diff --git a/bower.json b/bower.json
index 8601a48..fa6ea66 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "strolch-wc-information-dialog",
   "description": "Strolch WebComponent Information Dialog",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "authors": [
     "Robert von Burg"
   ],
diff --git a/strolch-wc-information-dialog.html b/strolch-wc-information-dialog.html
index 7b7ecf8..e663ec8 100644
--- a/strolch-wc-information-dialog.html
+++ b/strolch-wc-information-dialog.html
@@ -66,28 +66,36 @@
                     value: './locales.json'
                 },
                 title: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 line1: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 line2: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 line3: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 cancelLbl: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 okLbl: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 closeLbl: {
-                    type: String
+                    type: String,
+                    value: null
                 },
                 confirmation: {
-                    type: Boolean
+                    type: Boolean,
+                    value: false
                 },
                 cancelable: {
                     type: Boolean,
@@ -104,7 +112,7 @@
             },
 
             isNotEmptyString: function (val) {
-                return Strolch.isNotEmptyString();
+                return val != null && typeof val === "string" && val.length > 0;
             },
 
             observers: [],