Fix issue with browser definition files

There is a bug in the browser definition files that shipped with .NET 2.0 and .NET 4, namely that they contain definitions for a certain range of browser versions. But the versions for some browsers (like IE 10) aren’t within those ranges any more. Therefore, ASP.NET sees them as unknown browsers and defaults to a down-level definition, which has certain inconveniences, like that it does not support features like JavaScript. Read more @

http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosition.aspx

Quirksmode – Useful to check browser compatibility for CSS and Javascript

Site by Peter-Paul Koch – A prime source to check browser compatibility information. We will find here the free assessments of the major browsers’ CSS and JavaScript capabilities, as well as their adherence to the W3C standards

http://www.quirksmode.org/