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.

SuggestionVotes
1. Support for CSS3 overflow-x and overflow-y properties23
2. quic support or compatibility?21
3. http://dev.w3.org/html5/spec-LC/history.html#unloading-documents21
4. I suggest support for TransferableObject types (of which there are several) 18
5. I suggest adding statistics for Aural style sheets which contain CSS properties such as "speak....18
6. I would like to see document.readyState supported values in the caniuse.com18
7. The <keygen> tag is a bit of a mess when it comes to support, so it would be quite a useful ad...17
8. css3 animation-play-state please17
9. The bdi (bidi isolate) element, added in HTML5 to ease inserting RTL text into an LTR page or vice-v...17
10. CSS3 marquee support. 17
11. I have just noticed that the onended event of the HTML5 <audio> tag is supported in Firefox 11...16
12. Add column-span and column-fill features16
13. mediagroup content attribute, MediaController object, VideoTrackList, AudioTrackList objects16
14. How about overflow-scrolling? iOS Safari needs the webkit vendor prefix for example. Can't find ...15
15. Soft hyphen: html entity &shy;15
16. Browser support for crossorigin attribute on img/video (as described in ) would be useful15
17. input[autocomplete] (values besides on/off) 15
18. XSLT Support table15
19. text-wrap15
20. The Output Element 15
21. css/svg property dominant-baseline14
22. Add theme-color Meta Tag14
23. Include `baseline-shift` CSS property14
24. CSS3 Template Layout 14
25. SVGZ-specific support table since iOS < 4.2 doesn't support it, but does support SVG. Not su...14
26. Show browser support for CSS border-collapse and border-spacing (and there might be other table-rela...13
27. requestAutoComplete 13
28. I couldn't find a compatibility table for animation-fill-mode. Currently needs browser prefixe...12
29. device-cmyk css feature12
30. https://developer.mozilla.org/en-US/docs/Web/Events/wheel12
31. Built-in PDF viewer support11
32. list-style-type 11
33. What about showing support for various link attributes, like "subresource" or "dns-pr...11
34. CSS3 min() and max() functions as values for properties that accept <dimension> as a value.11
35. For printing support for the size:landscape option to tell the browser what page orientation we want...11
36. Emoji display support11
37. I suggest adding information about support for alternate HTTP methods such as PUT and PATCH.11
38. Please add support tables for x-xss-protection security header. Thanks!11
39. geo: url support - 11
40. window.onerror - / - particularly mobile browser support10
41. line-height support and the differences in rendering between webkit&trident and other engines.10
42. Quota Management API 10
43. Check browser support for displaying MJPEG files. This is a motion JPEG file format that is supporte...10
44. Why do white-space not appear to be in the list? :)10
45. document.elementsFromPoint10
46. The mouseenter and mouseleave events10
47. accesskey attribute on non-focusable elements (should cause a click element to fire9
48. Add Array.prototype.includes9
49. Keyboard events (keypress, keyup, keydown, textinput) - see here 9
50. saveAs does not seem to be on the site (or else, I'm just incapable of finding it). It would be ...9
51. the withCredentials property in xhr = new XMLHttpRequest() is used to check for XMLHttpRequest suppo...9
52. Show support table with history as time-based, instead of versions-back-based. With Chrome and IE ve...9
53. webcl?9
54. Webkit-based browsers extend the MediaQuery W3C Standard with specific queries for animation, transi...9
55. WebExtensions (browser extensions)9
56. Support for window.scrollX and window.scrollY9
57. Progressive JPEGs start to show on pages faster, from low quality and eventually getting their 100% ...8
58. Entries for href values including `tel:1234567` and `sms:1234567`8
59. Show results for Firefox ESR (currently 17.07).8
60. script tag onerror attribute8
61. CSS3 module "Generated Content for Paged Media" and especially the target-counter function8
62. Support for SVG's "shape-rendering" CSS property. 8
63. I'd like to see border-corner-shape added. It would be a nice feature when implemented in browse...8
64. CSS3 Speech Module Which browsers support it? See8
65. webM alpha transparency8
66. Add System Info API 7
67. break-inside for columns.7
