diff --git a/qrcode.js b/qrcode.js
index 5507c15..2151859 100644
--- a/qrcode.js
+++ b/qrcode.js
@@ -32,20 +32,22 @@ var QRCode;
 		this.parsedData = [];
 
 		// Added to support UTF-8 Characters
+		var getCode = data.codePointAt || data.charCodeAt;		// IE <= 11 doesn't has codePointAt
 		for (var i = 0, l = this.data.length; i < l; i++) {
 			var byteArray = [];
-			var code = this.data.charCodeAt(i);
+			var code = getCode.call(data, i);
 
-			if (code > 0x10000) {
+			if (code >= 0x10000) {
 				byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
 				byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);
 				byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);
 				byteArray[3] = 0x80 | (code & 0x3F);
-			} else if (code > 0x800) {
+				i++;
+			} else if (code >= 0x800) {
 				byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);
 				byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);
 				byteArray[2] = 0x80 | (code & 0x3F);
-			} else if (code > 0x80) {
+			} else if (code >= 0x80) {
 				byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);
 				byteArray[1] = 0x80 | (code & 0x3F);
 			} else {