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. vector-effect31
2. Add support table for CSP 3.0 compliance27
3. HTTP content-encoding: zstd27
4. Suggestion: MediaRecorder.isTypeSupported supported types/codecs25
5. valueAsDate usage23
6. Support JavaScript Class and Property Decorators (ES Stage 2 Draft)23
7. window.onerror - / - particularly mobile browser support23
8. css/svg property dominant-baseline22
9. Can I use Reporting API22
10. Add WebDriver22
11. form input property "valueAsNumber"22
12. Add ES7/2016 SIMD20
13. text-wrap20
14. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....18
15. Add lab() and lch() from CSS Color Module Level 418
16. Priority hints API18
17. CSS3 module "Generated Content for Paged Media" and especially the target-counter function18
18. Entries for href values including `tel:1234567` and `sms:1234567`18
19. XSLT Support table17
20. JavaScript: Tail Call Support information missing17
21. Hyphenation Options17
22. New feature: CSS Typed Object Model (CSS Typed OM)17
23. Add HTTP 103 Early Hints16
24. WebExtensions (browser extensions)16
25. Support Intrinsic Size Attribute15
26. border-corner-shape15
27. ESNI (Encrypted Server Name Indication)15
28. Support constructible stylesheets / adoptedStyleSheets14
29. Add CSS Grid Layout Module Level 3 (Masonry!)14
30. Page Lifecycle API14
31. device-cmyk css feature14
32. Add hwb() CSS function13
33. `content: leader('.');`13
34. Add beforeinput event13
35. Add Media Queries Ranges13
36. <video> `playsinline` attribute13
37. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
38. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
39. Add CSS Color Module Level 5 (color-adjust(), color-mix(), color-contrast())12
40. I suggest support for TransferableObject types (of which there are several) 12
41. text-security missing in list of features12
42. Color Fonts including SVG-in-OT fonts11
43. Soft hyphen: html entity &shy;11
44. webcl?11
45. Async iterators / for await of11
46. Geo URI scheme11
47. CSS Box Alignment Module Level 310
48. Add Report-To API (Intervention Reports)10
49. Paint Timing API10
50. Add CSS Nesting10
51. Quota Management API 9
52. Please add iFrame element contentWindow property9
53. New feature request: OCSP must-staple9
54. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
55. + WASM SIMD9
56. Support for SVG's "shape-rendering" CSS property. 9
57. queueMicrotask support9
58. CSS3 Speech Module Which browsers support it? See9
59. Cookies: max-age9
60. webM alpha transparency8
61. Add float: footnote to CSS38
62. Add CSS animation timing function spring()8
63. List support for the window.fetch keepalive option8
64. ElementInternals/form-associated custom element8
65. Include `baseline-shift` CSS property8
66. Add Web Share Target API7
67. SVG viewport-fill-opacity property support7
68. SVG viewport-fill property support7
69. caniuse : Constructable Stylesheet7
70. HTTP2 Server Push7
71. Please add "isInputPending()"7
72. WebGL extensions7
73. Add supported elliptical curves (HTTPS/TLS)7
74. Add Web Share Level 27
75. 'imagesizes' & 'imagesrcset' for <link rel="preload">7
76. Multicolor Glyph support (COLR/CPAL)7
77. Badging API7
78. Support for the frame-ancestors directive7
79. Add support for the __Host- and __Secure-7
80. Alt-Svc header browser support info: consider adding7
81. input[autocomplete] (values besides on/off) 7
82. @font-face descriptors to override font metrics7
83. Add SVG `use` with external reference7
84. RFC7692 Compression Extensions for WebSocket7
85. Add `multipart/x-mixed-replace`6
86. WebTransport6
87. Add enterkeyhint attribute ("Enter Key Hint")6
88. Secure Cookie flag6
89. HTML Modules6
90. Add caniuse data for Contact Picker API6
91. Flag storage that is not available under private mode6
92. Fetch Metadata Request Headers6
93. Add save-data client hint6
94. Add 'require-sri-for' CSP Directive6
95. Add scroll-padding6
96. Cannot see |ImageCapture| entry in the web interface.6
97. CSS tag {content: url()}6
