Here is what happened with ckeditor.js on quickdiff.com :
Code:
75 - }});n.ui.addButton('PasteFromWord',{label:n.lang.pastefromword.toolbar,command:'pastefromword'});n.on('pasteState',function(q){n.getCommand('pastefromword').setState(q.data);});n.on('paste',function(q){var r=q.data,s;if((s=r.html)&&(o||/(class=\"?Mso|style=\"[^\"]*\bmso\-|w:WordDocument)/.test(s))){var t=this.loadFilterRules(function(){if(t)n.fire('paste',r);else if(!n.config.pasteFromWordPromptCleanup||o||confirm(n.lang.pastefromword.confirmCleanup))r.html=a.cleanWord(s,n);});t&&q.cancel();}},this);},loadFilterRules:function(n){var o=a.cleanWord;if(o)n();else{var p=a.getUrl(i.pasteFromWordCleanupFile||this.path+'filter/default.js');a.scriptLoader.load(p,n,null,true);}return!o;},requires:['clipboard']});})();(function(){var m={exec:function(n){var o=e.tryThese(function(){var p=window.clipboardData.getData('Text');if(!p)throw 0;return p;});if(!o){n.openDialog('pastetext');return false;}else n.fire('paste',{text:o});return true;}};j.add('pastetext',{init:function(n){var o='pastetext',p=n.addCommand(o,m);n.ui.addButton('PasteText',{label:n.lang.pasteText.button,command:o});a.dialog.add(o,a.getUrl(this.path+'dialogs/pastetext.js'));if(n.config.forcePasteAsPlainText){n.on('beforeCommandExec',function(q){var r=q.data.commandData;if(q.data.name=='paste'&&r!='html'){n.execCommand('pastetext');q.cancel();}},null,null,0);n.on('beforePaste',function(q){q.data.mode='text';});}n.on('pasteState',function(q){n.getCommand('pastetext').setState(q.data);});},requires:['clipboard']});})();j.add('popup');e.extend(a.editor.prototype,{popup:function(m,n,o,p){n=n||'80%';o=o||'70%';if(typeof n=='string'&&n.length>1&&n.substr(n.length-1,1)=='%')n=parseInt(window.screen.width*parseInt(n,10)/100,10);if(typeof o=='string'&&o.length>1&&o.substr(o.length-1,1)=='%')o=parseInt(window.screen.height*parseInt(o,10)/100,10);if(n<640)n=640;if(o<420)o=420;var q=parseInt((window.screen.height-o)/2,10),r=parseInt((window.screen.width-n)/2,10);p=(p||'location=no,menubar=no,toolbar=no,dependent=yes,minimizable=no,modal=yes,alwaysRaised=yes,resizable=yes,scrollbars=yes')+',width='+n+',height='+o+',top='+q+',left='+r;var s=<!--ow.open('',null,p,tru-->if(!s)return false;try{s.moveTo(r,q);s.resizeTo(n,o);s.focus();s.location.href=m;}catch(t){s=<!--ow.open(m,null,p,tru-->}return true;}});(function(){var m={modes:{wysiwyg:1,source:1},canUndo:false,readOnly:1,exec:function(o){var p,q=o.config,r=q.baseHref?'<base href="'+q.baseHref+'"/>':'',s=b.isCustomDomain();if(q.fullPage)p=o.getData().replace(/<head>/,'$&'+r).replace(/[^>]*(?=<\/title>)/,'$& — '+o.lang.preview);
76 - else{var t='<body ',u=o.document&&o.document.getBody();if(u){if(u.getAttribute('id'))t+='id="'+u.getAttribute('id')+'" ';if(u.getAttribute('class'))t+='class="'+u.getAttribute('class')+'" ';}t+='>';p=o.config.docType+'<html dir="'+o.config.contentsLangDirection+'">'+'<head>'+r+'<title>'+o.lang.preview+'</title>'+e.buildStyleHtml(o.config.contentsCss)+'</head>'+t+o.getData()+'</body></html>';}var v=640,w=420,x=80;try{var y=window.screen;v=Math.round(y.width*0.8);w=Math.round(y.height*0.7);x=Math.round(y.width*0.1);}catch(C){}var z='';if(s){window._cke_htmlToLoad=p;z='javascript:void( (function(){document.open();document.domain="'+document.domain+'";'+'document.write( window.opener._cke_htmlToLoad );'+'document.close();'+'window.opener._cke_htmlToLoad = null;'+'})() )';}var A=<!