diff --git a/test/browser_test.html b/test/browser_test.html
index 0c6b52a..0593bfb 100644
--- a/test/browser_test.html
+++ b/test/browser_test.html
@@ -69,6 +69,7 @@
 			display: block;
 			border: 1px solid rgba(0, 0, 0, .12);
 			margin-bottom: 20px;
+			width: 100%;
 		}
 
 		.clear {
@@ -173,10 +174,10 @@ <h1 class="left">Image SSIM
 		var img = new Image();
 		img.onload = function () {
 			var canvas = document.createElement('canvas');
-			canvas.width = width;
-			canvas.height = height;
+			canvas.width = img.width;
+			canvas.height = img.height;
 			var ctx = canvas.getContext('2d');
-			ctx.drawImage(img, 0, 0, width, canvas.height);
+			ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
 			var id = ctx.getImageData(0, 0, canvas.width, canvas.height);
 			done({width: canvas.width, height: canvas.height, data: id.data, channels: 4, canvas: canvas}, index);
 		};
@@ -214,7 +215,12 @@ <h1 class="left">Image SSIM
 			log.windowSize = pair[2];
 			log.luminance = pair[3];
 			var start = new Date().getTime();
-			var res = ImageSSIM.compare(images[0], images[1], pair[2], 0.01, 0.03, pair[3])
+			var res;
+			try {
+				res = ImageSSIM.compare(images[0], images[1], pair[2], 0.01, 0.03, pair[3])
+			} catch (e) {
+				alert(e);
+			}
 			log.ssim = Math.round(res.ssim * 1000) / 1000;
 			// log.mcs = Math.round(res.mcs * 1000) / 1000;
 			log.ellapsed = new Date().getTime() - start + 'ms';