Microsoft's IE team discussed about how the internet will be transitioning to a plugin-free web, where websites will "no longer" require plugins to understand what their customers experience when browsing plug-in free.
In a January 31 blog post, John Hrvatin, notes "lots of Web browsing today happens on devices that simply don't support plug-ins. Even browsers that do support plug-ins offer many ways to run plug-in free. A new feature in IE10 will allow developers to warn its users that the website they're visiting requires a plugin. Microsoft state that "IE10 doesn't use plugins to save battery life, as well as security, reliability and privacy", but will ask if you want to switch between desktop and metro mode when plugins are needed.
"Developers with sites that need plug-ins can use an HTTP header or meta tag to signal Metro style IE to prompt the user that the website they're visitng requires plugins, and will offer to switch to desktop mode IE10, which does support plugins," explains Hrvatin.
In addition to respecting these X-UA-Compatible flags specified by the developer, the Compatibility View List can also specify a site that needs to run in the desktop.
This mechanism provides a short-term mitigation "one-touch" way to use your plugins. The desktop browsing experience and most plug-ins weren't designed for smaller screens, battery constraints, and no mouse. Providing an easy way to the Windows desktop is the last resort when no comparable plug-in free fallback content exists.