Can I use...

Feature suggestion list

This list shows all suggested support table features based on GitHub issues. The vote count is based on +1s in each issue's comments as well as any votes originally received via Google Moderator. The list is updated every hour.

In addition to this list, suggestions based on number of 👍 reactions are also considered.

SuggestionVotes
1. Support for CSS3 overflow-x and overflow-y properties27
2. quic support or compatibility?22
3. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....19
4. I suggest support for TransferableObject types (of which there are several) 19
5. The <keygen> tag is a bit of a mess when it comes to support, so it would be quite a useful ad...18
6. css3 animation-play-state please18
7. I would like to see document.readyState supported values in the caniuse.com18
8. css/svg property dominant-baseline18
9. CSS3 min() and max() functions as values for properties that accept <dimension> as a value.18
10. CSS3 marquee support. 18
11. input[autocomplete] (values besides on/off) 17
12. The bdi (bidi isolate) element, added in HTML5 to ease inserting RTL text into an LTR page or vice-v...17
13. How about overflow-scrolling? iOS Safari needs the webkit vendor prefix for example. Can't find ...17
14. Soft hyphen: html entity &shy;16
15. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...16
16. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects16
17. Add column-span and column-fill features16
18. text-wrap16
19. I have just noticed that the onended event of the HTML5 <audio> tag is supported in Firefox 11...16
20. XSLT Support table15
21. Browser support for crossorigin attribute on img/video (as described in ) would be useful15
22. The Output Element 15
23. Built-in PDF viewer support14
24. The mouseenter and mouseleave events14
25. Include `baseline-shift` CSS property14
26. CSS3 Template Layout 14
27. CSS3 Speech Module Which browsers support it? See13
28. https://developer.mozilla.org/en-US/docs/Web/Events/wheel13
29. list-style-type 13
30. I couldn't find a compatibility table for animation-fill-mode. Currently needs browser prefixe...13
31. Show browser support for CSS border-collapse and border-spacing (and there might be other table-rela...13
32. requestAutoComplete 13
33. Please add support tables for x-xss-protection security header. Thanks!12
34. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...12
35. Emoji display support12
36. device-cmyk css feature12
37. document.elementsFromPoint12
38. window.onerror - / - particularly mobile browser support12
39. geo: url support - 12
40. For printing support for the size:landscape option to tell the browser what page orientation we want...11
41. Support for window.scrollX and window.scrollY11
42. What about showing support for various link attributes, like "subresource" or "dns-pr...11
43. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.11
44. Why do white-space not appear to be in the list? :)11
45. I'd like to see border-corner-shape added. It would be a nice feature when implemented in browse...10
46. line-height support and the differences in rendering between webkit&trident and other engines.10
47. script tag onerror attribute10
48. WebExtensions (browser extensions)10
49. Keyboard events (keypress, keyup, keydown, textinput) - see here 10
50. Quota Management API 10
51. Show support table with history as time-based, instead of versions-back-based. With Chrome and IE ve...9
52. Support for SVG's "shape-rendering" CSS property. 9
53. Show results for Firefox ESR (currently 17.07).9
54. the withCredentials property in xhr = new XMLHttpRequest() is used to check for XMLHttpRequest suppo...9
55. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...9
56. Webkit-based browsers extend the MediaQuery W3C Standard with specific queries for animation, transi...9
57. webM alpha transparency9
58. CSS3 module "Generated Content for Paged Media" and especially the target-counter function9
59. webcl?9
60. accesskey attribute on non-focusable elements (should cause a click element to fire9
61. Add navigator.mediaDevices9
