Fixed bug with passing single literal tilesource on construction

src/viewer.js

@@ -496,7 +496,7 @@ $.Viewer = function( options ) {
     }
 
     // Open initial tilesources
-    if ( this.tileSources && this.tileSources.length) {
+    if (this.tileSources) {
         this.open( this.tileSources );
     }
 

test/demo/collections/main.js

@@ -9,7 +9,7 @@
             var testInitialOpen = true;
             var testOverlays = false;
             var testMargins = false;
-            var testNavigator = true;
+            var testNavigator = false;
             var margins;
 
             var config = {
@@ -22,8 +22,8 @@
                 // referenceStripScroll: 'vertical',
                 navPrevNextWrap: false,
                 preserveViewport: false,
-                collectionMode: true,
+                // collectionMode: true,
-                collectionRows: 1,
+                // collectionRows: 1,
                 // collectionLayout: 'vertical',
                 // collectionTileSize: 10,
                 // collectionTileMargin: 10,
@@ -33,6 +33,20 @@
                 prefixUrl: "../../../build/openseadragon/images/"
             };
 
+            var highsmith = {
+                Image: {
+                    xmlns: "http://schemas.microsoft.com/deepzoom/2008",
+                    Url: "http://openseadragon.github.io/example-images/highsmith/highsmith_files/",
+                    Format: "jpg",
+                    Overlap: "2",
+                    TileSize: "256",
+                    Size: {
+                        Height: "9221",
+                        Width:  "7026"
+                    }
+                }
+            };
+
             if (testInitialOpen) {
                 config.tileSources = [
                     {
@@ -55,6 +69,8 @@
                         height: 1
                     }
                 ];
+
+                // config.tileSources = highsmith;
             }
 
             if (testOverlays) {