplay attribute and play function5
171. Input type=email with "multiple" attribute5
172. Support for Digital Goods API4
173. Add Local Font Access API 4
174. Add support for passwordrules input attribute4
175. Support for Geometry Property (SVG 2.0) `r` in CSS4
176. Graphite font support4
177. Support aria-hidden html property4
178. File Handling API4
179. Add gRPC support4
180. SameParty cookie attribute4
181. [CSS Level 4 pseudo-class] :user-error4
182. Add Cookie Store API4
183. Web locks4
184. Support information for horizontal-viewport-segments and vertical-viewport-segments4
185. Support SVG width/height = auto4
186. SVG sprites with <symbol> and <use>4
187. webkit-calendar-picker-indicator4
188. filename*=UTF-8''...4
189. Cache-Control 4
190. Track the status of the JavaScript Promise Integration specification4
191. Add Intl.DisplayNames4
192. Add meta "format-detection"4
193. X25519Kyber768 Hybrid Post-Quantum Key Exchange for HTTPS4
194. Snap Events: scrollsnapchange and scrollsnapchanging4
195. documentMode4
196. Screen Capture4
197. The !important css thing. It's very !important ;).4
198. Add Media Session API Coverage Information4
199. New top level domains (TLD)4
200. CSS image() functional notation (e.g. for background-images etc). See 4
201. Accessibility of in-browser PDF Viewer4
202. Support Experimental "ES Pipe Operator (|>)"4
203. ::-webkit-file-upload-button4
204. Support the W3 Web Annotation standard (W3C Recommendation)4
205. Add Invokers, currently `invoketarget` & `invokeaction`4
206. Arithmetic coded JPEG support4
207. Add server-timing as a trailer4
208. For printing support for the size:landscape option to tell the browser what page orientation we want...4
209. Let's add a page for box alignment3
210. Add Wide Color Gamut in 2D Canvas3
211. Add "Window Controls Overlay"3
212. Add support for HTTP header X-Permitted-Cross-Domain-Policies3
213. No information about the `unselectable` HTML attribute.3
214. New browser feature: rest/spread in object literals3
215. Add CMYK Color Space3
216. Video media in image contexts3
217. add iframe.csp3
218. video codecs3
219. Web bundles3
220. justify-content: space-around3
221. Public class properties3
222. CSS view-timeline supports3
223. Add `dynamic-range` media query3
224. Missing feature: Clipboard API supported mimetypes3
225. Show ANSI escape code for console.log.3
226. Support for CSS3 background-repeat-x and background-repeat-y properties3
227. Private Click Measurement (PCM)3
228. CSS multicol data is mixed with fragmentation3
229. Add support for requestSubmit3
230. Support new global attribute: writingsuggestions3
231. Add support for addHitRegion3
232. place-items shorthand for justify and align3
233. Content-Security-Policy: script-nonce3
234. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
235. Add 'animated GIF as favicon'?3
236. IPv6 support in web browsers3
237. display: table-caption?3
238. getEventListeners not listed3
239. Can I Use m4a?3
240. Safe Assignment Operator3
241. Add "Responsive Video" aka. `media` attribute for `<source>` element in `<video>`3
242. Add information for the webcal and webcals protocols for subscribing to iCalendars3
243. ECMAscript - static properties3
244. text-space-collapse2
245. x-webkit-speech2
246. What about showing support for various link attributes, like "subresource" or "dns-pr...2
247. Add Geolocation Sensor2
248. rel="ar" support2
249. Add Date.prototype.toTemporalInstant()2
250. Add information on context-stroke and context-fill2
251. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
252. Add Integrated Windows Authentication2
253. Add browser support for toggle()2
254. Add the Javascript double asterisk power operator (**) to the list of supported features2
255. add RTSP and RTSP 2.0 (Real Time Streaming Protocol)2
256. Add "Scheduled Task API"2
257. Metadata name: MobileOptimized2
258. stroke-linejoin support2
259. Please add more detailed WebRTC features2
260. Show which browsers have a native CSV viewer2
261. Add `letter-spacing` support for percentage values2
262. Add chrome.webrequests2
263. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
264. <semantics> element in MathML is not found in caniuse.com2
265. WebXR Hand Input Module - Level 12
266. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...2
267. Support for hrefTranslate2
268. Metadata name: HandheldFriendly2
269. A new page for Grid track animation should be added2
270. `from-image` as initial value of `image-orientation`2
271. UTF-8 Dingbats2
272. support destructuring assignment as separate es feature2
273. Add VisualViewport.segments support data2
274. Request: nav-up, nav-down, nav-left, nav-right css3 properties2
275. Add Container Units aka. Container Relative Lengths2
276. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)2
277. Input type=range with "multiple" attribute2
278. track support for the media query feature -ms-high-contrast2
279. Support of sms: and mms: in mobile browsers is not clear2
280. Track adoption of DOMFrameContentLoaded event2
281. Touch Icons (apple-touch-icon)2
282. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
283. Tooltip display on focus2
284. SSML2
285. console.assert(boolean_expression)2
286. viewport meta tag2
287. add "unicode property escapes"2
288. Add HTTP_ORIGIN feature2
289. EventTarget Constructor2
290. Add block-step-size property for CSS2
291. add secure payment confirmation (W3C)2
292. Spatial Navigation support2
293. CSS word-break: 'auto-phrase' and 'manual'2
294. SharedMemory/Atomics2
295. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
296. DNS-over-HTTPS (DoH)2
297. Add PNG cursor2
298. Drag and Drop API - ghost image with customizable opacity2
299. add csp lv2 violation event2
300. Add TPG image file format2
301. add captureVisibleTab2
302. CSS touch-action level 2 values2
303. srcset/sizes attribute / picture element support in SVG2
304. String.prototype.split() with a regex with grouping ( parentheses ).2
305. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format2
306. getFilesAndDirectories2
307. SVG symbols in CSS2
308. setTimeout and setInterval callback parameters2
309. Device-Memory Client Hint & navigator.deviceMemory JS API2
310. HTTP immutable responses2
311. Add app-region?2
312. Storage Access API2
313. SVG image auto height2
314. View Transitions Module Level 22
315. Support KV Storage build-in module2
316. HTTP Trailers2
317. Add CSS4 Grid structural selectors2
318. Loading Signed Exchanges2
319. Basic Authentication: AuthName directive2
320. onerror event on iframe2
321. Can I use X3D?2
322. Animating SVG paths using CSS2
323. dns.resolve2
324. Add auto-expand `<details>` for find-in-page and fragment navigations2
325. Add Device Posture API (formerly Screen Fold API)1
326. Add Web Preferences API …maybe eventually1
327. mediacapture-region1
328. MPNG1
329. Add standalone MathML files in MML format1
330. Content-Security-Policy: navigate-to1
331. prefers-reduced-transparency CSS Media Query1
332. Adding Managed Media Source1
333. Support HTJ2K1
334. TLS Encrypted Client Hello (ECH)1
335. Add Background Blur API1
336. `border-color: currentColor;`1
337. Add IndexedDB 3.01
338. CSS property media-controls-panel1
339. Add variable units1
340. udp: add feature1
341. Add tracking for ASTC hdr profile1
342. Add `new Intl.DateTimeFormat().resolvedOptions().hour12`1
343. Support for CSS Color Module Level 51
344. import reflection for WASM1
345. Add WICG/compression-dictionary-transport1
346. Add URL.canParse()1
347. Add Memory64 browser feature1
348. Add `@font-feature-values`1
349. Opus: Need data for MP4 and WebM containers1
350. Add Web MIDI 2.0 …maybe eventually1
351. Add "Scoped Custom Element Registry" as it is now behind an experimental feature flag in Chrome1
352. Add WebDriver BiDi1
353. Add `blocking=render`1
354. Add `:local-link` pseudo selector1
355. Add `Notification.prototype​.showTrigger️`1
356. Add optional type syntax for JavaScript …maybe eventually1
357. CAA DNS record1
358. Add Isolated Web Apps (IWAs)1
359. WebSerial1
360. SVG 2: inline-size property for text1
361. Browser support for Running elements1
362. Add selection.getComposedRange() feature check1
363. Add `font-variant-emoji`1
364. Suggestion: @font-face src OpenType collection support1
365. Add `target="_new"`1
366. Web monetization1
367. 32-bit HDR PNG1
368. Add CSS `@property`1
369. Add Capture Handle1
370. Please add TLS certificate algorithms to caniuse1
371. Feature request: tc39 Explicit Resource Management1
372. Add `PWA file handlers`1
373. viewport-fit1
374. Add CSS Scroll Snap Module Level 21
375. CSS generated images: Stripes1
376. Add tech() function support (in @font-face src)1
377. Support of webkitAudioDecodedByteCount1
378. Add Change Array by Copy methods1
379. Add Gradient Interpolation Color Spaces 1
380. Add `@supports at-rule`1
381. Add CSS Toggles …maybe eventually1
382. Add Payment Request API 1.11
383. Please add support data for "CSS property: clip-path: inset()". Thank you!1
384. Sec-Ch-wow641
385. sec-ch-prefers headers1
386. 'font-size' descriptor for '@font-face'1
387. Playback of videos with alpha channel1
388. Support for VSR (Video Super Resolution) on Nvidia and Intel GPUs1
389. Add Web Translation API …maybe eventually1
390. Add "method of opting into following the visual order", currently `focus-order` …maybe eventually1
391. X.509 Name Constraints1
392. Audio format: AC-3, eac31
393. <object>.contentWindow Support1
394. Add Notification Triggers1
395. SHA1 certificates1
396. string-set1
397. Internationalized Domain Name1
398. column combination1
399. SHA2 certificates1
400. event.path1
401. Add "Named function expressions"1
402. Open search autodiscovery1
403. add mouse event positions event.offsetX and event.offsetY1
404. reflected-xss missing1
405. Add XSL to caniuse1
406. Add support for CSS3 move-to property1
407. Missing `StorageQuota` support1
408. aria-labelledby1
409. Add support for the HTTP header X-Download-Options1
410. document type1
411. add micropub1
412. support data suggestion: DOM event constructors ?1
413. [Suggestion] display: fullscreen1