98. New feature request: x25519 Key Exchange6
99. CSS unit 'cap' (cap-height)6
100. HTMLVideoElement.requestVideoFrameCallback()6
101. MediaStream Image Capture6
102. Geofencing API6
103. autocorrect for input fileds6
104. Feature: Origin-bound one-time codes delivered via SMS5
105. Track support for navigator.getInstalledRelatedApps()5
106. one-time-code5
107. -webkit-box-orient is not found5
108. Add isSecureContext feature to list5
109. WebCrypto Key Discovery5
110. Add WebRTC insertable streams5
111. Add support tables for document.documentElement.clientWidth5
112. Accelerated Shape Detection in Images5
113. Module Worker support5
114. Please track the various HTTP Set-Cookie options supported by browsers5
115. Serial API5
116. Adding Khronos gITF 2.0 for 3D models5
117. -ms-overflow-style5
118. audio / video autoplay attribute and play function5
119. Add autocorrect, autocapitalize, autocomplete attributes5
120. add support for PerformanceLongTaskTiming5
121. Support CSS two-value display syntax5
122. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
123. Embedded color profiles in JPEG images.5
124. Support individual CSP rules5
125. Observable5
126. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
127. Add Cookie Store API4
128. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
129. CSS 3 property: text-autospace and text-spacing4
130. Bundled HTTP Exchanges4
131. Add window.showOpenFilePicker4
132. ::-webkit-file-upload-button4
133. [CSS Level 4 pseudo-class] :user-error4
134. Add `text-underline-offset` property4
135. Feature: A Well-Known URL for Changing Passwords4
136. Support the W3 Web Annotation standard (W3C Recommendation)4
137. Page-margin boxes (@top-center, etc)4
138. Support aria-hidden html property4
139. New top level domains (TLD)4
140. CSS Shaders - 4
141. HTTP Strict Transport Security Preload4
142. Add mediaSession API 4
143. Arithmetic coded JPEG support4
144. Track Intl.Segmenter4
145. `Cross-Origin-Embedder-Policy` HTTP header4
146. Feature addition: navigator.mediaCapabilities.decodingInfo()4
147. CSS Round Display4
148. Web locks4
149. USDZ file format4
150. User-Agent Client Hints (UA-CH)4
151. For printing support for the size:landscape option to tell the browser what page orientation we want...4
152. Payment Handler API4
153. Add Web Share Target API Level 24
154. CSS image() functional notation (e.g. for background-images etc). See 4
155. Cache-Control 4
156. Add font-palette-values4
157. Screen Capture4
158. Add previousSibling and previousElementSibling4
159. Add raw sockets API4
160. SVG sprites with <symbol> and <use>3
161. Add support for addHitRegion3
162. ECMAscript - static properties3
163. Add meta "format-detection"3
164. getTotalLength()3
165. Add Intl.DisplayNames3
166. Add Versatile Video Coding (VVC) … somewhen3
167. Input Events Level 1 and 23
168. event.ctrlKey3
169. display: table-caption?3
170. Support for MHTML3
171. Add Media Session API Coverage Information3
172. Add Webassembly Threads / Threaded Webassembly3
173. Support SVG width/height = auto3
174. Grid-auto-flow3
175. Add <data> element3
176. Keyboard Lock3
177. place-items shorthand for justify and align3
178. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler3
179. allowtransparency3
180. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
181. add window-inactive pseudo-class3
182. Track CSS `scroll-snap-stop`3
183. Add data for link rel="alternate"3
184. ActiveX3
185. Add support for requestSubmit3
186. The !important css thing. It's very !important ;).3
187. Add ECC certificates3
188. New browser feature: rest/spread in object literals3
189. new CSS trigonometry functions3
190. Adding Silverlight usage stats3
191. <virtual-scroller>3
192. Public class properties3
193. Network Service Discovery3
194. Add information about CSS pseudo selector :defined2
195. <semantics> element in MathML is not found in caniuse.com2
196. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
197. CSS3 marquee support. 2
