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-effect32
2. Add support table for CSP 3.0 compliance27
3. HTTP content-encoding: zstd27
4. Suggestion: MediaRecorder.isTypeSupported supported types/codecs26
5. Support JavaScript Class and Property Decorators (ES Stage 2 Draft)25
6. valueAsDate usage23
7. window.onerror - / - particularly mobile browser support23
8. form input property "valueAsNumber"23
9. Add WebDriver22
10. css/svg property dominant-baseline22
11. Can I use Reporting API22
12. text-wrap21
13. Add ES7/2016 SIMD20
14. Add lab() and lch() from CSS Color Module Level 420
15. Entries for href values including `tel:1234567` and `sms:1234567`19
16. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....18
17. JavaScript: Tail Call Support information missing18
18. Priority hints API18
19. CSS3 module "Generated Content for Paged Media" and especially the target-counter function18
20. Add HTTP 103 Early Hints18
21. XSLT Support table17
22. New feature: CSS Typed Object Model (CSS Typed OM)17
23. Add CSS Color Module Level 5 (color-adjust(), color-mix(), color-contrast())17
24. Hyphenation Options17
25. WebExtensions (browser extensions)16
26. border-corner-shape15
27. Support Intrinsic Size Attribute15
28. ESNI (Encrypted Server Name Indication)15
29. Add CSS Nesting15
30. Page Lifecycle API15
31. Add CSS Grid Layout Module Level 3 (Masonry!)14
32. Add hwb() CSS function14
33. Support constructible stylesheets / adoptedStyleSheets14
34. device-cmyk css feature14
35. `content: leader('.');`13
36. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
37. Add Media Queries Ranges13
38. Add beforeinput event13
39. I suggest support for TransferableObject types (of which there are several) 12
40. Geo URI scheme12
41. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
42. text-security missing in list of features12
43. webcl?11
44. Async iterators / for await of11
45. Color Fonts including SVG-in-OT fonts11
46. Soft hyphen: html entity &shy;11
47. Add Report-To API (Intervention Reports)10
48. + WASM SIMD10
49. CSS Box Alignment Module Level 310
50. Cookies: max-age9
51. Quota Management API 9
52. queueMicrotask support9
53. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
54. Please add iFrame element contentWindow property9
55. ElementInternals/form-associated custom element9
56. CSS3 Speech Module Which browsers support it? See9
57. Support for SVG's "shape-rendering" CSS property. 9
58. New feature request: OCSP must-staple9
59. Include `baseline-shift` CSS property8
60. Add Web Share Target API8
61. webM alpha transparency8
62. List support for the window.fetch keepalive option8
63. @font-face descriptors to override font metrics8
64. Add Web Share Level 28
65. Add CSS animation timing function spring()8
66. Add supported elliptical curves (HTTPS/TLS)8
67. Add float: footnote to CSS38
68. Add support for the __Host- and __Secure-7
69. Alt-Svc header browser support info: consider adding7
70. SVG viewport-fill-opacity property support7
71. HTTP2 Server Push7
72. SVG viewport-fill property support7
73. Add SVG `use` with external reference7
74. Support for the frame-ancestors directive7
75. Secure Cookie flag7
76. RFC7692 Compression Extensions for WebSocket7
77. Multicolor Glyph support (COLR/CPAL)7
78. 'imagesizes' & 'imagesrcset' for <link rel="preload">7
79. Badging API7
80. caniuse : Constructable Stylesheet7
81. HTMLVideoElement.requestVideoFrameCallback()7
82. input[autocomplete] (values besides on/off) 7
83. WebGL extensions7
84. Please add "isInputPending()"7
85. WebTransport7
86. Add WebRTC insertable streams6
87. Fetch Metadata Request Headers6
88. Add 'require-sri-for' CSP Directive6
89. MediaStream Image Capture6
90. New feature request: x25519 Key Exchange6
91. Add caniuse data for Contact Picker API6
92. Add save-data client hint6
93. Track support for newly added spec: Dimensions (width/height) in <source> tags6
94. Add enterkeyhint attribute ("Enter Key Hint")6
95. Flag storage that is not available under private mode6
96. CSS tag {content: url()}6
97. Add `multipart/x-mixed-replace`6
98. Cannot see |ImageCapture| entry in the web interface.6
99. Add scroll-padding6
100. autocorrect for input fileds6
101. HTML Modules6
102. Geofencing API6
103. Module Worker support5
104. one-time-code5
105. CSS 3 property: text-autospace and text-spacing5
106. Support individual CSP rules5
107. Add isSecureContext feature to list5
108. Observable5
109. audio / video autoplay attribute and play function5
110. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
111. -ms-overflow-style5
112. Embedded color profiles in JPEG images.5
113. Add autocorrect, autocapitalize, autocomplete attributes5
114. Track support for navigator.getInstalledRelatedApps()5
115. Add support tables for document.documentElement.clientWidth5
116. Support CSS two-value display syntax5
117. add support for PerformanceLongTaskTiming5
118. Add font-palette-values5
