More revealed of IE 10 in Windows 8 Consumer Preview

As you know by now, the release of the Windows 8 Consumer Preview build earlier this week also included a new version of Internet Explorer 10. We've put the web browser through some benchmarks of our own and compared the results to other rival browsers. Now Microsoft has offered up even more information about IE 10 and its new features in the latest Windows 8 version.

In a new entry on the IE developer blog site, Microsoft's Ted Johnson offers up a highly technical post about the new or updated Web platform features in IE 10, in comparison to the earlier version included in the Windows 8 Developer Preview. Some of the new features in the Consumer Preview version of IE 10 include Cross-Origin Resource Sharing (CORS) for XMLHttpRequest, Interoperable HTML5 Quirks mode and a Meta tag that alerts the web browser user that a web site requires ActiveX add-ons. As we have reported before, web add-ons will only be supported in the classic desktop version of IE 10. The Metro version has no such add-on support.

There are also a number of new features in IE 10 that appeared in the Developer Preview version but have since been improved for the Consumer Preview release. These include HTML5 drag and drop APIs, XMLHttpRequest enhancements and SVG filter effects. More information about these changes and improvements can be checked out in the Internet Explorer 10 Consumer Preview Guide for Developers.

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Why would there being multiple versions effect anything unless it was a different engine in each? All display pages the same. When I test sites, I run them through 3x 32bit browsers and 1x 64bit. Should also mention 1 of the 32 bit ones, is also the 64 bit ones brother. No differences at all, except in load time on my system.

link8506 said,
Although not directly related to webplatform features, IE10 contains a more important feature for end users : a new sandbox much more secure than the one that ships in IE9 and chrome. However it is not enabled by default on IE/desktop because flash player is not yet compatible.

You say flash is not compatible 'yet', I'm confused whether this new sandbox is something that's versatile enough to allow something like flash or is it like the desktop version of metro IE where plug-ins are just plain banned?

J_R_G said,

You say flash is not compatible 'yet', I'm confused whether this new sandbox is something that's versatile enough to allow something like flash or is it like the desktop version of metro IE where plug-ins are just plain banned?

Currently, there is no documentation on MSDN talking about Enhanced Protected Mode, but the appcontainer sandbox is flexible enough to allow selective ways to communicate with an unsandboxed process (after all, the iexplore.exe sanboxed renderer DOES communicate with the parent IE frame process). So I guess MS is gonna permit process brokers to be created to allow activeX controls to access the resources they need.

Furthermore, in gpedit.msc, there is a policy that states the following:

"When a user has an ActiveX control installed that is not compatible with Enhanced Protected Mode and a website attempts to load the control, Internet Explorer notifies the user and gives the option to run the website in regular Protected Mode."

Since they say explicitely "WHEN a user has an ActiveX control installed THAT IS NOT compatible", they talk about Activex controls installed that do not expose a version compatible with the new sandbox, which means ActiveX controls that are compatible with enhanced protected mode could exist.

Otherwise they would just have said "When the page needs an activeX control[...]" (to mean that every activeX controls are incompatible)

BumbleBritches57 said,
^From x64 Windows 8 ofc
And what would happen with other plugins that don't have a 64-bit version? Silly comment, really, Flash isn't the only plugin in the world, obv.

BumbleBritches57 said,
With x64 Flash, Microsoft should completely drop x86 IE...
That'd be a problem with x86 Windows, obv.

I didn't think much about the add-ons initially but then I tried to play a Facebook game, and it didn't work in the Metro IE10. It tells you to use the desktop IE, but then doesn't open that page in that version of IE. I know that will be a big turnoff for many to using IE10 in the Metro interface.