62. Add nextElementSibling9
63. saveAs does not seem to be on the site (or else, I'm just incapable of finding it). It would be ...9
64. HttpOnly flag for cookies, what browsers support? it would be nice to have that in the caniuse.com 8
65. Add support for CSS's @import8
66. Entries for href values including `tel:1234567` and `sms:1234567`8
67. X-Content-Type-Options: nosniff7
68. I would like to know which browsers support the forceSpellCheck() method (7
69. domElement.style.setProperty()7
70. Embedded color profiles in JPEG images.7
71. DNS-based Authentication of Named Entities (DANE)7
72. column-span and other column-* proprieties of CSS3 Multi-column layout module7
73. Web NFC API7
74. list-style-image7
75. clipboardData: text, rtf, html, image, etc.7
76. Object.assign7
77. Add browser support for text-decoration-skip [ - Not sure if any browsers support it yet, but someth...7
78. Add stale-while-revalidate HTTP header support indication7
79. CSS <angle> - particularly the "turn" unit7
80. Track document.registerElement I think a test just to see if it is defined would be sufficient. It...7
81. Add System Info API 7
82. DataChannel WebRTC JS API7
83. Based on this page I suggest to add addRule and insertRule Thanks7
84. Geofencing API7
85. Support for list-style-type7
86. draggable option7
87. Object.entries feature?7
88. break-inside for columns.7
89. CSS image() functional notation (e.g. for background-images etc). See 7
90. Server Timing7
91. Support for CSS grid's subgrid7
92. Please add navigator.cookieEnabled6
93. CSS minmax()6
94. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...6
95. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...6
96. Paint Timing API6
97. location.origin6
98. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...6
99. Add browser support info for the HTTP Cache-Control header "immutable" flag6
100. http://www.w3.org/TR/html-json-forms/6
101. Add Clear Site Data header6
102. html5 canvas.toblob6
103. Which browsers support colgroup completely?6
104. Javascript: Array.prototype.fill() 6
105. More details on File Blobs6
106. Browser support for RTP streams?6
107. The 'media' attribute from the source element for HTML5's audio and video elements. Thi...6
108. Dialogs implemented using separate documents window.showModalDialog() 6
109. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...6
110. Add browser support for toggle()6
111. blink tag6
112. ECMAScript 6 collection: Set 6
113. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 6
114. Please add "imageSmoothingEnabled". Chrome supports it unprefixed. IE11, Firefox, and Saf...6
115. font-variant-numeric6
116. Why don't we add quotes property? 5
117. WeakMap API 5
118. "click" function on anchor DOM element (a)5
119. Textarea wrap attribute (off, soft, hard, virtual, physical)5
120. empty-cells (5
121. registerContentHandler(), registerProtocolHandler(), and friends5
122. getElementsByName5
123. Can I use "onmouseover", "onmouseout"?5
124. 'caniuse.com' should have small-caps (and other font variants?) broken out as a separate fea...5
125. Lookbehind in JavaScript regex5
126. Add more CSS3 media query sub-types: e.g. 'orientation' and 'aspect-ratio'5
127. form input property "valueAsNumber"5
128. designMode5
129. http://www.w3.org/TR/web-alarms/5
130. add "HTTP status code headers"5
131. playbackRate in video5
132. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...5
133. <meta name="apple-mobile-web-app-capable" content="yes" />5
134. image-rect isn't supported by anybody but Mozilla as far as I can tell, but I'd love it to b...5
135. "border-corner-shape" 5
136. Add beforeinput event5
137. vector-effect5
138. Add table-layout support, whether browers: - implement the 'fixed' layout properly, evenly ...5
139. Scheme-less URIs, aka the relative URIs. See5
140. New feature request: OCSP must-staple5
141. Add WebDriver5
142. MediaStream Recording (5
143. HTML5 Events Like onoffline, onpopstate, etc.5
144. Add text-underline-position property5
145. Date.prototype.toLocaleDateString4
146. CSS Box Alignment Module Level 34
