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. Add `text-edge` and `leading-trim`67
2. vector-effect31
3. Add support table for CSP 3.0 compliance27
4. HTTP content-encoding: zstd25
5. Support JavaScript Class and Property Decorators (ES Stage 2 Draft)23
6. window.onerror - / - particularly mobile browser support23
7. Suggestion: MediaRecorder.isTypeSupported supported types/codecs23
8. css/svg property dominant-baseline22
9. valueAsDate usage22
10. Can I use Reporting API22
11. Add WebDriver22
12. Add JPEG-XL21
13. Add ES7/2016 SIMD20
14. form input property "valueAsNumber"20
15. text-wrap19
16. Priority hints API18
17. CSS3 module "Generated Content for Paged Media" and especially the target-counter function18
18. Add lab() and lch() from CSS Color Module Level 418
19. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....18
20. JavaScript: Tail Call Support information missing17
21. XSLT Support table17
22. Entries for href values including `tel:1234567` and `sms:1234567`17
23. New feature: CSS Typed Object Model (CSS Typed OM)17
24. Add HTTP 103 Early Hints16
25. WebExtensions (browser extensions)16
26. Support Intrinsic Size Attribute15
27. ESNI (Encrypted Server Name Indication)15
28. Hyphenation Options15
29. border-corner-shape15
30. Add CSS Grid Layout Module Level 3 (Masonry!)14
31. Page Lifecycle API14
32. device-cmyk css feature14
33. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...13
34. <video> `playsinline` attribute13
35. Add hwb() CSS function13
36. Add Media Queries Ranges13
37. Add beforeinput event13
38. `content: leader('.');`13
39. text-security missing in list of features12
40. I suggest support for TransferableObject types (of which there are several) 12
41. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...12
42. Support constructible stylesheets / adoptedStyleSheets12
43. Geo URI scheme11
44. Add CSS Color Module Level 5 (color-adjust(), color-mix(), color-contrast())11
45. Soft hyphen: html entity &shy;11
46. Async iterators / for await of11
47. CSS Box Alignment Module Level 310
48. Add CSS Nesting10
49. webcl?10
50. Color Fonts including SVG-in-OT fonts10
51. Add Report-To API (Intervention Reports)10
52. Paint Timing API10
53. Please add iFrame element contentWindow property9
54. CSS3 Speech Module Which browsers support it? See9
55. Quota Management API 9
56. New feature request: OCSP must-staple9
57. Cookies: max-age9
58. Support for SVG's "shape-rendering" CSS property. 9
59. queueMicrotask support9
60. webM alpha transparency8
61. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...8
62. Add float: footnote to CSS38
63. Include `baseline-shift` CSS property8
64. Add CSS animation timing function spring()8
65. Support for the frame-ancestors directive7
66. input[autocomplete] (values besides on/off) 7
67. Add supported elliptical curves (HTTPS/TLS)7
68. HTTP2 Server Push7
69. Multicolor Glyph support (COLR/CPAL)7
70. RFC7692 Compression Extensions for WebSocket7
71. SVG viewport-fill property support7
72. SVG viewport-fill-opacity property support7
73. CSS max-lines7
74. Alt-Svc header browser support info: consider adding7
75. List support for the window.fetch keepalive option7
76. WebGL extensions7
77. 'imagesizes' & 'imagesrcset' for <link rel="preload">7
78. Badging API7
79. Add support for the __Host- and __Secure-7
80. Add SVG `use` with external reference7
81. ElementInternals/form-associated custom element7
82. + WASM SIMD7
83. Please add "isInputPending()"7
84. Secure Cookie flag6
85. Add Web Share Target API6
86. Add `multipart/x-mixed-replace`6
87. Add scroll-padding6
88. Add Web Share Level 26
89. HTML Modules6
90. Cannot see |ImageCapture| entry in the web interface.6
91. Fetch Metadata Request Headers6
92. Flag storage that is not available under private mode6
93. CSS tag {content: url()}6
94. caniuse : Constructable Stylesheet6
95. Add caniuse data for Contact Picker API6
96. Add save-data client hint6
97. Add 'require-sri-for' CSP Directive6
98. CSS unit 'cap' (cap-height)6
99. Add enterkeyhint attribute ("Enter Key Hint")6
100. New feature request: x25519 Key Exchange6
101. Suggestion: overflow(-[xy])? with 'overlay' value6
102. MediaStream Image Capture6
103. autocorrect for input fileds6
104. Geofencing API6
105. -ms-overflow-style5
106. Adding Khronos gITF 2.0 for 3D models5
107. Please track the various HTTP Set-Cookie options supported by browsers5
108. add support for PerformanceLongTaskTiming5