--ow.open(z,null,'toolbar=yes,location=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width='+v+',height='+w+',left='+-->if(!s){var B=A.document;B.open();B.write(p);B.close();b.webkit&&setTimeout(function(){B.body.innerHTML+='';},0);}}},n='preview';j.add(n,{init:function(o){o.addCommand(n,m);o.ui.addButton('Preview',{label:o.lang.preview,command:n});}});})();j.add('print',{init:function(m){var n='print',o=m.addCommand(n,j.print);m.ui.addButton('Print',{label:m.lang.print,command:n});}});j.print={exec:function(m){if(b.opera)return;else if(b.gecko)m.window.$.print();else m.document.$.execCommand('Print');},canUndo:false,readOnly:1,modes:{wysiwyg:!b.opera}};j.add('removeformat',{requires:['selection'],init:function(m){m.addCommand('removeFormat',j.removeformat.commands.removeformat);m.ui.addButton('RemoveFormat',{label:m.lang.removeFormat,command:'removeFormat'});m._.removeFormat={filters:[]};}});j.removeformat={commands:{removeformat:{exec:function(m){var n=m._.removeFormatRegex||(m._.removeFormatRegex=new RegExp('^(?:'+m.config.removeFormatTags.replace(/,/g,'|')+')$','i')),o=m._.removeAttributes||(m._.removeAttributes=m.config.removeFormatAttributes.split(',')),p=j.removeformat.filter,q=m.getSelection().getRanges(1),r=q.createIterator(),s;while(s=r.getNextRange()){if(!s.collapsed)s.enlarge(1);var t=s.createBookmark(),u=t.startNode,v=t.endNode,w,x=function(z){var A=new d.elementPath(z),B=A.elements;for(var C=1,D;D=B[C];C++){if(D.equals(A.block)||D.equals(A.blockLimit))break;if(n.test(D.getName())&&p(m,D))z.breakParent(D);}};x(u);if(v){x(v);w=u.getNextSourceNode(true,1);while(w){if(w.equals(v))break;var y=w.getNextSourceNode(false,1);if(!(w.getName()=='img'&&w.data('cke-realelement'))&&p(m,w))if(n.test(w.getName()))w.remove(1);
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75 + }});n.ui.addButton('PasteFromWord',{label:n.lang.pastefromword.toolbar,command:'pastefromword'});n.on('pasteState',function(q){n.getCommand('pastefromword').setState(q.data);});n.on('paste',function(q){var r=q.data,s;if((s=r.html)&&(o||/(class=\"?Mso|style=\"[^\"]*\bmso\-|w:WordDocument)/.test(s))){var t=this.loadFilterRules(function(){if(t)n.fire('paste',r);else if(!n.config.pasteFromWordPromptCleanup||o||confirm(n.lang.pastefromword.confirmCleanup))r.html=a.cleanWord(s,n);});t&&q.cancel();}},this);},loadFilterRules:function(n){var o=a.cleanWord;if(o)n();else{var p=a.getUrl(i.pasteFromWordCleanupFile||this.path+'filter/default.js');a.scriptLoader.load(p,n,null,true);}return!o;},requires:['clipboard']});})();(function(){var m={exec:function(n){var o=e.tryThese(function(){var p=window.clipboardData.getData('Text');if(!p)throw 0;return p;});if(!o){n.openDialog('pastetext');return false;}else n.fire('paste',{text:o});return true;}};j.add('pastetext',{init:function(n){var o='pastetext',p=n.addCommand(o,m);n.ui.addButton('PasteText',{label:n.lang.pasteText.button,command:o});a.dialog.add(o,a.getUrl(this.path+'dialogs/pastetext.js'));if(n.config.forcePasteAsPlainText){n.on('beforeCommandExec',function(q){var r=q.data.commandData;if(q.data.name=='paste'&&r!