IE10 Windows 8 and Windows Phone 8 differences detailed

As we have mentioned already today, Friday is turning out to be a big day for Microsoft and Windows Phone 8 as the first devices running the mobile OS go on sale to the public in the US. The people who are first to get the Nokia and HTC smartphones will also be among the first to check out the new Internet Explorer 10 web browser built into Windows Phone 8.

The official Windows Phone developer blog goes in deep today with a list of all the new features put into IE10 for Windows Phone 8. Visually, the browser handles effects such as 3D transforms, shadows for both text and boxes in websites and support for more fonts, including TypeKit from Adobe. In terms of web page layouts, IE10 for Windows Phone 8 supports features like multiple columns, positioned floats and more.

However, the IE10 browser on Windows Phone 8 does not support everything that IE10 does on the PC-based Windows 8 OS. Microsoft says that IE10 for its mobile OS won't have support for inline video, multi-track HTML5 audio and Drag-and-drop APIs, among other things. The mobile version also doesn't support a number of Windows 8-specific IE10 features such as pinned site icons, linked previews and a way to connect websites to apps.

Source: Windows Phone developer blog | Image via Microsoft

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9 Comments

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I find it curious that the images they posted of WP8 devices have the IETestDrive graphical HTML5 tests running on the screens. I wonder if this is a subtle a 'challenge' for other smartphones.

These are some of the tests that Chrome on an Intel i7 desktop can't run well or even always beat a WP7 device. They hit hard in the graphical rendering aspects of HTML5/CSS3 standards that Chrome/Safari/Mozilla still have problems with.

I need to have my team pull numbers for these tests for the IE10 on WP8 to see how much faster these test have gotten on WP8 over WP7.

sviola said,
What about flash support? Will the phone browser have it?

I'm ruling out the possibility. 100% confirmed that WP8 will not support Flash. How? Adobe stopped developing Flash for mobile devices.

Actually, no. We tested a Lumia 920 IE and a Windows 8 IE and they scored the exact same on our HTML 5 tests.

MS already have the IE code running on ARM (Windows RT) so having the WP8 browser use the same build is not a very difficult task.

Princess Chica Ami said,
Yawn. Like IE 9 on mobile compare to desktop, they are miles apart.

Huh? Essentially 8 things the mobile one doesn't support, some of which make no sense for the phone to support anyways, and they are miles apart?

Would you like the phone support ActiveX? It's on the list.

lini said,
Actually, no. We tested a Lumia 920 IE and a Windows 8 IE and they scored the exact same on our HTML 5 tests.

MS already have the IE code running on ARM (Windows RT) so having the WP8 browser use the same build is not a very difficult task.

Actually, this is not different.

IE9 doesn't have a few of the actual HTML5 features that are noted as different, even if you can call them true HTML5 differences. So IE9 and WP7 IE9 would score the same.

With the exception of Drag and Drop, I don't see how IE10 would score differently than WP8 IE10.

What HTML5 test do you see that would be an actual difference between the two?

Just to note, they both use the same common code base, just as IE9. And to be clear, they are even more identical than IE9 was, as there was no need for additional machine code porting as this was already done by the Windows 8 team for RT.

They ripped out features that don't work well on mobile, like ActiveX, inline Video features that are worthless, and the confusion of the drag and drop features that fail with touch UIs, etc.