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

This is what helped me:

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and find & replace the regex in ckeditor JS codes:

replace /MSIE (\d+)/ with /MSIE ([\d.]+)/

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Most importantly, dont forget to Close the browser/tab and open the site again. Otherwise this meta tag wont work !