198. Add Geolocation Sensor2
199. SVG image auto height2
200. EventTarget Constructor2
201. Add Integrated Windows Authentication2
202. add "unicode property escapes"2
203. <input type=file>: ability to modify the selected files via JS2
204. Support KV Storage build-in module2
205. Add new SVG filter effects2
206. Storage Access API2
207. Content-Security-Policy: block-all-mixed-content2
208. getFilesAndDirectories2
209. add Accessibility Object Model2
210. Spatial Navigation support2
211. Remote Playback API2
212. for ... of support data2
213. Feature addition: navigator.mediaCapabilities.encodingInfo()2
214. add captureVisibleTab2
215. add iframe.csp2
216. add csp lv2 violation event2
217. Support for Canvas isPointInPath()2
218. Add PNG cursor2
219. SSML2
220. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 2
221. I would like to know which browsers support the forceSpellCheck() method (2
222. .getPointAtLength()2
223. Why not suggests 'setPrototypeOf '2
224. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
225. Feature suggestion: Top level `await`2
226. getEventListeners not listed2
227. CSS page property (for printing)2
228. Tiff image format2
229. UTF-8 Dingbats2
230. Feature suggestion: add "scrollRestoration" for the History API2
231. ::-webkit-inner-spin-button ::-webkit-outer-spin-button 2
232. Add `import.meta`2
233. Loading Signed Exchanges2
234. Add information for the webcal and webcals protocols for subscribing to iCalendars2
236. Private Click Measurement (PCM)2
237. setTimeout and setInterval callback parameters2
238. Add
239. filename*=UTF-8''...2
240. documentMode2
241. Content-Security-Policy: script-nonce2
242. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
243. Add other values of `user-select` property2
244. onerror event on iframe2
245. Add browser support for toggle()2
246. SharedMemory/Atomics2
247. Add support for FlyWeb API2
248. Add 'animated GIF as favicon'?2
249. Add `q` (quarter-millimeters) length unit2
250. Can I use X3D?2
251. InputDeviceCapabilities API2
252. Please add ES3 support2
253. Device-Memory Client Hint & navigator.deviceMemory JS API2
254. Container media queries2
255. HTTP Trailers2
256. Please add attachInternals2
257. track support for the media query feature -ms-high-contrast2
258. support destructuring assignment as separate es feature2
259. JS Self-Profiling API2
260. console.assert(boolean_expression)2
261. Support of sms: and mms: in mobile browsers is not clear2
262. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
263. [DOM API] `signal` option on EventTarget.protoype.addEventListener2
264. String.prototype.split() with a regex with grouping ( parentheses ).2
265. Audio codec - xHE-AAC / USAC2
266. HTTP immutable responses2
267. Which browsers adhere to ETag?2
268. Add Web Budget API2
269. Input type=email with "multiple" attribute2
270. Support for CSS3 background-repeat-x and background-repeat-y properties2
271. Show ANSI escape code for console.log.2
272. Default function parameters2
273. Graphite font support2
274. What about showing support for various link attributes, like "subresource" or "dns-pr...2
275. x-webkit-speech2
276. srcset/sizes attribute / picture element support in SVG2
277. Basic Authentication: AuthName directive2
278. justify-content: space-around2
279. CSS touch-action level 2 values2
280. Add transitionstart event2
281. `from-image` as initial value of `image-orientation`1
282. Add Window.stop1
283. <object>.contentWindow Support1
284. Support Data Suggestion: Clients API1
285. step property of input field with type datetime-local and time1
286. Add support information for font metric override descriptors1
287. Use of es6 import statements in workers1
288. Web intents/Web Activities 1
289. device-pixel-content-box for ResizeObserver1
290. OfflineAudioContext1
291. performance.measureMemory()1
292. iframe disallowdocumentaccess property1
293. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
294. Touch Icons, per 1