68. I would like to know which browsers support the forceSpellCheck() method (7
69. blink tag7
70. list-style-image7
71. Add support for CSS's @import7
72. DataChannel WebRTC JS API7
73. Based on this page I suggest to add addRule and insertRule Thanks7
74. Track document.registerElement I think a test just to see if it is defined would be sufficient. It...7
75. Add browser support for text-decoration-skip [ - Not sure if any browsers support it yet, but someth...7
76. column-span and other column-* proprieties of CSS3 Multi-column layout module7
77. CSS image() functional notation (e.g. for background-images etc). See 7
78. Add navigator.mediaDevices7
79. Embedded color profiles in JPEG images.7
80. clipboardData: text, rtf, html, image, etc.7
81. Geofencing API7
82. Support for list-style-type7
83. Can I use ECDSA certificates?6
84. ECMAScript 6 collection: Set 6
85. Browser support for RTP streams?6
86. Web NFC API6
87. DNS-based Authentication of Named Entities (DANE)6
88. Add nextElementSibling6
89. draggable option6
90. CSS <angle> - particularly the "turn" unit6
91. The "auto" value for the dir attribute, added in HTML5 to ease inserting text of unknown d...6
92. HttpOnly flag for cookies, what browsers support? it would be nice to have that in the caniuse.com 6
93. font-variant-numeric6
94. Javascript: Array.prototype.fill() 6
95. SVG Foreign Object is a way to combine different XML namespaces elements into the SVG. 6
96. The 'media' attribute from the source element for HTML5's audio and video elements. Thi...6
97. "GeometryUtils" - part of the CSSOM. Provides much better position information than existi...6
98. domElement.style.setProperty()6
99. Object.assign6
100. http://www.w3.org/TR/html-json-forms/6
101. TCP Fast-Open. Now that Linux kernels enable this by default (and web servers likely won't be ...6
102. Which browsers support colgroup completely?6
103. Bitmap images inside SVG files. Some browsers that support SVG, will not show embedded bitmap image...6
104. html5 canvas.toblob6
105. Dialogs implemented using separate documents window.showModalDialog() 6
106. More details on File Blobs6
107. Add browser support for toggle()6
108. Can I use "onmouseover", "onmouseout"?5
109. add "HTTP status code headers"5
110. Scheme-less URIs, aka the relative URIs. See5
111. location.origin5
112. Load event support on link nodes to show when a stylesheet is finished loading. See for a discussio...5
113. "click" function on anchor DOM element (a)5
114. Please add "imageSmoothingEnabled". Chrome supports it unprefixed. IE11, Firefox, and Saf...5
115. HTML5 canvas.captureStream()5
116. vector-effect5
117. Add more CSS3 media query sub-types: e.g. 'orientation' and 'aspect-ratio'5
118. WeakMap API 5
119. X-Content-Type-Options: nosniff5
120. HTML5 Events Like onoffline, onpopstate, etc.5
121. designMode5
122. empty-cells (5
123. Add stale-while-revalidate HTTP header support indication5
124. registerContentHandler(), registerProtocolHandler(), and friends5
125. image-rect isn't supported by anybody but Mozilla as far as I can tell, but I'd love it to b...5
126. Textarea wrap attribute (off, soft, hard, virtual, physical)5
127. MediaStream Recording (5
128. Why don't we add quotes property? 5
129. getElementsByName5
130. playbackRate in video5
131. <meta name="apple-mobile-web-app-capable" content="yes" />5
132. "border-corner-shape" 5
133. form input property "valueAsNumber"4
134. Flag storage that is not available under private mode4
135. Please add :autofill to the DB4
136. Luminosity media query 4
137. CSS Box Alignment Module Level 34
138. Add auxclick?4
139. Add beforeinput event4
140. MouseEvent4
141. Add: the 'isolation' CSS property4
142. New feature request: OCSP must-staple4
143. Add createImageBitmap4
144. Add supported elliptical curves (HTTPS/TLS)4
145. Add browser support info for the HTTP Cache-Control header "immutable" flag4
146. svg @preserveaspectratio4
147. Messaging API (SMS) 4
148. Add WebDriver4
149. 'caniuse.com' should have small-caps (and other font variants?) broken out as a separate fea...4
150. Support for XPath 2.0 (interesting for a lot of new functions, like base-uri(), matches() etc.)4
151. EventArgs.buttons is new for mouse events (www.w3.org/TR/DOM-Level-3-Events/#events-MouseEvent-butto...4
152. track element and TextTrack object4
153. target-new4
154. feature: track ReadableStream4