119. Accelerated Shape Detection in Images5
120. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
121. Adding Khronos gITF 2.0 for 3D models5
122. -webkit-box-orient is not found5
123. Please track the various HTTP Set-Cookie options supported by browsers5
124. Add Web Share Target API Level 25
125. WebCrypto Key Discovery5
126. Feature: Origin-bound one-time codes delivered via SMS5
127. Support the W3 Web Annotation standard (W3C Recommendation)4
128. [CSS Level 4 pseudo-class] :user-error4
129. Add window.showOpenFilePicker4
130. Container media queries4
131. Add Cookie Store API4
132. `Cross-Origin-Embedder-Policy` HTTP header4
133. New top level domains (TLD)4
134. CSS Round Display4
135. Payment Handler API4
136. Web locks4
137. Feature addition: navigator.mediaCapabilities.decodingInfo()4
138. Support aria-hidden html property4
139. Track Intl.Segmenter4
140. Bundled HTTP Exchanges4
141. ::-webkit-file-upload-button4
142. Feature: A Well-Known URL for Changing Passwords4
143. Page-margin boxes (@top-center, etc)4
144. Add `text-underline-offset` property4
145. Add Versatile Video Coding (VVC) … somewhen4
146. Screen Capture4
147. User-Agent Client Hints (UA-CH)4
148. Add previousSibling and previousElementSibling4
149. Add raw sockets API4
150. USDZ file format4
151. Arithmetic coded JPEG support4
152. For printing support for the size:landscape option to tell the browser what page orientation we want...4
153. Cache-Control 4
154. CSS Shaders - 4
155. CSS image() functional notation (e.g. for background-images etc). See 4
156. HTTP Strict Transport Security Preload4
157. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
158. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...3
159. Add meta "format-detection"3
160. SVG sprites with <symbol> and <use>3
161. <virtual-scroller>3
162. Support for MHTML3
163. place-items shorthand for justify and align3
164. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler3
165. getTotalLength()3
166. Adding Silverlight usage stats3
167. Support SVG width/height = auto3
168. Input Events Level 1 and 23
169. New browser feature: rest/spread in object literals3
170. event.ctrlKey3
171. display: table-caption?3
172. Add Intl.DisplayNames3
173. Add Media Session API Coverage Information3
174. Grid-auto-flow3
175. Network Service Discovery3
176. Add `dynamic-range` media query3
177. The !important css thing. It's very !important ;).3
178. Add <data> element3
179. Keyboard Lock3
180. Add support for addHitRegion3
181. ActiveX3
182. allowtransparency3
183. Add ECC certificates3
184. Public class properties3
185. Audio codec - xHE-AAC / USAC3
186. ECMAscript - static properties3
187. add window-inactive pseudo-class3
188. new CSS trigonometry functions3
189. Add data for link rel="alternate"3
190. Add Webassembly Threads / Threaded Webassembly3
191. Add support for requestSubmit3
192. Remote Playback API2
193. Add Integrated Windows Authentication2
194. Content-Security-Policy: block-all-mixed-content2
195. onerror event on iframe2
196. Add Geolocation Sensor2
197. Add information about CSS pseudo selector :defined2
198. EventTarget Constructor2
199. <semantics> element in MathML is not found in caniuse.com2
200. getEventListeners not listed2
201. Tiff image format2
202. getFilesAndDirectories2
203. Can I use X3D?2
204. Feature suggestion: add "scrollRestoration" for the History API2
205. Add new SVG filter effects2
206. dns.resolve2
207. SVG image auto height2
208. add Accessibility Object Model2
209. x-webkit-speech2
210. Spatial Navigation support2
211. add iframe.csp2
212. add csp lv2 violation event2
213. for ... of support data2
214. Add PNG cursor2
215. Show ANSI escape code for console.log.2
216. SSML2
217. Support for Canvas isPointInPath()2
218. Add information for the webcal and webcals protocols for subscribing to iCalendars2
219. Feature addition: navigator.mediaCapabilities.encodingInfo()2
220. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
221. .getPointAtLength()2
222. Why not suggests 'setPrototypeOf '2
223. CSS page property (for printing)2
224. Basic Authentication: AuthName directive2
225. justify-content: space-around2
226. Which browsers adhere to ETag?2
227. add captureVisibleTab2
229. Loading Signed Exchanges2
230. SharedMemory/Atomics2
231. Add browser support for toggle()2
232. Add other values of `user-select` property2
233. console.assert(boolean_expression)2
234. JS Self-Profiling API2
235. support destructuring assignment as separate es feature2
236. documentMode2
237. Content-Security-Policy: script-nonce2
238. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
239. filename*=UTF-8''...2
240. <input type=file>: ability to modify the selected files via JS2
241. Support of sms: and mms: in mobile browsers is not clear2
242. track support for the media query feature -ms-high-contrast2
243. Add support for FlyWeb API2
244. [DOM API] `signal` option on EventTarget.protoype.addEventListener2