='html'){n.execCommand('pastetext');q.cancel();}},null,null,0);n.on('beforePaste',function(q){q.data.mode='text';});}n.on('pasteState',function(q){n.getCommand('pastetext').setState(q.data);});},requires:['clipboard']});})();j.add('popup');e.extend(a.editor.prototype,{popup:function(m,n,o,p){n=n||'80%';o=o||'70%';if(typeof n=='string'&&n.length>1&&n.substr(n.length-1,1)=='%')n=parseInt(window.screen.width*parseInt(n,10)/100,10);if(typeof o=='string'&&o.length>1&&o.substr(o.length-1,1)=='%')o=parseInt(window.screen.height*parseInt(o,10)/100,10);if(n<640)n=640;if(o<420)o=420;var q=parseInt((window.screen.height-o)/2,10),r=parseInt((window.screen.width-n)/2,10);p=(p||'location=no,menubar=no,toolbar=no,dependent=yes,minimizable=no,modal=yes,alwaysRaised=yes,resizable=yes,scrollbars=yes')+',width='+n+',height='+o+',top='+q+',left='+r;var s=<!--ow.open('',null,p,tru-->if(!s)return false;try{s.moveTo(r,q);s.resizeTo(n,o);s.focus();s.location.href=m;}catch(t){s=<!--ow.open(m,null,p,tru-->}return true;}});(function(){var m={modes:{wysiwyg:1,source:1},canUndo:false,readOnly:1,exec:function(o){var p,q=o.config,r=q.baseHref?'<base href="'+q.baseHref+'"/>':'',s=b.isCustomDomain();if(q.fullPage)p=o.getData().replace(/<head>/,'$&'+r).replace(/[^>]*(?=<\/title>)/,'$& — '+o.lang.preview);
76 + else{var t='<body ',u=o.document&&o.document.getBody();if(u){if(u.getAttribute('id'))t+='id="'+u.getAttribute('id')+'" ';if(u.getAttribute('class'))t+='class="'+u.getAttribute('class')+'" ';}t+='>';p=o.config.docType+'<html dir="'+o.config.contentsLangDirection+'">'+'<head>'+r+'<title>'+o.lang.preview+'</title>'+e.buildStyleHtml(o.config.contentsCss)+'</head>'+t+o.getData()+'</body></html>';}var v=640,w=420,x=80;try{var y=window.screen;v=Math.round(y.width*0.8);w=Math.round(y.height*0.7);x=Math.round(y.width*0.1);}catch(C){}var z='';if(s){window._cke_htmlToLoad=p;z='javascript:void( (function(){document.open();document.domain="'+document.domain+'";'+'document.write( window.opener._cke_htmlToLoad );'+'document.close();'+'window.opener._cke_htmlToLoad = null;'+'})() )';}var A=<!--ow.open(z,null,'toolbar=yes,location=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width='+v+',height='+w+',left='+-->if(!s){var B=A.document;B.open();B.write(p);B.close();b.webkit&&setTimeout(function(){B.body.innerHTML+='';},0);}}},n='preview';j.add(n,{init:function(o){o.addCommand(n,m);o.ui.addButton('Preview',{label:o.lang.preview,command:n});}});})();j.add('print',{init:function(m){var n='print',o=m.addCommand(n,j.print);m.ui.addButton('Print',{label:m.lang.print,command:n});}});j.print={exec:function(m){if(b.opera)return;else if(b.gecko)m.window.$.print();else m.document.$.execCommand('Print');},canUndo:false,readOnly:1,modes:{wysiwyg:!b.opera}};j.add('removeformat',{requires:['selection'],init:function(m){m.addCommand('removeFormat',j.removeformat.commands.removeformat);m.ui.addButton('RemoveFormat',{label:m.lang.removeFormat,command:'removeFormat'});m._.removeFormat={filters:[]};}});j.removeformat={commands:{removeformat:{exec:function(m){var n=m._.removeFormatRegex||(m._.removeFormatRegex=new RegExp('^(?:'+m.config.removeFormatTags.replace(/,/g,'|')+')$','i')),o=m._.removeAttributes||(m._.removeAttributes=m.config.removeFormatAttributes.split(',')),p=j.removeformat.filter,q=m.getSelection().getRanges(1),r=q.createIterator(),s;while(s=r.getNextRange()){if(!s.collapsed)s.enlarge(1);var t=s.createBookmark(),u=t.startNode,v=t.endNode,w,x=function(z){var A=new d.elementPath(z),B=A.elements;for(var C=1,D;D=B[C];C++){if(D.equals(A.block)||D.equals(A.blockLimit))break;if(n.test(D.getName())&&p(m,D))z.breakParent(D);}};x(u);if(v){x(v);w=u.getNextSourceNode(true,1);while(w){if(w.equals(v))break;var y=w.getNextSourceNode(false,1);if(!(w.getName()=='img'&&w.data('cke-realelement'))&&p(m,w))if(n.test(w.getName()))w.remove(1);