109. audio / video autoplay attribute and play function5
110. Module Worker support5
111. WebCrypto Key Discovery5
112. Accelerated Shape Detection in Images5
113. Add support tables for document.documentElement.clientWidth5
114. @font-face descriptors to override font metrics5
115. Feature: Origin-bound one-time codes delivered via SMS5
116. Add isSecureContext feature to list5
117. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects5
118. one-time-code5
119. HTMLVideoElement.requestVideoFrameCallback()5
120. Track support for navigator.getInstalledRelatedApps()5
121. -webkit-box-orient is not found5
122. Add autocorrect, autocapitalize, autocomplete attributes5
123. Support individual CSP rules5
124. Observable5
125. Embedded color profiles in JPEG images.5
126. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 5
127. Support CSS two-value display syntax5
128. Add previousSibling and previousElementSibling4
129. [CSS Level 4 pseudo-class] :user-error4
130. Serial API4
131. Cache-Control 4
132. CSS 3 property: text-autospace and text-spacing4
133. Feature: A Well-Known URL for Changing Passwords4
134. Add raw sockets API4
135. CSS Round Display4
136. Payment Handler API4
137. Bundled HTTP Exchanges4
138. Page-margin boxes (@top-center, etc)4
139. `Cross-Origin-Embedder-Policy` HTTP header4
140. For printing support for the size:landscape option to tell the browser what page orientation we want...4
141. CSS image() functional notation (e.g. for background-images etc). See 4
142. Screen Capture4
143. User-Agent Client Hints (UA-CH)4
144. Add mediaSession API 4
145. Support the W3 Web Annotation standard (W3C Recommendation)4
146. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...4
147. New top level domains (TLD)4
148. Arithmetic coded JPEG support4
149. Add Web Share Target API Level 24
150. Add `text-underline-offset` property4
151. USDZ file format4
152. Web locks4
153. HTTP Strict Transport Security Preload4
154. Support aria-hidden html property4
155. Add Cookie Store API4
156. Add WebRTC insertable streams4
157. Add window.showOpenFilePicker4
158. WebTransport4
159. Feature addition: navigator.mediaCapabilities.decodingInfo()4
160. CSS Shaders - 4
161. Track CSS `scroll-snap-stop`3
162. The !important css thing. It's very !important ;).3
163. Add Media Session API Coverage Information3
164. Add Versatile Video Coding (VVC) … somewhen3
165. Add support for addHitRegion3
166. SVG sprites with <symbol> and <use>3
167. Add Intl.DisplayNames3
168. Add Webassembly Threads / Threaded Webassembly3
169. place-items shorthand for justify and align3
170. display: table-caption?3
171. Add data for link rel="alternate"3
172. getTotalLength()3
173. ActiveX3
174. Add meta "format-detection"3
175. new CSS trigonometry functions3
176. Network Service Discovery3
177. New browser feature: rest/spread in object literals3
178. Support for MHTML3
179. Add support for requestSubmit3
180. Support SVG width/height = auto3
181. Keyboard Lock3
182. Add ECC certificates3
183. <virtual-scroller>3
184. ::-webkit-file-upload-button3
185. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler3
186. Add <data> element3
187. Adding Silverlight usage stats3
188. Add font-palette-values3
189. Input Events Level 1 and 23
190. Public class properties3
191. Grid-auto-flow3
192. ECMAscript - static properties3
193. allowtransparency3
194. add window-inactive pseudo-class3
195. event.ctrlKey3
196. Feature suggestion: add "scrollRestoration" for the History API2
197. Add Integrated Windows Authentication2
198. Content-Security-Policy: block-all-mixed-content2
199. add Accessibility Object Model2
200. Add Geolocation Sensor2
201. getEventListeners not listed2
202. setTimeout and setInterval callback parameters2
203. ::-webkit-inner-spin-button ::-webkit-outer-spin-button 2
204. Loading Signed Exchanges2
205. What about showing support for various link attributes, like "subresource" or "dns-pr...2
206. Add new SVG filter effects2
207. add csp lv2 violation event2
208. add captureVisibleTab2
209. Support for Canvas isPointInPath()2
210. SVG image auto height2
211. Feature addition: navigator.mediaCapabilities.encodingInfo()2
212. Add `import.meta`2
213. Why not suggests 'setPrototypeOf '2
214. .getPointAtLength()2
215. CSS page property (for printing)2
216. add iframe.csp2
217. UTF-8 Dingbats2
218. <semantics> element in MathML is not found in caniuse.com2
220. Add PNG cursor2
221. Add information for the webcal and webcals protocols for subscribing to iCalendars2