245. Add 'animated GIF as favicon'?2
246. Graphite font support2
247. Support KV Storage build-in module2
248. Input type=email with "multiple" attribute2
249. Private Click Measurement (PCM)2
250. Storage Access API2
251. Add `accent-color` property (CSS UI 4)2
252. Add `q` (quarter-millimeters) length unit2
253. InputDeviceCapabilities API2
254. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
255. CSS touch-action level 2 values2
256. Add transitionstart event2
257. String.prototype.split() with a regex with grouping ( parentheses ).2
258. Support for CSS3 background-repeat-x and background-repeat-y properties2
259. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 2
260. UTF-8 Dingbats2
261. Add
262. Please add attachInternals2
263. Add Web Budget API2
264. add "unicode property escapes"2
265. Please add ES3 support2
266. What about showing support for various link attributes, like "subresource" or "dns-pr...2
267. srcset/sizes attribute / picture element support in SVG2
268. HTTP Trailers2
269. HTTP immutable responses2
270. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
271. Device-Memory Client Hint & navigator.deviceMemory JS API2
272. setTimeout and setInterval callback parameters2
273. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...1
274. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...1
275. Refresh1
276. CSS3 new text-transform keywords1
277. How to show support for font-variation-settings within @font-face?1
278. step property of input field with type datetime-local and time1
279. baseline-middle1
280. Add Window.stop1
281. Support Data Suggestion: Clients API1
282. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
283. please add the onsearch event1
284. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
285. create @Media Types1
286. Support for calc() in polygon and other shapes1
287. Add support for CSS clip property1
288. supported-color-schemes & prefers-color-scheme1
289. The event handler window.onscroll is missing1
290. <object>.contentWindow Support1
291. MediaTrackConstraints1
292. script tag onerror attribute1
293. column combination1
294. Add Compression Stream API1
295. Add Text.wholeText property1
296. performance.measureMemory()1
297. Track adoption of DOMFrameContentLoaded event1
298. CMAF1
299. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
300. Adding contain-intrinsic-size (suggestion)1
301. Textarea wrap attribute (off, soft, hard, virtual, physical)1
302. Tracking various WebAuthn features1
303. CanIUse OpenSearch1
304. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
305. webkit-calendar-picker-indicator1
306. Streams API: transferable streams1
307. iframe disallowdocumentaccess property1
308. `from-image` as initial value of `image-orientation`1
309. Add support for svg fill-rule1
310. auto Picture-in-Picture1
311. Metadata name: HandheldFriendly1
312. Metadata name: MobileOptimized1
313. Browser support for RTP streams?1
314. Support for hrefTranslate1
315. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
316. device-pixel-content-box for ResizeObserver1
317. No information about the `unselectable` HTML attribute.1
318. Add support information for font metric override descriptors1
319. WebXR Hand Input Module - Level 11
320. line-height support and the differences in rendering between webkit&trident and other engines.1
321. Add Sanitizer API1
322. Web intents/Web Activities 1
323. Request: IPv6 proxy functions (myIpAddressEx and friends)1
324. MediaStream Recording (1
325. Clean up css-touch-action1
326. Document Policies1
327. Add information on context-stroke and context-fill1
328. Add the "frame" HTML tag : some browsers don't support it !1
329. Add desynchronized (low latency canvas contexts)1
330. @top-left @bottom-center ? can you test for compatibility1
331. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...1
332. HTMLInputElement API: select support1
333. column-break-after atm only via: -webkit-column-break-after1
334. Add Support for MPEG-4 Part 2 SP/ASP1
335. grid-row-gap and grid-column-gap1
336. accesskey attribute on non-focusable elements (should cause a click element to fire1
337. InsertKey Behaviour Overwrite/Normal Mode1
338. Add the Javascript double asterisk power operator (**) to the list of supported features1
339. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
340. Intl.NumberFormat - notation (scientific, engineering, etc)1
341. rel="ar" support1
342. <meta name="apple-mobile-web-app-capable" content="yes" />1
343. x-webkit-airplay1
344. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
345. What is the browser support for the newly proposed "page-orientation" property?1
346. Add layout-instability support1
347. Touch Icons, per 1
348. Missing feature: Clipboard API supported mimetypes1
349. Information about WavPack audio format1
350. Use of es6 import statements in workers1
351. Add compatibility for FormData1