155. Add table-layout support, whether browers: - implement the 'fixed' layout properly, evenly ...4
156. window.Touch support for browsers: - returns the Touch object constructor on touch events supporting...4
157. font-weight: (CSS3) Which browsers support numeric weights (200, 300) as opposed to simply "bol...4
158. Touch Icons, per 4
159. svg transform matrix4
160. CSS Shaders - 4
161. @host This CSS @-rule applies to the surrounding element of a template. See 4
162. track arraybuffer support for binary websockets4
163. rel="next"4
164. extend-to-zoom4
165. Add ProgressEvent4
166. Web intents/Web Activities 4
167. Add `navigator.doNotTrack` and DNT support tables4
168. lastModified HTML5 DOM property4
169. image-resolution. I've seen this as a good alternative for retina images as opposed to backgro...4
170. user-input 4
171. Add prefers-reduced-motion4
172. http://www.w3.org/TR/web-alarms/4
173. .style.setAttribute() Does every browser support it? Sometimes it's hard to know it it's not...4
174. Multicolor Glyph support3
175. Web Authentication (webauthn)3
176. Support for line-break3
177. CSS Property caption-side is missing?3
178. Add text-underline-position property3
179. css3 border-color3
180. CSS minmax()3
181. Support SVG width/height = auto3
182. @document, as described in & 3
183. I suggest you to put browser acceptance of the javascript property clientHeight3
184. Secure Cookie flag3
185. SharedArrayBuffer support3
186. Track WritableStream, ReadableStream.prototype.pipeTo, TransformStream, ReadableStreamByobReader3
187. Trailing commas3
188. Add event currentTarget property3
189. Add SVG `use` with external reference3
190. Add support table for CSP 3.0 compliance3
191. Add Expect-CT header3
192. `content: leader('.');`3
193. Add current browser support for HTML5 tag "hgroup" (3
194. ex unit3
195. file input type supported browser3
196. Add support for FlyWeb API3
197. Input type=email with "multiple" attribute3
198. Add 'require-sri-for' CSP Directive3
199. text-security missing in list of features3
200. Missing font-synthesis CSS 3 property3
201. The hanging-punctuation property: Currently unsupported by any browser, but it would be nice to ...3
202. Number.prototype.toLocaleString() has no data3
203. Add support for the svg paint-order property3
204. SVG-in-OT fonts3
205. CSS "visibility" (hidden/visible/etc)3
206. column-break-after atm only via: -webkit-column-break-after3
207. target-new3
208. UI Events builds on DOM Event Level 3, it is specified here3
209. Would like to see support for XMLSerializer object and document.implementation.createDocument and eq...3
210. Please add a support table for the CanvasRenderingContext2D.filter property that firefox supports.3
211. Wake Lock API3
212. browserconfig.xml support info2
213. Animating SVG paths using CSS2
214. Add save-data client hint2
215. audio / video autoplay attribute and play function2
216. console.assert(boolean_expression)2
217. JavaScript: Tail Call Support information missing2
218. strong2
219. CSS Paint API2
220. Network Service Discovery2
221. Add KeyboardEvent.repeat compatibility info2
222. Hyphenation Options2
223. history.scrollRestoration2
224. longdesc attribute support2
225. autocorrect for input fileds2
226. Firefox cursor:grab & cursor:grabbing2
227. Add ES7/2016 SIMD2
228. Input type=range with "multiple" attribute2
229. Add :any-link pseudo-class2
230. Add the "frame" HTML tag : some browsers don't support it !2
231. Individual transform properties2
232. Browser support for Focus Management function2
233. Add other values of `user-select` property2
234. Support for Multiline Strings2
235. The !important css thing. It's very !important ;).2
236. Support for 'debugger;' in dev tools2
237. valueAsDate usage2
238. UTF-8 Dingbats2
239. Add suport for MediaDevices.enumerateDevices()2
240. SVG viewport-fill-opacity property support2
241. Add in Range.createContextualFragment2
242. XMLHTTPRequest (1)2
243. HTTP Strict Transport Security Preload2
244. Include the new image format: FLIF2
245. Can I use X3D?2
246. Add transform-box2
247. Add box-suppress2
248. Add color-mod() | color() function - CSS Color Module Level 42
249. CSS.escape()2
250. Add justify-content: space-evenly2
251. Add classList.replace()2
252. Add HTTP 103 Early Hints2
253. Content-Security-Policy: script-nonce2
254. Add background-clip: text2
255. Please add line-height-step2
