fix Issue mudcube#14

Author: mudcube

js/MIDI/Player.js

@@ -112,9 +112,6 @@ root.loadFile = function (file, callback) {
 		return;
 	}
 	///
-	var title = file.split(" - ")[1] || file;
-	document.getElementById("playback-title").innerHTML = title.replace(".mid","");
-	///
 	var fetch = new XMLHttpRequest();
 	fetch.open('GET', file);
 	fetch.overrideMimeType("text/plain; charset=x-user-defined");

js/MIDI/Plugin.js

@@ -137,6 +137,9 @@ if (window.AudioContext || window.webkitAudioContext) (function () {
 		var synth = MIDI.GeneralMIDI.byName[instrument];
 		var instrumentId = synth.number;
 		var url = urlList[index];
+		if (!MIDI.Soundfont[instrument][url]) { // missing soundfont
+			return callback(instrument);
+		}
 		var base64 = MIDI.Soundfont[instrument][url].split(",")[1];
 		var buffer = Base64Binary.decodeArrayBuffer(base64);
 		ctx.decodeAudioData(buffer, function (buffer) {