src/Tools/jEdit/src/jedit/html_panel.scala

 
   private val ucontext = new SimpleUserAgentContext
   private val rcontext = new SimpleHtmlRendererContext(this, ucontext)
   {
     private def handle(event: HTML_Panel.Event): Boolean =
-      if (handler.isDefinedAt(event)) { handler(event); true }
-      else false
+      if (handler.isDefinedAt(event)) { handler(event); false }
+      else true
 
     override def onContextMenu(elem: HTMLElement, event: MouseEvent): Boolean =
       handle(HTML_Panel.Context_Menu(elem, event))
     override def onMouseClick(elem: HTMLElement, event: MouseEvent): Boolean =
       handle(HTML_Panel.Mouse_Click(elem, event))