fix for displaying webcontent

data/default/slides.json

@@ -5,7 +5,7 @@
 		"duration": null,
 		"enabled": true,
 		"displayTime": null,
-		"transition": "",
+		"transition": null,
 		"type": "slide",
 		"index": 0
 	},
@@ -28,5 +28,29 @@
 		"type": "slide",
 		"transition": null,
 		"index": 2
+	},
+	{
+		"uuid": "6a538b9f-cc1b-48bd-b3cd-a9a18fdf0428",
+		"name": "localhost",
+		"duration": null,
+		"enabled": true,
+		"displayTime": false,
+		"type": "webpage",
+		"webUrl": "http://localhost",
+		"zoom": 1,
+		"index": 3,
+		"transition": null
+	},
+	{
+		"uuid": "04c227c6-eae8-4eaa-b0df-194fe6af30bc",
+		"name": "test",
+		"duration": null,
+		"enabled": true,
+		"displayTime": true,
+		"type": "webpage",
+		"webUrl": "http://localhost/test",
+		"zoom": 1,
+		"index": 4,
+		"transition": null
 	}
 ]