fix: utf8 issue

Author: brettz9

src/15utility.js

@@ -442,6 +442,19 @@ async function fetchData(path, success, error, async) {
 }
 
 function getData(path, success, error) {
+	return _fetch(path)
+		.then(response => response.text())
+		.then(txt => {
+			success(txt);
+		})
+		.catch(e => {
+			if (error) return error(e);
+			console.error(e);
+			throw e;
+		});
+}
+
+function getBinaryData(path, success, error) {
 	return _fetch(path)
 		.then(response => response.arrayBuffer())
 		.then(buf => {
@@ -481,7 +494,7 @@ var loadBinaryFile = (utils.loadBinaryFile = function (
 		fs = require('fs');
 
 		if (/^[a-z]+:\/\//i.test(path)) {
-			fetchData(path, success, error, runAsync);
+			return getBinaryData(path, success, error);
 		} else {
 			if (runAsync) {
 				fs.readFile(path, function (err, data) {

test/test157.js

@@ -10,7 +10,7 @@ describe('Test 157 - json()', function () {
 	it('1. Load text data from file async', function (done) {
 		alasql('select * from json("' + __dirname + '/test157.json")', [], function (res) {
 			//			console.log(13,res);
-			assert.deepEqual(res, [{a: 1}, {a: 2}]);
+			assert.deepEqual(res, [{a: 1}, {a: 2}, {c: '😂'}]);
 			done();
 		});
 	});

test/test157.json

@@ -1 +1 @@
-[{"a": 1}, {"a": 2}]
+[{"a": 1}, {"a": 2}, {"c": "😂"}]

test/test2112.dat

@@ -0,0 +1 @@
+�

test/test2112.js

@@ -0,0 +1,28 @@
+if (typeof exports === 'object') {
+	var assert = require('assert');
+	var alasql = require('..');
+}
+
+describe('Test 2112 - load binary file', function () {
+	const test = '2112'; // insert test file number
+
+	it('A) Loads binary file (sync)', function () {
+		alasql.utils.loadBinaryFile('./test/test' + test + '.dat', false, function (data) {
+			assert.equal(data, '�');
+		});
+	});
+
+	it('B) Loads binary file (async)', function (done) {
+		alasql.utils.loadBinaryFile('./test/test' + test + '.dat', true, function (data) {
+			assert.equal(data, '�');
+			done();
+		});
+	});
+
+	it('C) Loads HTTPS binary file (async)', function (done) {
+		alasql.utils.loadBinaryFile('https://upload.wikimedia.org/wikipedia/en/a/a9/Example.jpg', true, function (data) {
+			assert.equal(data.slice(0, 3), 'ÿØÿ');
+			done();
+		});
+	});
+});