Chromium Blog
News and developments from the open source browser project
A web developer’s guide to the latest Chrome Beta
giovedì 8 novembre 2012
Today’s Chrome
Beta channel release
includes a slew of awesome new developer features.
Datalist support in date and time
datalist
allows you to specify a list of suggested dates and times for input elements. Of course, users still have the freedom to enter arbitrary dates and times. One use case is helping users choose when their food should be ready for pickup:
MathML
Now you can write mathematical content in
MathML
and expect it to be consistently beautiful across the web. Special kudos to
WebKit
volunteer
Dave Barton
for implementing this on his own accord.
Other new features in this release
CSS custom filters
have landed behind a
flag
. They enable sweet cinematic effects like page flipping with just CSS and HTML. You can turn them on with
chrome://flags
.
Chromium now parses the
autocomplete
attribute
according to spec
. Use it to specify which type of saved user data the browser should use to prefill input elements. Examples are
name
and
street-address
.
A few brand new features landed with a prefix:
-webkit-hyphens
gives you more control over hyphenation at line breaks, and
-webkit-clip-path
enables you to
clip DOM content
to an SVG shape.
Un-prefixed APIs
APIs un-prefixed in today’s Beta release include:
IndexedDB
, a client-side storage API offering fast access to large amounts of structured data
Intl
, which adds support for JavaScript internationalization of date format, number format, collation and non-standard segmentation, and more time zones
postMessage
, a feature enabling cross-origin communication (including
support for fast transferable objects
)
requestAnimationFrame
for silky smooth JavaScript animations
performance.now()
for reliable, high-resolution timing
Today’s Beta release supports these APIs in both their prefixed and un-prefixed forms. If you’re currently using the prefixed versions, you should switch to the un-prefixed versions after today’s Beta release reaches the Stable channel. At that point the prefixed versions will be deprecated, and future releases may not support them.
Experiments removed in this release
As the web platform evolves, support for some experiments has been removed. The
Blob
constructor
should now be used instead of the
WebKitBlobBuilder A
PI, and the
Blob.webkitSlice()
method is deprecated in favor of
Blob.slice()
.
We also gathered a lot of valuable data and feedback from our experimental support for
Web Intents
and
decided to disable
the feature in today's Beta release.
Stay in the loop
Visit
chromestatus.com
for a complete overview of Chrome’s developer features, and circle
+Google Chrome Developers
for more frequent updates.
We hope you enjoy this Beta release as much as we’ve enjoyed working on it!
Posted by Peter Beverloo, Software Engineer and Web Platform Enthusiast
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