Fixed AirMusic empty search keyword bug

web/Music/index.html

@@ -576,6 +576,11 @@
 			alert("Search keyword cannot contains & or ? symbol.");
 			return;
 		}
+
+		if (keyword = ""){
+			//Empty keyword. Return nothing
+			return;
+		}
 		//Clear the mainList, replace with a dummy loading screen
 		$("#mainList").html('<div class="mainList item whiteFont">\
 			<div class="ts header" style="margin:0px !important;padding-bottom:15px;padding-top:5px;">\