Check old browser compatibility.

src/synth/images/loading.svg.js

@@ -1,4 +1,4 @@
-const svg = `
+var svg = `
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" class="abcjs-loading-svg">
     <circle cx="50" cy="50" fill="none" stroke-width="20" r="35" stroke-dasharray="160 55"></circle>
 </svg>

src/synth/images/loop.svg.js

@@ -1,4 +1,4 @@
-const svg = `
+var svg = `
 <svg version="1.0" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 700 700" preserveAspectRatio="xMidYMid meet">
 	<g transform="translate(0,700) scale(0.1,-0.1)" >
 	<path d="M3111 6981 c-20 -37 -90 -55 -364 -96 -120 -18 -190 -33 -244 -55

src/synth/images/pause.svg.js

@@ -1,4 +1,4 @@
-const svg = `
+var svg = `
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25" class="abcjs-pause-svg">
   <g>
     <rect width="8.23" height="25"/>

src/synth/images/play.svg.js

@@ -1,4 +1,4 @@
-const svg = `
+var svg = `
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25" class="abcjs-play-svg">
     <g>
     <polygon points="4 0 23 12.5 4 25"/>

src/synth/images/reset.svg.js

@@ -1,4 +1,4 @@
-const svg = `
+var svg = `
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 25">
   <g>
     <polygon points="5 12.5 24 0 24 25"/>

src/write/draw/beam.js

@@ -1,5 +1,5 @@
 var printPath = require('./print-path');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function drawBeam(renderer, params) {
 	if (params.beams.length === 0) return;

src/write/draw/crescendo.js

@@ -1,6 +1,6 @@
 var sprintf = require('./sprintf');
 var printPath = require('./print-path');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function drawCrescendo(renderer, params, selectables) {
 	if (params.pitch === undefined)

src/write/draw/ending.js

@@ -1,7 +1,7 @@
 var sprintf = require('./sprintf');
 var renderText = require('./text');
 var printPath = require('./print-path');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function drawEnding(renderer, params, linestartx, lineendx, selectables) {
 	if (params.pitch === undefined)

src/write/draw/group-elements.js

@@ -2,7 +2,7 @@
  * Begin a group of glyphs that will always be moved, scaled and highlighted together
  */
 
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 	function Group() {
 		this.ingroup = false;

src/write/draw/horizontal-line.js

@@ -1,5 +1,5 @@
 // For debugging, it is sometimes useful to know where you are vertically.
-const sprintf = require("./sprintf");
+var sprintf = require("./sprintf");
 
 function printHorizontalLine(renderer, width, vertical, comment) {
 	var dy = 0.35;

src/write/draw/print-stem.js

@@ -1,5 +1,5 @@
 var elementGroup = require('./group-elements');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function printStem(renderer, x, dx, y1, y2) {
 	if (dx<0 || y1<y2) { // correct path "handedness" for intersection with other elements

src/write/draw/print-vertical-line.js

@@ -1,4 +1,4 @@
-const sprintf = require("./sprintf");
+var sprintf = require("./sprintf");
 
 function printVerticalLine (renderer, x, y1, y2) {
 	var dy = 0.35;

src/write/draw/staff-line.js

@@ -1,5 +1,5 @@
 var sprintf = require('./sprintf');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function printStaffLine(renderer, x1,x2, pitch, klass) {
 	var dy = 0.35;

src/write/draw/text.js

@@ -1,4 +1,4 @@
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function renderText(renderer, params) {
 	var y = params.y;

src/write/draw/tie.js

@@ -1,5 +1,5 @@
 var sprintf = require('./sprintf');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function drawTie(renderer, params, linestartx, lineendx, selectables) {
 	layout(params, linestartx, lineendx);

src/write/draw/triplet.js

@@ -1,7 +1,7 @@
 var sprintf = require('./sprintf');
 var renderText = require('./text');
 var printPath = require('./print-path');
-const roundNumber = require("./round-number");
+var roundNumber = require("./round-number");
 
 function drawTriplet(renderer, params, selectables) {
 	renderer.paper.openGroup({ klass: renderer.controller.classes.generate('triplet '+params.durationClass)});

tests/api/tunebook_svg.test.js

@@ -1,6 +1,6 @@
-const assert = require('chai').assert
-const render = require('../../src/api/abc_tunebook_svg')
-const tunebook = require('../../src/api/abc_tunebook')
+var assert = require('chai').assert
+var render = require('../../src/api/abc_tunebook_svg')
+var tunebook = require('../../src/api/abc_tunebook')
 
 // mock renderEngine Call
 tunebook.renderEngine = function (...args) {

tests/index.test.js

@@ -1,5 +1,5 @@
-const assert = require('chai').assert
-const basic = require('../index')
+var assert = require('chai').assert
+var basic = require('../index')
 
 describe("ABCJS Basic", function () {
 	it('should expose ABCJS as an object', function () {

tests/midi.test.js

@@ -1,6 +1,6 @@
-const assert = require('chai').assert
-const basic = require('../index')
-const midi = require('../midi')
+var assert = require('chai').assert
+var basic = require('../index')
+var midi = require('../midi')
 
 describe("ABCJS Midi", function () {
 	it("should extend ABCJS basic", function () {

tests/parse/book_parser.test.js

@@ -1,5 +1,5 @@
-const assert = require('chai').assert
-const Tunebook = require("../../src/api/abc_tunebook")
+var assert = require('chai').assert
+var Tunebook = require("../../src/api/abc_tunebook")
 /**
  * http://abcnotation.com/wiki/abc:standard:v2.1#xreference_number
  * http://abcnotation.com/wiki/abc:standard:v2.1#ttune_title