147. Add supported elliptical curves (HTTPS/TLS)4
148. Add: the 'isolation' CSS property4
149. MouseEvent4
150. text-security missing in list of features4
151. Add support table for CSP 3.0 compliance4
152. Flag storage that is not available under private mode4
153. Secure Cookie flag4
154. Add SVG `use` with external reference4
155. lastModified HTML5 DOM property4
156. Touch Icons, per 4
157. svg transform matrix4
158. Add ProgressEvent4
159. track element and TextTrack object4
160. EventArgs.buttons is new for mouse events (www.w3.org/TR/DOM-Level-3-Events/#events-MouseEvent-butto...4
161. Support for line-break4
162. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)4
163. Web intents/Web Activities 4
164. extend-to-zoom4
165. Tiff image format4
166. user-input 4
167. Messaging API (SMS) 4
168. track arraybuffer support for binary websockets4
169. @host This CSS @-rule applies to the surrounding element of a template. See 4
170. rel="next"4
171. CSS Shaders - 4
172. font-weight: (CSS3) Which browsers support numeric weights (200, 300) as opposed to simply "bol...4
173. target-new4
174. Luminosity media query 4
175. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...4
176. CSS env() support4
177. Please add :autofill to the DB4
178. svg @preserveaspectratio4
179. feature: track ReadableStream4
180. .style.setAttribute() Does every browser support it? Sometimes it's hard to know it it's not...4
181. window.Touch support for browsers: - returns the Touch object constructor on touch events supporting...4
182. Add support for the svg paint-order property4
183. Add Expect-CT header4
184. Track WritableStream, ReadableStream.prototype.pipeTo, TransformStream, ReadableStreamByobReader3
185. ex unit3
186. Add support for FlyWeb API3
187. Add referrerpolicy attribute3
188. Add :host/:host-context pseudo class3
189. Add background-clip: text3
190. Add Cache Storage API / Cache API3
191. Wake Lock API3
192. Number.prototype.toLocaleString() has no data3
193. Add 'require-sri-for' CSP Directive3
194. Content-Security-Policy: script-nonce3
195. target-new3
196. css3 border-color3
197. @document, as described in & 3
198. Please add a support table for the CanvasRenderingContext2D.filter property that firefox supports.3
199. UI Events builds on DOM Event Level 3, it is specified here3
200. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...3
201. file input type supported browser3
202. CSS "visibility" (hidden/visible/etc)3
203. I suggest you to put browser acceptance of the javascript property clientHeight3
204. column-break-after atm only via: -webkit-column-break-after3
205. Would like to see support for XMLSerializer object and document.implementation.createDocument and eq...3
206. Support SVG width/height = auto3
207. Missing font-synthesis CSS 3 property3
208. Multicolor Glyph support3
209. CSS Property caption-side is missing?3
210. SVG-in-OT fonts3
211. JavaScript: Tail Call Support information missing3
212. Trailing commas3
213. Add event currentTarget property3
214. Input type=email with "multiple" attribute3
215. `content: leader('.');`3
216. Add other values of `user-select` property3
217. Feature request: Token Binding Protocol3
218. Add save-data client hint3
219. console.assert(boolean_expression)3
220. Add Module Preload <link rel="modulepreload">3
221. Add Media Queries Ranges3
222. Support data suggestion: `Intl.PluralRules`3
223. Add Array.prototype.flat3
224. Animating SVG paths using CSS2
225. Add in Range.createContextualFragment2
226. Add "Controlling Font Display Per Font-Family via @font-feature-values"2
227. Add the "frame" HTML tag : some browsers don't support it !2
228. Network Service Discovery2
229. Arithmetic coded JPEG support2
230. font-min/max-size2
231. strong2
232. Picture-in-picture API2
233. Add HTTP 103 Early Hints2
234. Add float: footnote to CSS32
235. Why is there no event constructors?2
236. Add `q` (quarter-millimeters) length unit2
237. Add color-mod() | color() function - CSS Color Module Level 42
238. CSS 3 property: text-autospace and text-spacing2
239. SHA2 certificates2
