added create loading el function

src/ui/heat_map.js

@@ -199,7 +199,7 @@ morpheus.HeatMap = function (options) {
 			symmetric: false,
 			keyboard: true,
 			inlineTooltip: true,
-			$loadingImage: $('<div style="overflow:hidden;text-align:center;"><i class="fa fa-spinner fa-spin fa-3x"></i><span style="padding-left:4px;vertical-align:middle;font-weight:bold;">Loading...</span></div>'),
+			$loadingImage: morpheus.Util.createLoadingEl(),
 			/**
 			 * Whether this heat map tab can be closed
 			 */
@@ -232,7 +232,7 @@ morpheus.HeatMap = function (options) {
 		options.landingPage = new morpheus.LandingPage();
 		options.landingPage.$el.prependTo(this.$el);
 	}
-	if (!this.options.name) {
+	if (this.options.name == null) {
 		this.options.name = morpheus.Util
 		.getBaseFileName(morpheus.Util
 		.getFileName(this.options.dataset.file ? this.options.dataset.file

src/util/util.js

@@ -207,7 +207,6 @@ morpheus.Util.getFileName = function (fileOrUrl) {
 		return fileOrUrl.name;
 	}
 	var name = '' + fileOrUrl;
-
 	var question = name.indexOf('?');
 	if (question !== -1) {
 		var params = name.substring(question + 1);
@@ -223,9 +222,14 @@ morpheus.Util.getFileName = function (fileOrUrl) {
 		}
 	} else {
 		var slash = name.lastIndexOf('/');
-		if (slash !== -1 && slash < name.length - 1) {
-			// https://s3.amazonaws.com/data.clue.io/icv/dosval/BRD-K45711268_10_UM_24_H/pcl_cell.gct?AWSAccessKeyId=AKIAJZQISWLUKFS3VUKA&Expires=1455761050&Signature=HVle9MvXV3OGRZHOngdm2frqER8%3D
+		if (slash === name.length - 1) {
+			name = name.substring(0, name.length - 1);
+			slash = name.lastIndexOf('/');
+		}
+		if (slash !== -1) {
 			name = name.substring(slash + 1); // get stuff after slash
+			// https://s3.amazonaws.com/data.clue.io/icv/dosval/BRD-K45711268_10_UM_24_H/pcl_cell.gct?AWSAccessKeyId=AKIAJZQISWLUKFS3VUKA&Expires=1455761050&Signature=HVle9MvXV3OGRZHOngdm2frqER8%3D
+
 		}
 	}
 	return name;
@@ -1297,6 +1301,9 @@ morpheus.Util.createValueToIndices = function (array, field) {
 	return map;
 };
 
+morpheus.Util.createLoadingEl = function () {
+	return $('<div style="overflow:hidden;text-align:center;"><i class="fa fa-spinner fa-spin fa-3x"></i><span style="padding-left:4px;vertical-align:middle;font-weight:bold;">Loading...</span></div>');
+};
 /**
  * Splits a string by the new line character, trimming whitespace
  */