Ie9 User-Agent

From: http://news.mydrivers.com/1/159/159621.htm

The development team of Microsoft IE browser introduced the new ie9 style through the official blog todayUser-Agent string (user agent string), Website developers and designers should pay attention to it.

The first published version of ie9 is sent with the IE8 UA string, but the new ie9 UA string will be used after the next upgrade.

Ie9 default UA string four major changes:

1. the program name and version are upgraded from "Mozilla/4.0" to"Mozilla/5.0.Matching with other browsers proves the good interoperability of IE.

2. Upgrade the version ID from "MSIE 8.0" to"Msi 9.0".

3. Upgrade the Trident rendering engine version logo from "Trident/4.0" to"Trident/5.0".

4,By default, the short format UA string is sent. No additional content is added to the UA string by using. net installed on the local machine or other programs.This will help improve the overall network performance and compatibility of IE and the interoperability with other browsers.

However, the application and platform can continue to add more content before and after the platform register the key value of ie9 UA. The website can also continue to obtain the content through the navigator. useragent attribute. Ie9 does not change the existing registration key value.

For example, the IE 9 browser on Windows 7 will send the following UA string:

Similar to IE8,The compatible view of ie9 will also use IE7 standard mode for rendering. At this time, the UA string is:

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/5.0)

In the Compatibility View, ie9 reports itself as IE7 through the program version (Mozilla/4.0) and version ID (MSIE 7.0) to ensure compatibility,A new rendering engine version identifier (Trident/5.0) is used to distinguish ie9 Compatibility View From IE8 Compatibility View.

Ie9 UA string registry file: