The Microsoft Internet Explorer (IE) 9 Platform Preview is an early look at how HTML5, , and a new JavaScript engine, codenamed , will affect how we build websites in the near future. The Platform Preview is not a full web browser and is intended for developers to test and debug their work within this new technology. It does not include an address bar, a back button, anti-phishing or malware protection, but has the ability to render HTML5, CSS3, and run the Chakra JavaScript engine. The IE9 Platform Preview can be downloaded at Microsoft intends to release a new version of Internet Explorer Platform Preview approximately every 8 weeks.

It is important to note that when IE9 comes out in the not so distance future that Microsoft will likely have to issue a service pack for SharePoint 2010. Although HTML5 is said to be defined in a way that it is backwards compatible with the way user agents handle deployed content, I noticed through my limited testing that some SharePoint 2010 features did not always render correctly.

For more information about the Microsoft Internet Explorer (IE) 9 Platform Preview visit Internet Explorer 9: Platform Demos, IE Blog, Windows Internet Explorer Testing Center, IE9 Platform Preview FAQ, Internet Explorer 9 Platform Preview User Guide, Release Notes, and Internet Explorer Platform Preview Guide for Developers. For information about visit my post at


About Author

Christine Weaver has been the technical lead on projects designing, developing, deploying, supporting, and delivering solutions for SharePoint since 2003. Christine’s knowledge and experience leans heavily on her 10+ years as a software consultant and from being a Microsoft certified professional. Christine has been a regular presenter at TechDays Canada and runs the Halifax SharePoint User Group.

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