256. Why is there no event constructors?2
257. CSS env() support2
258. HTTP immutable responses2
259. Arithmetic coded JPEG support2
260. font-min/max-size2
261. New feature request: x25519 Key Exchange2
262. Add `q` (quarter-millimeters) length unit2
263. Object.entries feature?2
264. Add DNSSEC support2
265. img.decode() and decoding attribute2
266. Add Media Queries Ranges2
267. Add :host/:host-context pseudo class2
268. SHA2 certificates2
269. Support for nested calc expressions in CSS values2
270. Date.prototype.toLocaleDateString2
271. CSS 3 property: text-autospace and text-spacing2
272. Add referrerpolicy attribute2
273. Object.values and Object.entries2
274. Add <time> element2
275. Entries API2
276. Add data for AV1 supported browser?2
277. Directional focus navigation: the nav-up, nav-right, nav-down, nav-left properties2
278. Add Clear Site Data header2
279. InputDeviceCapabilities API2
280. New top level domains (TLD)1
281. CSS unit 'cap' (cap-height)1
282. Add CSS matrix3d support1
283. aria-labelledby1
284. getTotalLength()1
285. Add CSS display:contents1
286. CSS touch-action level 2 values1
287. Add overscroll-action1
288. String.prototype.split() with a regex with grouping ( parentheses ).1
289. add micropub1
290. function.name1
291. AnimationEvent support1
292. caretPositionFromPoint1
293. support data suggestion: DOM event constructors ?1
294. JavaScript Symbol1
295. new.target1
296. srcset/sizes attribute / picture element support in SVG1
297. Add transitionstart event1
298. Add support for the HTTP header X-Download-Options1
299. Add support for HTTP header X-Permitted-Cross-Domain-Policies1
300. Feature request: navigator.language1
301. Add CSS font-synthesis1
302. event.ctrlKey1
303. -webkit-box-orient is not found1
304. SHA1 certificates1
305. Support the W3 Web Annotation standard (W3C Recommendation)1
306. create @Media Types1
307. orientationchange Event1
308. Add removeAttribute support1
309. WebGL extensions1
310. Previous Element Selector1
311. image tag1
312. Suggestion for caniuse.com: Which browsers.versions support multiple tbody elements in a single table?1
313. HTML oninvalid Event Attribute1
314. Add Cache Storage API / Cache API1
315. reflected-xss missing1
316. Shape Detection API: Face Detection, Barcode Detection, Text Detection1
317. HTML5 data blocks1
318. The `autocapitalize` attribute of <input>s1
319. add mouse event positions event.offsetX and event.offsetY1
320. Inert property for objects that should currently not be focused1
321. getShaderPrecisionFormat1
322. add WebMention1
323. gesturestart, gesturechange, gestureend events for trackpads1
324. NodeList/HTMLCollection1
325. CSS4 - Specifying profiled colors: the color() function1
326. CanIuse @charset "<charset>"1
327. window.navigator.language, .languages1
328. Add support for CSS3 move-to property1
329. Window setInterval() Method1
330. CSS: overflow-anchor1
331. add "document.contentType"1
332. webshareapi1
333. Missing `StorageQuota` support1
334. Add XSL to caniuse1
335. SVG sprites with <symbol> and <use>1
336. String.prototype.padStart1
337. animateMotion for SVG1
338. CSSKeyframesRule1
339. Add mediaSession API 1
340. Alt-Svc header browser support info: consider adding1
341. Presentation API1
342. dblclick Event1
343. Add support for addHitRegion1
344. document.referrer1
345. Default function parameters1
346. window.prompt, window.alert, window.confirm1
347. Add Navigation Timing Level 21
348. getFilesAndDirectories1
349. Add nomodule (<script> tag attribute)1
350. focusNode1
351. browser coverage for service worker background-sync1
352. Paint Timing API1
353. Need full 3gp browser compatibility chart.Does it chrome browser supports 3gp format1
354. Support for CSS grid's subgrid1
355. MediaStream Image Capture1
356. Support XMLDocument1
357. (function () {}).toSource()1
358. Abortable fetch()1
359. window.top & window.parent1
360. Support for ImageBitmapRendereingContext1
361. grid-template-columns1
362. Support data suggestion: `Intl.PluralRules`1
363. EventTarget constructor1
364. Add new SVG filter effects1
365. JS object to an array1
366. Add Module Preload <link rel="modulepreload">1
367. ExtendableEvent.waitUntil()1
368. Add support for text-decoration-skip-ink1
369. Please add support for supported x509 extensions for ʜᴛᴛᴘꜱ certificates1
370. Add support tables for document.documentElement.clientWidth1
