Microsoft says that IE9 is "the fastest browser in the world." Mozilla credits IE9 does not qualify as modern.
Like Mozilla Firefox 4 and Internet Explorer 9 to get closer to release, browser manufacturers are sparring of HTML5 features, lobbing insults and conflicting test results.
After Microsoft said that IE9 reaches 99% compliance with HTML5, compared to 50% of Firefox, Mozilla Corp technology evangelist Paul Rouget fired back with a blog post entitled "is a modern browser, IE9? NO. "
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The HTML5 standard will not be finished until 2014, so at this point the posture is mainly for public relations. The World Wide Web Consortium has said it is too early to draw general conclusions from tests of HTML5, but this is exactly what they're doing browser manufacturers.
Microsoft said it has submitted nearly 4,000 tests for HTML5 standards bodies, and that users can try the tests themselves-but only on an official Microsoft website.
Microsoft, which is also fighting a battle with Google standards for the codec to be used in HTML5 video, said this month that "fastest browser in the world." But Rouget begs to differ, saying that no wonder Microsoft's IE9 knock HTML5 tests show out of the Park.
"IE9 supports 99% of the HTML5 specification as suggested by Microsoft? No, I'm actually pretty far from it, "Rouget writes. "Microsoft reference tests are those that have created during the development of IE9. It's not that surprising that pass the tests much they used to design and develop the browser-we score pretty well against our unit-test as well. The primary use case for these tests, however, is to spot regressions and validate code changes. In other words: the tests to ensure that future changes don't break things just built. They actually test all of the elements of a specific standard. "
Rouget pointed to a "real-world test" on the site Caniuse.com, that shows Firefox 4 said achieving 84% compatibility with all Web standards, compared to 61% for IE9. He mentioned also HTML5test .com, which has 4 Firefox achieve a score of 255 130, IE9.
These scores are based on the development and beta versions. For stable versions of browsers (IE8 and Firefox 3.6.8), Microsoft scores just 32 and Firefox only 156.
Google Chrome, meanwhile, receives a score of HTML5 to 283 for its stable version and 293 for the beta, besting all browsers for desktops and laptops.
But yet another test puts IE9 in head. Former Linden Lab CTO Cory Ondrejka, now at Facebook, tested as HTML5 could apply to Web-based games and recorded results showing across the IE9 chrome, Firefox, Opera and Apple Safari well behind.
Rouget of Mozilla does not mention HTML5 results Chrome, but provide a list of 17 features, he says, are not supported by IE9, including HTML5 JavaScript forms, strict mode, the application cache and drag and drop from the desktop.
Rouget "the reality is that IE9 is two years late," he writes. "Microsoft is pleased to come out with the VIDEO tag, the tag (CANVAS), SVG, and some CSS3. As other vendors did years ago. Firefox 3.5 had the tag (VIDEO), tag (CANVAS), Geolocation, SVG in 2009. Canvas and SVG existed five years ago. "
Rouget identifies only two IE9 features not supported in browser rivals-text-overflow and Calc. "That's why I do not think a modern browser, IE9" concludes.
In response to the blog of Rouget, Microsoft has released a statement saying:
"We spent a lot of time looking and seeing what developers are building today and what they want to build tomorrow to define what we built in Internet Explorer 9 today. We used that research to inform our vision of HTML5 and the parts that matter most for designers and developers in creating these next set of experiences on the Web. Defined In terms of HTML5, remains a combination of what you want to make developers and definitions set by the W3C as the Supreme authority in defining standards for the Web ".
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