240. InputDeviceCapabilities API2
241. CSS.escape()2
242. add csp lv2 violation event2
243. Can I use X3D?2
244. Add box-suppress2
245. The !important css thing. It's very !important ;).2
246. window.scroll2
247. CSS Values and Units Module Level 4 ("CSS 4 length"): vi, vb, ic, lh, and rlh2
248. UTF-8 Dingbats2
249. longdesc attribute support2
250. autocorrect for input fileds2
251. Hyphenation Options2
252. HTTP immutable responses2
253. Add ES7/2016 SIMD2
254. history.scrollRestoration2
255. HTTP Strict Transport Security Preload2
256. Add DNSSEC support2
257. Cache-Control 2
258. Support for Multiline Strings2
259. font-language-override2
260. Visual Viewport API2
261. Add <time> element2
262. SVG viewport-fill-opacity property support2
263. Input type=range with "multiple" attribute2
264. browserconfig.xml support info2
265. Please add line-height-step2
266. grid-template-columns2
267. Support for 'debugger;' in dev tools2
268. Add KeyboardEvent.repeat compatibility info2
269. Add Web Budget API2
270. Include the new image format: FLIF2
271. Browser support for Focus Management function2
272. Add suport for MediaDevices.enumerateDevices()2
273. Individual transform properties2
274. valueAsDate usage2
275. Add :any-link pseudo-class2
276. IPv6 support in web browsers2
277. audio / video autoplay attribute and play function2
278. Add `import.meta`2
279. Feature addition: Element.toggleAttribute2
280. Spatial Navigation support2
281. New feature request: x25519 Key Exchange2
282. Page Lifecycle API2
283. CSS unit 'cap' (cap-height)2
284. Add support for the __Host- and __Secure-2
285. Support for nested calc expressions in CSS values2
286. Add place-content, place-items, place-self2
287. Add classList.replace()2
288. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
289. CSSKeyframesRule2
290. Screen Capture2
291. Add transform-box2
292. ReportingObserver support2
293. Inert property for objects that should currently not be focused2
294. XMLHTTPRequest (1)2
295. Abortable fetch()1
296. getShaderPrecisionFormat1
297. (function () {}).toSource()1
298. Support for ImageBitmapRendereingContext1
299. TextMetrics API1
300. Split background-size from CSS3 Background-image options1
301. window.watchMedia()1
302. Badging API1
303. The `autocapitalize` attribute of <input>s1
304. Observable1
305. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
306. HTML5 data blocks1
307. Add support for control.labels 1
308. window.top & window.parent1
309. support for HTMLTableElement.createTBody1
310. Previous Element Selector1
311. Support XMLDocument1
312. NodeList/HTMLCollection1
313. image tag1
314. MediaStream Image Capture1
315. webkitGetAsEntry1
316. Add Navigation Timing Level 21
317. Add support information for SVG's getIntersectionList1
318. getFilesAndDirectories1
319. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
320. user-modify1
321. orientationchange Event1
322. Add removeAttribute support1
323. [Feature Policy: sub-feature] Sandbox features1
324. create @Media Types1
325. WebGL extensions1
326. HTML oninvalid Event Attribute1
327. EventTarget constructor1
328. Add CSS.registerProperty to caniuse1
329. Add new SVG filter effects1
330. Add compatibility for FormData1
331. Add support for CSS rule @document1
332. window.location.replace1
333. Feature addition: navigator.mediaCapabilities.decodingInfo()1
334. Support of sms: and mms: in mobile browsers is not clear1
335. Web locks1
336. Notification.actions1
337. Please include `:blank` pseudo-class1
338. Priority hints API1
339. Add previousSibling and previousElementSibling1
340. SVG 1.21
341. CSS Inline Layout1
342. Add compat data for CSS scrollbars spec1
343. SVG symbols in CSS1
344. wakeLock1
345. Add support for prefers-color-scheme CSS media query1
346. window.addListener()1
347. Add HTMLInputElement.select()1
348. filename*=UTF-8''...1
349. html5 image attribute usemap1
350. Support Intrinsic Size Attribute1
351. add ServiceWorker.periodicSync1
352. Add `onunload` event1
353. 'imagesizes' & 'imagesrcset' for <link rel="preload">1
354. Add support information for the translate attribute1