295. accesskey attribute on non-focusable elements (should cause a click element to fire1
296. auto Picture-in-Picture1
297. supported-color-schemes & prefers-color-scheme1
298. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
299. <meta name="apple-mobile-web-app-capable" content="yes" />1
300. Add support for CSS clip property1
301. CSS3 new text-transform keywords1
302. Metadata name: MobileOptimized1
303. No information about the `unselectable` HTML attribute.1
304. line-height support and the differences in rendering between webkit&trident and other engines.1
305. Support for hrefTranslate1
306. Refresh1
307. please add the onsearch event1
308. DownloadURL1
309. Metadata name: HandheldFriendly1
310. baseline-middle1
311. Streams API: transferable streams1
312. Add the Javascript double asterisk power operator (**) to the list of supported features1
313. x-webkit-airplay1
314. Add dynamic-range media query1
315. Textarea wrap attribute (off, soft, hard, virtual, physical)1
316. rel="ar" support1
317. Add Text.wholeText property1
318. Intl.NumberFormat - notation (scientific, engineering, etc)1
319. Add Compression Stream API1
320. Request: IPv6 proxy functions (myIpAddressEx and friends)1
321. Add layout-instability support1
322. grid-row-gap and grid-column-gap1
323. Add Support for MPEG-4 Part 2 SP/ASP1
324. HTMLInputElement API: select support1
325. Clean up css-touch-action1
326. @top-left @bottom-center ? can you test for compatibility1
327. Document Policies1
328. Add information on context-stroke and context-fill1
329. Add desynchronized (low latency canvas contexts)1
330. What is the browser support for the newly proposed "page-orientation" property?1
331. Missing feature: Clipboard API supported mimetypes1
332. How to show support for font-variation-settings within @font-face?1
333. dns.resolve1
334. The event handler window.onscroll is missing1
335. Browser support for RTP streams?1
336. webkit-calendar-picker-indicator1
337. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
338. CanIUse OpenSearch1
339. Tracking various WebAuthn features1
340. Adding contain-intrinsic-size (suggestion)1
341. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
342. Information about WavPack audio format1
343. CMAF1
344. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
345. Track adoption of DOMFrameContentLoaded event1
346. Support for calc() in polygon and other shapes1
347. MediaTrackConstraints1
348. Add Sanitizer API1
349. Add support for svg fill-rule1
350. InsertKey Behaviour Overwrite/Normal Mode1
351. MediaStream Recording (1
352. browserconfig.xml support info1
353. Add page for relative path in HTTP Location1
354. reflected-xss missing1
355. Support setCapture and releaseCapture for mouse1
356. add onstorage1
357. Feature request: Token Binding Protocol1
358. IETF RFCs1
359. SHA2 certificates1
360. apple-touch-icon1
361. Add hreflang attribute usage support for link element1
362. event.path1
363. Missing a check for msConvertURL() on DragEvent1
364. Support for nested calc expressions in CSS values1
365. Add "Named function expressions"1
366. Open search autodiscovery1
367. add mouse event positions event.offsetX and event.offsetY1
368. CSS Inline Layout1
369. Internationalized Domain Name1
370. Add XSL to caniuse1
371. Add support for CSS3 move-to property1
372. Missing `StorageQuota` support1
373. add "document.contentType"1
374. aria-labelledby1
375. SHA1 certificates1
376. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
377. Add support for the HTTP header X-Download-Options1
378. add micropub1
379. support data suggestion: DOM event constructors ?1
380. [Suggestion] display: fullscreen1
381. min/max-device-width/height1
382. Add High Resolution Time Level 31
383. Add: Task Scheduler API Specification 1
384. column combination1
385. background-composite1
386. longdesc attribute support1
387. Drag and Drop API - ghost image with customizable opacity1
388. Please add support for getTimezoneOffset()1
389. Add method1
