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W3C to meet with developers on HTML 5


By Alex Handy
November 3, 2009 — 
The W3C has a lot on its plate. The standards body that governs the development of CSS and HTML will meet Thursday with developers in Silicon Valley to discuss the future of the Web. Among the topics of discussion will be the HTML 5 specification, a future bereft of unused IPv4 addresses, and mobile widget application development.

Chief among the W3C's duties is its work on HTML 5. Philippe Le Hégaret, a member of multiple standards groups at the W3C, including the group working on HTML 5, said that markup language-cum-programming language should be ready by the end of 2010. By that time, he said he expects the major browsers to accommodate the specification.

There are still questions about Microsoft's Internet Explorer, however. Le Hégaret said that all the major browsers are on board with the HTML 5 process, and that Microsoft was registered to send five developers to this week's meetings. But at the same time, the Internet Explorer team has been slow to announce its intentions around some of the HTML 5 changes.

Specifically, Microsoft has not yet chosen a codec for use with the new video handling capabilities in HTML 5. The company has also dragged its feet in implementing the new scalable vector graphics capabilities introduced in HTML 5.

Complicating matters is the lack of cohesion on video codecs among the other browser makers, said Le Hégaret. “One of the goals of HTML 5 is to make sure all the browsers implement it correctly. Another big problem we are facing is with the HTML video element: Which video format should we use? Safari supports MPEG4; Mozilla is pushing for OGG Theora. Microsoft declared they will support the HTML 5 video element, but I dont think they support it yet.

"So far, we haven't been able to provide one video format everyone can agree on. I can design a page that works in both Safari and Firefox, but I would have to provide two video files: one OGG, one MPEG."

Tim Berners-Lee, inventor of the World Wide Web, is also attending the developer meetings on Thursday, where he will partake in the discussions around the future of the Web.

He said that HTML 5 implements many features that have been on his wish list for the Web for quite some time, specifically SVG support and the ability to parse text into dynamic columns that move around to accommodate the user's browser window.

“It's been said today that, yes, this is a markup language for a Web page. But it's a computing platform, too. The really big shift happening here is the shift to being a client-side computing platform,” said Berners-Lee of HTML 5.

He added that a great deal of work is still left to be done around the validation and security of using Web applications that pull information from multiple locations, and that the W3C team is working to ensure such streams can be verified to be secure.

Dwindling space
Also on the schedule for discussion at the W3C's developer meeting this week is the quickly dwindling supply of the world's IPv4 addresses. While this is primarily a networking and IT issue, Leslie Daigle, chief Internet technology officer for the non-profit Internet Society, said that world is expected to run out of IPv4 addresses between 2011 and 2013. She also said that IPv6 is ready for the switch, but that many networks, service providers and content providers are not.

The biggest concern for application developers, said Daigle, will be the proliferation of network address translation (NAT). Worldwide NAT usage increasing, said Daigle, has implications for applications that rely on IP addresses to resolve “geolocation and geoproximity. You can discuss whether or not IP addresses are a good way to tell where people are, but the reality is there are a number of existing services and solutions that rely on this, and they're about to get a big surprise."

Another issue comes from the fact that using NAT diminishes the number of ports available on individual machines. “The more one particular IP address is being shared among many [machines], the fewer ports there are, and really practical things like Google Maps stop looking like a map and start looking like a jigsaw puzzle because the underlying AJAX can't open as many ports as it wants," said Daigle.

"But people aren't going to say, 'My network is awful.' They're going to say, 'Google Maps is broken.' ”


Related Search Term(s): HTML, W3C


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