222. Remote Playback API2
223. for ... of support data2
224. SSML2
225. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 2
226. Wildcard "*" support for Access-Control-Allow-Headers/Methods2
227. getFilesAndDirectories2
228. Feature suggestion: Top level `await`2
229. Tiff image format2
230. Spatial Navigation support2
231. Device-Memory Client Hint & navigator.deviceMemory JS API2
232. Please add attachInternals2
233. Add information about CSS pseudo selector :defined2
234. HTTP immutable responses2
235. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...2
236. Add `q` (quarter-millimeters) length unit2
237. InputDeviceCapabilities API2
238. EventTarget Constructor2
239. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...2
240. Please add ES3 support2
241. Container media queries2
242. <input type=file>: ability to modify the selected files via JS2
243. track support for the media query feature -ms-high-contrast2
244. SharedMemory/Atomics2
245. console.assert(boolean_expression)2
246. x-webkit-speech2
247. Support KV Storage build-in module2
248. add "unicode property escapes"2
249. HTTP Trailers2
250. Storage Access API2
251. support destructuring assignment as separate es feature2
252. onerror event on iframe2
253. Can I use X3D?2
254. Basic Authentication: AuthName directive2
255. Which browsers adhere to ETag?2
256. Add support for FlyWeb API2
257. Add 'animated GIF as favicon'?2
258. Add browser support for toggle()2
259. justify-content: space-around2
260. Input type=email with "multiple" attribute2
261. Add Web Budget API2
262. Support for CSS3 background-repeat-x and background-repeat-y properties2
263. I would like to know which browsers support the forceSpellCheck() method (2
264. Default function parameters2
265. Show ANSI escape code for console.log.2
266. String.prototype.split() with a regex with grouping ( parentheses ).2
267. srcset/sizes attribute / picture element support in SVG2
268. Add transitionstart event2
269. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...2
270. Support of sms: and mms: in mobile browsers is not clear2
271. CSS3 marquee support. 2
272. CSS touch-action level 2 values2
273. Content-Security-Policy: script-nonce2
274. filename*=UTF-8''...2
275. Add other values of `user-select` property2
276. Add
277. documentMode2
278. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
279. Web intents/Web Activities 1
280. Refresh1
281. accesskey attribute on non-focusable elements (should cause a click element to fire1
282. Add support for CSS clip property1
283. OfflineAudioContext1
284. The event handler window.onscroll is missing1
285. <meta name="apple-mobile-web-app-capable" content="yes" />1
286. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)1
287. Support Data Suggestion: Clients API1
288. please add the onsearch event1
289. <object>.contentWindow Support1
290. DownloadURL1
291. Touch Icons, per 1
292. Use of es6 import statements in workers1
293. step property of input field with type datetime-local and time1
294. Add Window.stop1
295. supported-color-schemes & prefers-color-scheme1
296. CSS3 new text-transform keywords1
297. How to show support for font-variation-settings within @font-face?1
298. browserconfig.xml support info1
299. Add information on context-stroke and context-fill1
300. dns.resolve1
301. Streams API: transferable streams1
302. Add Sanitizer API1
303. Track adoption of DOMFrameContentLoaded event1
304. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.1
305. CMAF1
306. css animation on “content:” - works on chrome, doesn't work on Safari and Firefox1
307. Adding contain-intrinsic-size (suggestion)1
308. Tracking various WebAuthn features1
309. CanIUse OpenSearch1
310. Add `::target-text` (from CSS Pseudo-Elements Module Level 4)1
311. webkit-calendar-picker-indicator1
312. iframe disallowdocumentaccess property1
313. InsertKey Behaviour Overwrite/Normal Mode1
314. performance.measureMemory()1
315. JS Self-Profiling API1
316. line-height support and the differences in rendering between webkit&trident and other engines.1
317. `from-image` as initial value of `image-orientation`1
318. auto Picture-in-Picture1
319. Metadata name: HandheldFriendly1
320. Metadata name: MobileOptimized1
321. Support for hrefTranslate1
322. Track Intl.Segmenter1
323. device-pixel-content-box for ResizeObserver1
324. Add support for svg fill-rule1
325. Information about WavPack audio format1
326. baseline-middle1