355. Content-Security-Policy: block-all-mixed-content1
356. Add translate attribute1
357. What is the support on clear: both?1
358. window.prompt, window.alert, window.confirm1
359. Add information about CSS pseudo selector :defined1
360. embed tag 1
361. Keyboard Lock1
362. Add H2 ORIGIN frame support1
363. Cannot find cancelBubble1
364. EventTarget Constructor1
365. getClientRects1
366. support for "offsetParent"?1
367. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler1
368. Indicate which browsers use the HTML5 Parsing algorithm.1
369. input setRangeText1
370. Async iterators / for await of1
371. Geometry Interfaces Module Level 11
372. Text-overflow level 41
373. add String.raw support1
374. Add PNG cursor1
375. List support for the window.fetch keepalive option1
376. Add controlsList property1
377. window.visualViewport1
378. Accelerated Shape Detection in Images1
379. SSML1
380. /deep/ combinator1
381. New feature: CSS Typed Object Model (CSS Typed OM)1
382. Browser support for displaying the unicode block "Combining Diacritical Marks for Symbols"1
383. [CSS] suggest feature to be added: max-inline-size1
384. ScrollTo is not referenced1
385. add Accessibility Object Model1
386. SVG image auto height1
387. Adding Khronos gITF 2.0 for 3D models1
388. JS add oncuechange1
389. [HTTP Header] Accept-CH-Lifetime1
390. add support for PerformanceLongTaskTiming1
391. Module Worker support1
392. Add query: prefers-dark-interface1
393. add iframe.csp1
394. Support for Unicode and spaces in URL1
395. AudioWorklet1
396. add ime-mode1
397. add Element.scroll、scrollTo、scrollBy methods support data.1
398. add ::theme and ::part selectors1
399. Add `onpagehide` support data1
400. add window-inactive pseudo-class1
401. getEventListeners not listed1
402. Suggestion: support for margin-collapse?1
403. Array.prototype.findIndex1
404. scrollWidth is not listed 1
405. Add: Tracking Preference Expression APIs1
406. Add isSecureContext feature to list1
407. Support aria-hidden html property1
408. add for...of loops1
409. Add System Colors item1
410. Missing computed property names1
411. Support data for Unicode flag on HTML pattern attribute1
412. CSS Values and Units Function Notations1
413. detect bigint / arbitrary precision integers1
414. HTTP Content-encoding: LZFSE1
415. feature onAppInstalled1
416. for ... of support data1
417. place-items shorthand for justify and align1
418. ExtendableEvent.waitUntil()1
419. Add support for text-decoration-skip-ink1
420. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
421. Add support tables for document.documentElement.clientWidth1
422. Node.contains1
423. WebCrypto Key Discovery1
424. [HTTP Header] Cross-Origin-Window-Policy1
425. {row,column}-gap, applied to multicolumn, flex, and grid layouts1
426. color-gamut media feature from Media Queries 41
427. :truncated1
428. treeWalker / nodeIterator support needs to be added1
429. Include naviagator.mediaSession and other media related api1
430. Add hwb() CSS function1
431. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
432. focusNode1
433. img.decode() and decoding attribute1
434. Character-based alignment in a table column using text-align1
435. Add Media Session API Coverage Information1
436. css- media-query max-scroll-y1
437. Video media in image contexts1
438. Add information for the webcal and webcals protocols for subscribing to iCalendars1
439. Input Events Level 1 and 21
440. Javascript pseudoprotocol1
441. Chained selectors1
442. HTTP content-encoding: zstd1
443. .getPointAtLength()1
444. ::-webkit-file-upload-button1
445. Support for Canvas isPointInPath()1
446. add captureVisibleTab1
447. CSS Round Display1
448. USDZ file format1
449. Reflect object1
450. [HTTP header] Cross-Origin-Resource-Policy1
451. Add pls pipeline-operator1
452. Suggestion: overflow(-[xy])? with 'overlay' value1
453. Add support for document.queryCommandState1
454. Suggestion: MediaRecorder.isTypeSupported supported types/codecs1
455. Page-margin boxes (@top-center, etc)1
456. @document1
457. IANA time zone names in timeZone option1
458. CSS page property (for printing)1
