WebKit features not supported in AIR
AIR does not support the following features available in WebKit or Safari 4:
Cross-domain messaging via window.postMessage (AIR provides its own cross-domain communication APIs)
CSS variables
Web Open Font Format (WOFF) and SVG fonts.
HTML video and audio tags
Media device queries
Offline application cache
Printing (AIR provides its own PrintJob API)
Spelling and grammar checkers
SVG
WAI-ARIA
WebSockets (AIR provides its own socket APIs)
Web workers
WebKit SQL API (AIR provides its own API)
WebKit geolocation API (AIR provides its own geolocation API on supported devices)
WebKit multi-file upload API
WebKit touch events (AIR provides its own touch events)
Wireless Markup Language (WML)
The following lists contain specific JavaScript APIs, HTML elements, and CSS properties and values that AIR does not support:
Unsupported JavaScript Window object members:
applicationCache()
console
openDatabase()
postMessage()
document.print()
Unsupported HTML tags:
audio
video
Unsupported HTML attributes:
aria-*
draggable
formnovalidate
list
novalidate
onbeforeload
onhashchange
onorientationchange
onpagehide
onpageshow
onpopstate
ontouchstart
ontouchmove
ontouchend
ontouchcancel
onwebkitbeginfullscreen
onwebkitendfullscreen
pattern
required
sandbox
Unsupported JavaScript events:
beforeload
hashchange
orientationchange
pagehide
pageshow
popstate
touchstart
touchmove
touchend
touchcancel
webkitbeginfullscreen
webkitendfullscreen
Unsupported CSS properties:
background-clip
background-origin (use -webkit-background-origin)
background-repeat-x
background-repeat-y
background-size (use -webkit-background-size)
border-bottom-left-radius
border-bottom-right-radius
border-radius
border-top-left-radius
border-top-right-radius
text-rendering
-webkit-animation-play-state
-webkit-background-clip
-webkit-color-correction
-webkit-font-smoothing
Unsupported CSS values:
appearance property values:
media-volume-slider-container
media-volume-slider
media-volume-sliderthumb
outer-spin-button
border-box (background-clip and background-origin)
contain (background-size)
content-box (background-clip and background-origin)
cover (background-size)
list property values:
afar
amharic
amharic-abegede
cjk-earthly-branch
cjk-heavenly-stem
ethiopic
ethiopic-abegede
ethiopic-abegede-am-et
ethiopic-abegede-gez
ethiopic-abegede-ti-er
ethiopic-abegede-ti-et
ethiopic-halehame-aa-er
ethiopic-halehame-aa-et
ethiopic-halehame-am-et
ethiopic-halehame-gez
ethiopic-halehame-om-et
ethiopic-halehame-sid-et
ethiopic-halehame-so-et
ethiopic-halehame-ti-er
ethiopic-halehame-ti-et
ethiopic-halehame-tig
hangul
hangul-consonant
lower-norwegian
oromo
sidama
somali
tigre
tigrinya-er
tigrinya-er-abegede
tigrinya-et
tigrinya-et-abegede
upper-greek
upper-norwegian
-wap-marquee (display property)