371. WebCrypto Key Discovery1
372. color-gamut media feature from Media Queries 41
373. Input Events Level 1 and 21
374. Add information for the webcal and webcals protocols for subscribing to iCalendars1
375. {row,column}-gap, applied to multicolumn, flex, and grid layouts1
376. :truncated1
377. treeWalker / nodeIterator support needs to be added1
378. Add Dynamic Module Imports1
379. Include naviagator.mediaSession and other media related api1
380. Add AbortController 1
381. JavaScript Promises.finally()1
382. Add "Controlling Font Display Per Font-Family via @font-feature-values"1
383. Add Media Session API Coverage Information1
384. css- media-query max-scroll-y1
385. Video media in image contexts1
386. Observable1
387. Text-overflow level 41
388. CanvasRenderingContext2D.ellipse()1
389. Grid-auto-flow1
390. add syncmanager1
391. Feature Policy1
392. Support for CSS3 background-repeat-x and background-repeat-y properties1
393. Add CSS animation timing function spring()1
394. Support JavaScript Class and Property Decorators (ES Stage 2 Draft)1
395. Add Web Budget API1
396. add css property aspect-ratio1
397. add aria-required to caniuse, if not already there1
398. aria-current1
399. min/max-device-width/height1
400. HEVC in Safari1
401. [Suggestion] display: fullscreen1
402. Add High Resolution Time Level 31
403. Lookbehind in JavaScript regex1
404. Add css-timing 1
405. Add support for control.labels 1
406. Add: Task Scheduler API Specification 1
407. Consider add 'getRootNode'?1
408. Native Messaging?1
409. navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler1
410. Add previousSibling and previousElementSibling1
411. Server Timing1
412. Async iterators / for await of1
413. input setRangeText1
414. Keyboard Lock1
415. Content-Security-Policy: block-all-mixed-content1
416. Add translate attribute1
417. Add support for CSS rule @document1
418. font-language-override1
419. URLSearchParams.prototype.sort1
420. Add app-region?1
421. Add raw sockets API1
422. Add <data> element1
423. Visual Viewport API1
424. SVG symbols in CSS1
425. setTimeout and setInterval callback parameters1
426. Device-Memory Client Hint1
427. display: table-caption?1
428. SharedMemory/Atomics1
429. navigator.connection1
430. string-set1
431. Add CSS4 Grid structural selectors1
432. Basic Authentication: AuthName directive1
433. Adding Silverlight usage stats1
434. Add `multipart/x-mixed-replace`1
435. image urls with GET data1
436. HTMLElement.offsetTop1
437. Which browsers adhere to ETag?1
438. request support for 'accept-charset'1
439. add CSS Extensions meant for renaming1
440. attachEvent event handler missing from CanIUse1
441. &euro; and other html codes1
442. HTTP2 Server Push1
443. onerror event on iframe1
444. Can not search hasAttribute1
445. Add support for document.queryCommandState1
446. Can I use Reporting API1
447. Suggestion: Int64 UInt64 (Firefox only AFAIK)1
448. Support for the frame-ancestors directive1
449. Vast & VMAP1
450. createImageBitmap1
451. Please add support for getTimezoneOffset()1
452. Link headers1
453. Magnetometer support1
454. Gyroscope sensor1
455. Add info about css user-modify and -webkit-user-modify:read-write-plaintext-only 1
456. Open search autodiscovery1
457. NetworkInformation.downlinkMax1
458. allowfullscreen attribute for iframes1
459. Edge and IE don't support IndexedDB in web workers1
460. CaretPosition missing1
461. stopImmediatePropagation,stopPropagation1
462. window.scroll1
463. Add <script type="module"> and module workers1
464. Please add information about ImageData constructor1
465. Add ES6 Spread operator1
466. Canvas context getTransform() function.1
467. Internationalized Domain Name1
468. findIndex Array method doesn't added to caniuse.com DB1
469. Add autocorrect, autocapitalize, autocomplete attributes1
470. Add ALPN and NPN notes to HTTP21
471. The <slot> element1
472. Slash-separated color functions1
473. DeviceOrientation and DeviceMotion events on insecure origins1
474. Support Tables for Gesture Events1
475. Node.isSameNode() and Node.isEqualNode() isn't listed on caniuse1
476. Please add Progressive web app manifest.1
477. Audio Output Devices API: wd1
478. Add media feature display-mode1
479. Javascript - window.onorientationchange 1
480. @document CSS 1
481. toLocaleString('pt-BR',{style: 'currency', currency:'BRL'})1
482. Add Range.getBoundingClientRect browser support table1