390. Add KeyboardEvent.repeat compatibility info1
391. Add CSS4 Grid structural selectors1
392. request support for 'accept-charset'1
393. add CSS Extensions meant for renaming1
394. show support for namespacing; for example <svg: namespace 1
395. The xml:space attribute1
396. window.event1
397. Add a footnote regarding HTMLAudioElement1
398. ie behavior1
399. Support info for the <track> element1
400. Animating SVG paths using CSS1
401. Drag and Drop API - move constraints1
402. window.localMediaStream is not listed1
403. CaretPosition missing1
404. Audio Output Devices API: wd1
405. DeviceOrientation and DeviceMotion events on insecure origins1
406. Javascript - window.onorientationchange 1
407. audio / video .canPlayType(MIMEtype)1
408. Add Range.getBoundingClientRect browser support table1
409. Add support for mediacapture-output API's sinkID1
410. document type1
411. Add windows-theme media query selector1
412. Add HTTP_ORIGIN feature1
413. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
414. Add box-suppress1
415. attachEvent event handler missing from CanIUse1
416. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
417. string-set1
418. Add css-timing 1
419. aria-current1
420. https mixed mode1
421. Add the "frame" HTML tag : some browsers don't support it !1
422. [HTTP Header] Cross-Origin-Opener-Policy1
423. Node.contains1
424. Character-based alignment in a table column using text-align1
425. Support for console.groupCollapsed1
426. Add support information for SVG's getIntersectionList1
427. user-modify1
428. [Feature Policy: sub-feature] Sandbox features1
429. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
430. support for HTMLTableElement.createTBody1
431. window.watchMedia()1
432. Add compatibility for FormData1
433. Add H2 ORIGIN frame support1
434. Cannot find cancelBubble1
435. Add a matrix entyre for opentype-with-cff21
436. Add: Tracking Preference Expression APIs1
437. Suggested addition - document.baseURI1
438. Please list support for event.eventPhase1
439. Add checking for DataTransfer1
440. add " -ms-overflow-style"1
441. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
442. VTTRegion is not found in caniuse1
443. Support for Service Worker Life Cycle Events1
444. Support for RegExp Named Capture Groups1
445. Suggested addition: navigator.cpuClass1
446. online/offline can also be used as events and are not covered by (only boolean property is covered)1
447. Report Retry-After header support1
448. Keyboard Map API1
449. date.toLocaleString support tracking plz?1
450. column-break-after atm only via: -webkit-column-break-after1
451. Missing computed property names1
452. Add `onpagehide` support data1
453. add aria-required to caniuse, if not already there1
454. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
455. CanvasRenderingContext2D.ellipse()1
456. Input type=range with "multiple" attribute1
457. Add app-region?1
458. URLSearchParams.prototype.sort1
459. SVG symbols in CSS1
460. Support for ImageBitmapRendereingContext1
461. Support XMLDocument1
462. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
463. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
464. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
465. Video media in image contexts1
466. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
467. create @Media Types1
468. Add support for document.queryCommandState1
469. Chained selectors1
470. script tag onerror attribute1
471. Javascript pseudoprotocol1
472. aria-label1
473. JS add oncuechange1
474. [HTTP Header] Accept-CH-Lifetime1
475. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
476. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...1
477. Support for Unicode and spaces in URL1
478. Add System Colors item1
479. add for...of loops1
480. Support data for Unicode flag on HTML pattern attribute1
481. HTTP Content-encoding: LZFSE1
482. IPv6 support in web browsers1
483. Edge and IE don't support IndexedDB in web workers1
484. Suggestion: support for margin-collapse?1
485. add ime-mode1