Web Application Security

This IE10 Platform Preview now supports HTML5 Sandbox and iframe isolation, an important component to Web application security:

Web Application Security

We have communicated specific privacy concerns (link) about the design of one aspect of Web Workers (link) to the W3C working group, along with a proposal for how to resolve the issue.
Looking Forward

Developers will be able to build even more amazing sites and applications (beyond these, or these) with IE10’s improved HTML5 support. As different browsers support developers using the same markup to achieve the same results with great performance, we can all realize the promise of HTML5 applications. To this end, we have posted over 270 new tests to the IE Test Center and submitted them to the standards bodies.

With Platform Previews, developers and technology enthusiasts can try out new technologies and provide feedback without any confusion about which technologies are site-ready and which are experimental. This approach enables the technical community to work through safety issues (for example, the privacy one above, or this one) before putting any consumers at risk, and minimizes wasted effort re-writing consumer-facing sites. This post HTML5, Site-Ready and Experimental offers more detail on this topic. For example, initial support for the FileAPI started with HTML5 Labs; based on feedback there, we have added it to the IE Platform Preview.

Because of this approach to productizing Web technologies, Microsoft will support IE10 for 10 years after its release, honoring the same product lifecycle commitments as Windows itself. This blog post (link) describes some of the scenarios and customers for which this is important.

We continue to recommend that developers use feature detection to accommodate the many, many browsers (for example on mobile devices) that do not support particular features:

// check if this browser supports channel messaging

if (window.MessageChannel) {

/* Use channel messaging in this browser */

}

You can find a full list of new functionality available to developers in the IE10 developer guide here. We look forward to continuing to engage the community and listening to your feedback.

Dean Hachamovitch

P.S. We encourage developers to try out the improved innerHTML support in this second Platform Preview of IE10.

Posted in: Microsoft Windows,professional tools,Web Applications,Win 7,Windows,Windows 7,Wizard