Index: /issm/trunk-jpl/src/m/plot/webgl.js
===================================================================
--- /issm/trunk-jpl/src/m/plot/webgl.js	(revision 19819)
+++ /issm/trunk-jpl/src/m/plot/webgl.js	(revision 19820)
@@ -139,27 +139,25 @@
 	shaders = {};
 	shaders[shaderName] = {loaded:false, vsh:{}, fsh:{}};
-	shaders["colored"]["vsh"]["string"] = `
-		attribute vec3 aVertexPosition;
-		attribute vec4 aVertexColor;
-
-		uniform mat4 uMVPMatrix;
-		uniform float uAlpha;
-
-		varying vec4 vColor;
-
-		void main(void) {
-			gl_Position = uMVPMatrix * vec4(aVertexPosition.xyz, 1.0);
-			vColor = vec4(aVertexColor.xyz, uAlpha);
-		}
-	`;
-	shaders["colored"]["fsh"]["string"] = `
-		precision mediump float;
-
-		varying vec4 vColor;
-
-		void main(void) {
-			gl_FragColor = vColor;
-		}
-	`;
+	shaders["colored"]["vsh"]["string"] = 
+		['attribute vec3 aVertexPosition;',
+		'attribute vec4 aVertexColor;',
+		'',
+		'uniform mat4 uMVPMatrix;',
+		'uniform float uAlpha;',
+		'',
+		'varying vec4 vColor;',
+		'',
+		'void main(void) {',
+		'	gl_Position = uMVPMatrix * vec4(aVertexPosition.xyz, 1.0);',
+		'	vColor = vec4(aVertexColor.xyz, uAlpha);',
+		'}'].join('\n');
+	shaders["colored"]["fsh"]["string"] =
+		['precision mediump float;',
+		'',
+		'varying vec4 vColor;',
+		'',
+		'void main(void) {',
+		'	gl_FragColor = vColor;',
+		'}'].join('\n');
 
 	shaders[shaderName]["vsh"]["shader"] = getShaderByString(gl, shaders[shaderName]["vsh"]["string"], "vsh");