id summary reporter owner description type status priority milestone component version resolution keywords cc 6230 JS error in IE9 Wiktor Walc Wiktor Walc "When loading CKEditor in IE9, a JavaScript error is shown: {{{ SCRIPT65535: Invalid parameter count for function call }}} Looks like a simple issue - the second argument (delay) in setTimeout is missing. I haven't checked older versions, but the bug is present at least in 3.4. Targeting to the next release as it is a really simple bug and people might start checking CKEditor in IE9 much more often soon." Bug closed Normal CKEditor 3.4.1 General 3.4 fixed