483. Add HTTP 307 & 308 redirects1
484. Add print-color-adjust1
485. Add support for mediacapture-output API's sinkID1
486. audio / video .canPlayType(MIMEtype)1
487. ImageBitmap1
488. document type1
489. Add HTTP_ORIGIN feature1
490. Geolocation on non-secure sites1
491. window.event1
492. Add a footnote regarding HTMLAudioElement1
493. WindowTimers.setInterval()1
494. -ms-overflow-style1
495. Add the (view-mode) media feature1
496. Add visibility: collapse1
497. Add PerformanceObserver1
498. MediaCapture Screen Share1
499. Object.hasOwnProperty1
500. Support info for the <track> element1
501. Drag and Drop API - ghost image with customizable opacity1
502. ew-resize1
503. oncontextmenu1
504. Drag and Drop API - move constraints1
505. HTTP Trailers1
506. ActiveX1
507. video/audio events like loadedemetadata1
508. Add float: footnote to CSS31
509. New filesystem api?1
510. Accelerometer sensor1
511. Information about window.location.ancestorOrigins1
512. [CSS Level 4 pseudo-class] :user-error1
513. window.location.replace1
514. Support of sms: and mms: in mobile browsers is not clear1
515. add support for Array.prototype.find.1
516. CSS tag {content: url()}1
517. Add hreflang attribute usage support for link element1
518. Add 'animated GIF as favicon'?1
519. apple-touch-icon1
520. Add css pseudo-classes :read-only and :read-write browsers support1
521. Cannot see |ImageCapture| entry in the web interface.1
522. window.addListener()1
523. wakeLock1
524. KeyboardEvent.isComposing1
525. Add HTMLInputElement.select()1
526. html5 image attribute usemap1
527. SVG 1.21
528. CSS Inline Layout1
529. filename*=UTF-8''...1
530. Add `onunload` event1
531. support for "offsetParent"?1
532. What is the support on clear: both?1
533. Missing a check for msConvertURL() on DragEvent1
534. Add support information for the translate attribute1
535. Add CSS viewport-percentage length units 'vi' and 'vb'1
536. embed tag 1
537. Request: nav-up, nav-down, nav-left, nav-right css3 properties1
538. Split background-size from CSS3 Background-image options1
539. Add "Named function expressions"1
540. Please add String.prototype.normalize()1
541. Add ECC certificates1
542. event.path1
543. Support for window.innerHeight, window.innerWidth, window.outerHeight, window.outerWidth1
544. getClientRects1
545. Indicate which browsers use the HTML5 Parsing algorithm.1
546. Geometry Interfaces Module Level 11
547. Encoding API compatibility table1
548. Please track the various HTTP Set-Cookie options supported by browsers1
549. What about Standby API?1
550. Please add XMLHttpRequest.responseURL1
551. Cache-Control 1
552. window.localMediaStream is not listed1
553. Add window.frameElement to CanIUse1
554. support for Performance-Timeline & High-Resolution-Time1
555. <video> `playsinline` attribute1
556. SVG viewport-fill property support1
557. allowtransparency1
558. IETF RFCs1
559. Add support stats for String.prototype.repeat()1
560. ie behavior1
561. Function.length / Function.prototype.length1
562. The xml:space attribute1
563. show support for namespacing; for example <svg: namespace 1
564. Add compositionstart/end/update event1
565. RFC7692 Compression Extensions for WebSocket1
566. column combination1
567. Support setCapture and releaseCapture for mouse1
568. document.importNode1
569. Javascript Built-In MAP1
570. Add data for link rel="alternate"1
571. background-composite1
572. Add: window.locationbar window.menubar window.personalbar window.statusbar window.toolbar1
573. Add windows-theme media query selector1
574. Add data for imageSmoothingEnabled Property (Canvas-related)1
575. Please add iFrame element contentWindow property1
576. add onstorage1
577. HTMLImageElement.complete1
578. Cookies: max-age1
579. Add web assembly/wasm1
580. Can I use selectedOptions ?1
581. Add WebKit Tap Highlight Color (-webkit-tap-highlight-color)?1
582. x-webkit-speech1
583. Add -webkit-touch-callout?1
584. Add CSS text-combine-upright property 1
585. Range.surroundContents()1
586. Screen.availLeft1
587. CSS pitch and speech-rate0
588. HTML5 constraint validation API - setCustomValidity0
589. HTML DOM selectedIndex attribute (drop-down list)0
590. Add Object.getNotifier(obj)0
591. Add Background Sync0
592. window.frames list0
593. documentMode0
594. window.screen0
595. Add Object.prototype.watch method0
596. marquee0
597. input type password not included-2