459. Support for console.groupCollapsed1
460. Add data for imageSmoothingEnabled Property (Canvas-related)1
461. column combination1
462. New filesystem api?1
463. document.importNode1
464. Support setCapture and releaseCapture for mouse1
465. <video> `playsinline` attribute1
466. Canvas context getTransform() function.1
467. Internationalized Domain Name1
468. Vast & VMAP1
469. CaretPosition missing1
470. support data suggestion: DOM event constructors ?1
471. JavaScript Symbol1
472. Javascript Built-In MAP1
473. Add -webkit-touch-callout?1
474. Information about window.location.ancestorOrigins1
475. [CSS Level 4 pseudo-class] :user-error1
476. String.prototype.split() with a regex with grouping ( parentheses ).1
477. CSS tag {content: url()}1
478. apple-touch-icon1
479. Cannot see |ImageCapture| entry in the web interface.1
480. KeyboardEvent.isComposing1
481. caretPositionFromPoint1
482. AnimationEvent support1
483. Please add iFrame element contentWindow property1
484. Cookies: max-age1
485. string-set1
486. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
487. Add HTTP 307 & 308 redirects1
488. toLocaleString('pt-BR',{style: 'currency', currency:'BRL'})1
489. Add CSS viewport-percentage length units 'vi' and 'vb'1
490. Add Range.getBoundingClientRect browser support table1
491. [Suggestion] display: fullscreen1
492. Add a matrix entyre for opentype-with-cff21
493. HEVC in Safari1
494. Add: Task Scheduler API Specification 1
495. Please add XMLHttpRequest.responseURL1
496. Add High Resolution Time Level 31
497. min/max-device-width/height1
498. Add support for mediacapture-output API's sinkID1
499. document type1
500. WindowTimers.setInterval()1
501. video/audio events like loadedemetadata1
502. Add PerformanceObserver1
503. Add visibility: collapse1
504. attachEvent event handler missing from CanIUse1
505. Add HTTP_ORIGIN feature1
506. Support Tables for Gesture Events1
507. display: table-caption?1
508. Window setInterval() Method1
509. ImageBitmap1
510. Slash-separated color functions1
511. Add 'animated GIF as favicon'?1
512. Add hreflang attribute usage support for link element1
513. SVG sprites with <symbol> and <use>1
514. Presentation API1
515. Add XSL to caniuse1
516. Add support for CSS3 move-to property1
517. window.navigator.language, .languages1
518. dblclick Event1
519. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
520. Feature request: navigator.language1
521. Add transitionstart event1
522. Add support for the HTTP header X-Download-Options1
523. Add support for addHitRegion1
524. CanIuse @charset "<charset>"1
525. Support the W3 Web Annotation standard (W3C Recommendation)1
526. aria-labelledby1
527. New top level domains (TLD)1
528. SHA1 certificates1
529. CSS touch-action level 2 values1
530. Add CSS display:contents1
531. getTotalLength()1
532. document.referrer1
533. CSS: overflow-anchor1
534. Missing `StorageQuota` support1
535. webshareapi1
536. add "document.contentType"1
537. Alt-Svc header browser support info: consider adding1
538. Add mediaSession API 1
539. Encoding API compatibility table1
540. Please track the various HTTP Set-Cookie options supported by browsers1
541. Add ECC certificates1
542. Please add String.prototype.normalize()1
543. Missing a check for msConvertURL() on DragEvent1
544. new.target1
545. What about Standby API?1
546. Support for window.innerHeight, window.innerWidth, window.outerHeight, window.outerWidth1
547. add micropub1
548. event.path1
549. function.name1
550. SharedMemory/Atomics1
551. Add "Named function expressions"1
552. -webkit-box-orient is not found1
553. reflected-xss missing1
554. Add CSS font-synthesis1
555. CSS4 - Specifying profiled colors: the color() function1
556. animateMotion for SVG1
557. add WebMention1
558. event.ctrlKey1
559. Open search autodiscovery1
560. add mouse event positions event.offsetX and event.offsetY1
561. srcset/sizes attribute / picture element support in SVG1
562. gesturestart, gesturechange, gestureend events for trackpads1
563. @document CSS 1
564. audio / video .canPlayType(MIMEtype)1
