Fixed broken defaultZoomLevel and homeFillsViewer options

src/viewport.js

@@ -230,7 +230,16 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
      * @function
      */
     getHomeBounds: function() {
-        return this.homeBounds.clone();
+        var center = this.homeBounds.getCenter( ),
+            width  = 1.0 / this.getHomeZoom( ),
+            height = width / this.getAspectRatio();
+
+        return new $.Rect(
+            center.x - ( width / 2.0 ),
+            center.y - ( height / 2.0 ),
+            width,
+            height
+        );
     },
 
     /**

test/demo/collections/main.js

@@ -17,6 +17,8 @@
                 zoomPerScroll: 1.02,
                 showNavigator: testNavigator,
                 useCanvas: true,
+                // defaultZoomLevel: 2,
+                // homeFillsViewer: true,
                 // sequenceMode: true,
                 // showReferenceStrip: true,
                 // referenceStripScroll: 'vertical',
@@ -70,7 +72,10 @@
                     }
                 ];
 
-                // config.tileSources = highsmith;
+                // config.tileSources = {
+                //     tileSource: highsmith,
+                //     width: 1
+                // };
             }
 
             if (testOverlays) {

test/viewport.js

@@ -207,7 +207,7 @@
             method: 'getHomeBounds',
             processExpected: function(level, expected) {
                 // Have to special case this to avoid dividing by 0
-                if(level === 0){
+                if(level === -1 || level === 0){
                     expected = new OpenSeadragon.Rect(0, 0, 1, 1);
                 } else {
                     var sideLength = 1.0 / viewer.defaultZoomLevel;  // it's a square in this case