BI-25467

src/case/richeditor/niceditor/niceditor.js

@@ -307,16 +307,17 @@
         insertHTML: function (html) {
             var range = this.getRng();
 
-            if (document.queryCommandState("insertHTML")) {
+            try {
-                // W3C
                 this.nicCommand("insertHTML", html);
-            } else if (range.insertNode) {
+            } finally {
-                // IE
+                if (range.insertNode) {
-                range.deleteContents();
+                    // IE
-                range.insertNode($(html)[0]);
+                    range.deleteContents();
-            } else if (range.pasteHTML) {
+                    range.insertNode($(html)[0]);
-                // IE <= 10
+                } else if (range.pasteHTML) {
-                range.pasteHTML(html);
+                    // IE <= 10
+                    range.pasteHTML(html);
+                }
             }
         },