FCKEditor doesn't work in IE10

Question

FCKEditor doesn\'t appear in IE10. When I go to IE development tools and switch browser mode to IE9, FCKEditor works all right. But when I put meta tag for emulate IE9:

Answer 1

IE10 is not working well with it's new quirks mode.

You can switch to the older, basic quirks mode they develop and your problem will be solved. Add the following meta tag:

Also make sure you detect the browser and and it's version as IE10 and then apply this meta tag.