414. Add High Resolution Time Level 31
415. Add css-timing 1
416. aria-current1
417. add aria-required to caniuse, if not already there1
418. URLSearchParams.prototype.sort1
419. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
420. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
421. Chained selectors1
422. Javascript pseudoprotocol1
423. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
424. Support for Unicode and spaces in URL1
425. Add box-suppress1
426. Add Range.getBoundingClientRect browser support table1
427. HTTP Content-encoding: LZFSE1
428. IETF RFCs1
429. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
430. Textarea wrap attribute (off, soft, hard, virtual, physical)1
431. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
432. <meta name="apple-mobile-web-app-capable" content="yes" />1
433. accesskey attribute on non-focusable elements (should cause a click element to fire1
434. MediaStream Recording (1
435. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
436. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
437. script tag onerror attribute1
438. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
439. create @Media Types1
440. longdesc attribute support1
441. CSS Inline Layout1
442. Feature request: Token Binding Protocol1
443. DeviceOrientation and DeviceMotion events on insecure origins1
444. add onstorage1
445. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
446. Add windows-theme media query selector1
447. window.localMediaStream is not listed1
448. The xml:space attribute1
449. show support for namespacing; for example <svg: namespace 1
450. Add Object.prototype.watch method1
451. browserconfig.xml support info1
452. request support for 'accept-charset'1
453. add CSS Extensions meant for renaming1
454. Add a footnote regarding HTMLAudioElement1
455. Support info for the <track> element1
456. Drag and Drop API - move constraints1
457. Audio Output Devices API: wd1
458. Support data for Unicode flag on HTML pattern attribute1
459. Suggestion: support for margin-collapse?1
460. Add compatibility data for QuickTime video format1
461. bidi algorithm (for right-to-left Unicode characters)1
462. What is the browser support for the newly proposed "page-orientation" property?1
463. Add layout-instability support1
464. Information about WavPack audio format1
465. InsertKey Behaviour Overwrite/Normal Mode1
466. Add support for svg fill-rule1
467. CMAF1
468. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
469. Adding contain-intrinsic-size (suggestion)1
470. Streams API: transferable streams1
471. iframe disallowdocumentaccess property1
472. performance.measureMemory()1
473. auto Picture-in-Picture1
474. Add support information for font metric override descriptors1
475. FLoC support1
476. Add Support for MPEG-4 Part 2 SP/ASP1
477. Add `::-webkit-details-marker`1
478. Add: "color" and "background-color" CSS on <option> elements1
479. Add URL Protocol Handler Registration for PWAs1
480. requestPostAnimationFrame browser support?1
481. E4X: ECMAScript for XML1
482. Add `media` attribute for `<meta>` element (for `<meta name="theme-color">`)1
483. Add "specifying a color profile: the `@color-profile` at-rule"1
484. missing HTTP TRACE method1
485. Add entry for DTLS 1.31
486. Can you please add the Stack trace API that exists in V81
487. stroke-linecap support1
488. nested calc() and var()1
489. feature request: video/MP2T1
490. Add MathML Core1
491. x-webkit-airplay1
492. @top-left @bottom-center ? can you test for compatibility1
493. Add: Tracking Preference Expression APIs1
494. OfflineAudioContext1
495. Missing computed property names1
496. Character-based alignment in a table column using text-align1
497. [Feature Policy: sub-feature] Sandbox features1
498. window.watchMedia()1
499. Add compatibility for FormData1
500. Add H2 ORIGIN frame support1
501. Add a matrix entyre for opentype-with-cff21
502. Support for Service Worker Life Cycle Events1
503. Suggested addition: navigator.cpuClass1
504. online/offline can also be used as events and are not covered by caniuse.com (only boolean property is covered)1
505. Report Retry-After header support1
506. date.toLocaleString support tracking plz?1
507. https mixed mode1
508. Add page for relative path in HTTP Location1
509. DownloadURL1
510. Add desynchronized (low latency canvas contexts)1
511. Use of es6 import statements in workers1
512. CSS3 new text-transform keywords1
513. step property of input field with type datetime-local and time1
514. please add the onsearch event1
515. supported-color-schemes & prefers-color-scheme1
516. line-height support and the differences in rendering between webkit&trident and other engines.1
517. Refresh1
518. How to show support for font-variation-settings within @font-face?1
519. The event handler window.onscroll is missing1
520. baseline-middle1
521. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
522. Support for calc() in polygon and other shapes1
523. Request: IPv6 proxy functions (myIpAddressEx and friends)1
524. Clean up css-touch-action1
525. Add caret-animation1