565. show support for namespacing; for example <svg: namespace 1
566. Add compositionstart/end/update event1
567. Consider add 'getRootNode'?1
568. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 1
569. The xml:space attribute1
570. RFC7692 Compression Extensions for WebSocket1
571. support for Performance-Timeline & High-Resolution-Time1
572. Function.length / Function.prototype.length1
573. Add raw sockets API1
574. Native Messaging?1
575. NetworkInformation.downlinkMax1
576. Support JavaScript Class and Property Decorators (ES Stage 2 Draft)1
577. Add <script type="module"> and module workers1
578. Javascript - window.onorientationchange 1
579. add css property aspect-ratio1
580. Add CSS animation timing function spring()1
581. Please add information about ImageData constructor1
582. Add ES6 Spread operator1
583. Please add support for getTimezoneOffset()1
584. Link headers1
585. allowfullscreen attribute for iframes1
586. Edge and IE don't support IndexedDB in web workers1
587. Add window.frameElement to CanIUse1
588. window.localMediaStream is not listed1
589. background-composite1
590. Add: window.locationbar window.menubar window.personalbar window.statusbar window.toolbar1
591. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
592. Add windows-theme media query selector1
593. add onstorage1
594. Add web assembly/wasm1
595. IETF RFCs1
596. HTMLImageElement.complete1
597. setTimeout and setInterval callback parameters1
598. Device-Memory Client Hint & navigator.deviceMemory JS API1
599. Add <data> element1
600. URLSearchParams.prototype.sort1
601. Add data for link rel="alternate"1
602. Add support stats for String.prototype.repeat()1
603. Add app-region?1
604. SVG viewport-fill property support1
605. allowtransparency1
606. Add CSS text-combine-upright property 1
607. Can I use selectedOptions ?1
608. x-webkit-speech1
609. Range.surroundContents()1
610. Screen.availLeft1
611. Support for the frame-ancestors directive1
612. stopImmediatePropagation,stopPropagation1
613. add aria-required to caniuse, if not already there1
614. ActiveX1
615. HTTP Trailers1
616. Drag and Drop API - move constraints1
617. Drag and Drop API - ghost image with customizable opacity1
618. Support info for the <track> element1
619. Object.hasOwnProperty1
620. -ms-overflow-style1
621. MediaCapture Screen Share1
622. window.event1
623. Add a footnote regarding HTMLAudioElement1
624. Grid-auto-flow1
625. ew-resize1
626. oncontextmenu1
627. Add ALPN and NPN notes to HTTP21
628. Add css-timing 1
629. The <slot> element1
630. Default function parameters1
631. DeviceOrientation and DeviceMotion events on insecure origins1
632. Node.isSameNode() and Node.isEqualNode() isn't listed on caniuse1
633. Add media feature display-mode1
634. Geolocation on non-secure sites1
635. aria-current1
636. Please add Progressive web app manifest.1
637. Audio Output Devices API: wd1
638. Add autocorrect, autocapitalize, autocomplete attributes1
639. Add the (view-mode) media feature1
640. navigator.connection1
641. Adding Silverlight usage stats1
642. Can not search hasAttribute1
643. Support for CSS3 background-repeat-x and background-repeat-y properties1
644. Can I use Reporting API1
645. Basic Authentication: AuthName directive1
646. request support for 'accept-charset'1
647. add CSS Extensions meant for renaming1
648. Add CSS4 Grid structural selectors1
649. onerror event on iframe1
650. Add `multipart/x-mixed-replace`1
651. HTTP2 Server Push1
652. findIndex Array method doesn't added to caniuse.com DB1
653. &euro; and other html codes1
654. Which browsers adhere to ETag?1
655. CanvasRenderingContext2D.ellipse()1
656. image urls with GET data1
657. HTMLElement.offsetTop1
658. aria-label0
659. HTML DOM selectedIndex attribute (drop-down list)0
660. Track CSS `scroll-snap-stop`0
661. Add Object.prototype.watch method0
662. marquee0
663. ie behavior0
664. window.frames list0
665. window.screen0
666. HTML5 constraint validation API - setCustomValidity0
667. Add Object.getNotifier(obj)0
668. Payment Handler API0
669. ::shadow0
670. documentMode-1
671. input type password not included-2