327. HTMLInputElement API: select support1
328. Please add JavaScript string functions trimStart, trimEnd, trimRight, trimLeft1
329. Support for calc() in polygon and other shapes1
330. MediaTrackConstraints1
331. Add Text.wholeText property1
332. Request: IPv6 proxy functions (myIpAddressEx and friends)1
333. Clean up css-touch-action1
334. Document Policies1
335. https mixed mode1
336. Add desynchronized (low latency canvas contexts)1
337. @top-left @bottom-center ? can you test for compatibility1
338. Add Support for MPEG-4 Part 2 SP/ASP1
339. Missing feature: Clipboard API supported mimetypes1
340. grid-row-gap and grid-column-gap1
341. Textarea wrap attribute (off, soft, hard, virtual, physical)1
342. Add the Javascript double asterisk power operator (**) to the list of supported features1
343. Add Compression Stream API1
344. Intl.NumberFormat - notation (scientific, engineering, etc)1
345. rel="ar" support1
346. Add dynamic-range media query1
347. x-webkit-airplay1
348. What is the browser support for the newly proposed "page-orientation" property?1
349. Add layout-instability support1
350. Browser support for RTP streams?1
351. Add page for relative path in HTTP Location1
352. IPv6 support in web browsers1
353. MediaStream Recording (1
354. add mouse event positions event.offsetX and event.offsetY1
355. Support setCapture and releaseCapture for mouse1
356. background-composite1
357. add onstorage1
358. Feature request: Token Binding Protocol1
359. SHA2 certificates1
360. IETF RFCs1
361. apple-touch-icon1
362. Add hreflang attribute usage support for link element1
363. event.path1
364. Missing a check for msConvertURL() on DragEvent1
365. Support for nested calc expressions in CSS values1
366. Add "Named function expressions"1
367. Open search autodiscovery1
368. reflected-xss missing1
369. Internationalized Domain Name1
370. CSS Inline Layout1
371. Add XSL to caniuse1
372. Add support for CSS3 move-to property1
373. Missing `StorageQuota` support1
374. add "document.contentType"1
375. aria-labelledby1
376. SHA1 certificates1
377. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
378. Add support for the HTTP header X-Download-Options1
379. add micropub1
380. support data suggestion: DOM event constructors ?1
381. [Suggestion] display: fullscreen1
382. min/max-device-width/height1
383. Add High Resolution Time Level 31
384. column combination1
385. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
386. Add css-timing 1
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. window.event1
396. Add a footnote regarding HTMLAudioElement1
397. The xml:space attribute1
398. Support info for the <track> element1
399. Animating SVG paths using CSS1
400. Drag and Drop API - move constraints1
401. ie behavior1
402. CaretPosition missing1
403. Audio Output Devices API: wd1
404. window.localMediaStream is not listed1
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 HTTP_ORIGIN feature1
412. Add windows-theme media query selector1
413. Add box-suppress1
414. attachEvent event handler missing from CanIUse1
415. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
416. string-set1
417. Add: Task Scheduler API Specification 1
418. aria-current1
419. date.toLocaleString support tracking plz?1
420. Cannot find cancelBubble1
421. Missing computed property names1
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. Add the "frame" HTML tag : some browsers don't support it !1
435. Add `onpagehide` support data1
436. Add a matrix entyre for opentype-with-cff21
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. column-break-after atm only via: -webkit-column-break-after1
450. Add: Tracking Preference Expression APIs1
451. script tag onerror attribute1
452. add aria-required to caniuse, if not already there1
453. create @Media Types1
454. CanvasRenderingContext2D.ellipse()1
455. longdesc attribute support1
456. Add app-region?1
457. URLSearchParams.prototype.sort1
458. SVG symbols in CSS1
459. Input type=range with "multiple" attribute1
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. Add support for document.queryCommandState1
468. Suggestion for Which browsers.versions support multiple tbody elements in a single table?1
469. Suggestion: support for margin-collapse?1
470. Chained selectors1
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. Edge and IE don't support IndexedDB in web workers1
483. add ime-mode1
484. [DOM API] `signal` option on EventTarget.protoype.addEventListener1