352. Input type=range with "multiple" attribute1
353. Drag and Drop API - move constraints1
354. add micropub1
355. support data suggestion: DOM event constructors ?1
356. [Suggestion] display: fullscreen1
357. min/max-device-width/height1
358. Add High Resolution Time Level 31
359. Add: Task Scheduler API Specification 1
360. Add css-timing 1
361. Audio Output Devices API: wd1
362. aria-current1
363. add aria-required to caniuse, if not already there1
364. CanvasRenderingContext2D.ellipse()1
365. Drag and Drop API - ghost image with customizable opacity1
366. Add app-region?1
367. Add support for the HTTP header X-Download-Options1
368. URLSearchParams.prototype.sort1
369. SVG symbols in CSS1
370. Animating SVG paths using CSS1
371. Support info for the <track> element1
372. Support for ImageBitmapRendereingContext1
373. Support XMLDocument1
374. Add a footnote regarding HTMLAudioElement1
375. window.event1
376. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
377. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
378. Video media in image contexts1
379. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
380. add CSS Extensions meant for renaming1
381. DeviceOrientation and DeviceMotion events on insecure origins1
382. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
383. request support for 'accept-charset'1
384. Support for nested calc expressions in CSS values1
385. Internationalized Domain Name1
386. CaretPosition missing1
387. string-set1
388. SHA2 certificates1
389. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
390. attachEvent event handler missing from CanIUse1
391. Add box-suppress1
392. apple-touch-icon1
393. Add hreflang attribute usage support for link element1
394. event.path1
395. Add HTTP_ORIGIN feature1
396. Missing a check for msConvertURL() on DragEvent1
397. Add "Named function expressions"1
398. SHA1 certificates1
399. Open search autodiscovery1
400. add mouse event positions event.offsetX and event.offsetY1
401. document type1
402. reflected-xss missing1
403. Add support for mediacapture-output API's sinkID1
404. Add Range.getBoundingClientRect browser support table1
405. Add XSL to caniuse1
406. Add support for CSS3 move-to property1
407. audio / video .canPlayType(MIMEtype)1
408. Missing `StorageQuota` support1
409. add "document.contentType"1
410. Javascript - window.onorientationchange 1
411. aria-labelledby1
412. Add support for document.queryCommandState1
413. Add CSS4 Grid structural selectors1
414. DownloadURL1
415. Please list support for event.eventPhase1
416. support for HTMLTableElement.createTBody1
417. window.watchMedia()1
418. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
419. Support setCapture and releaseCapture for mouse1
420. background-composite1
421. Add H2 ORIGIN frame support1
422. Cannot find cancelBubble1
423. add onstorage1
424. Feature request: Token Binding Protocol1
425. IETF RFCs1
426. Add a matrix entyre for opentype-with-cff21
427. Suggested addition - document.baseURI1
428. Add checking for DataTransfer1
429. [Feature Policy: sub-feature] Sandbox features1
430. VTTRegion is not found in caniuse1
431. Support for Service Worker Life Cycle Events1
432. Support for RegExp Named Capture Groups1
433. Suggested addition: navigator.cpuClass1
434. online/offline can also be used as events and are not covered by (only boolean property is covered)1
435. Report Retry-After header support1
436. Keyboard Map API1
437. date.toLocaleString support tracking plz?1
438. https mixed mode1
439. Add page for relative path in HTTP Location1
440. CSS Inline Layout1
441. OfflineAudioContext1
442. longdesc attribute support1
443. Add windows-theme media query selector1
444. user-modify1
445. Chained selectors1
446. add for...of loops1
447. Javascript pseudoprotocol1
448. Add KeyboardEvent.repeat compatibility info1
449. aria-label1
450. JS add oncuechange1
451. [HTTP Header] Accept-CH-Lifetime1
452. browserconfig.xml support info1
453. Edge and IE don't support IndexedDB in web workers1
454. Please add support for getTimezoneOffset()1
455. Add method1
456. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
457. show support for namespacing; for example <svg: namespace 1
458. Support for Unicode and spaces in URL1
459. Add System Colors item1
460. The xml:space attribute1
461. Add support information for SVG's getIntersectionList1
462. Support data for Unicode flag on HTML pattern attribute1
463. HTTP Content-encoding: LZFSE1
464. IPv6 support in web browsers1
465. add ime-mode1
466. Suggestion: support for margin-collapse?1
467. ie behavior1
468. Add `onpagehide` support data1
469. Add: Tracking Preference Expression APIs1
470. window.localMediaStream is not listed1
471. Missing computed property names1
472. [HTTP Header] Cross-Origin-Opener-Policy1
473. Node.contains1
474. Character-based alignment in a table column using text-align1
475. Add CSS Properties and Values API1