diff --git a/src/js/nodeslistman.js b/src/js/nodeslistman.js
index caf41cd..80940ae 100644
--- a/src/js/nodeslistman.js
+++ b/src/js/nodeslistman.js
@@ -322,10 +322,12 @@ var onListNodes = function (obj) {
                     "render": function (data, type, row, meta) {
                         const firstBg = data.indexOf(">");
                         const secondSl = data.substring(1).indexOf("<");
-                        const aTag = data.substring(0, firstBg + 1)
-                        const aTagTail = data.substring(secondSl + 1)
-                        const name = data.substring(firstBg + 1, secondSl + 1)
-                        let html = name.length > 15 ?
+                        const aTag = firstBg === -1 ? "" : data.substring(0, firstBg + 1);
+                        const aTagTail = secondSl === -1 ? "" : data.substring(secondSl + 1);
+                        const name = firstBg === -1 || secondSl === -1 ?
+                            data :
+                            data.substring(firstBg + 1, secondSl + 1);
+                        const html = name.length > 15 ?
                             `<span title='${name}'>${name.substring(0, 15)}  ...</span>` :
                             name;
                         return aTag + html + aTagTail;