id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 8482,DispHTMLUnknownElement with invalid code,matteo.ugolini,,"By selecting a dom range who contains invalid Html tags, IE causes an error in the error function at the line 201 of the element.js: this.$.appendChild( node.$ ); In the case value contains an invalid tag, fe.: some content, the ""this.$"" is an instance of DispHTMLUnknownElement who doesn't implements the appendChild function. the error is caused by the range.select(true), this.createBookmark(); line 1636 plugins/selection/plugin.js, clone.insertNode( startNode ); line 528 /core/dom/range.js We are currently experiencing this issue with IE 8 and 9, we haven't tried with prior version of the software. ",Bug,confirmed,Normal,,General,3.1,,IE,