fix: utf8 issue

Author: brettz9

src/15utility.js

@@ -442,6 +442,26 @@ 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;
+		});
+}
+
+async function fetchBinaryData(path, success, error, async) {
+	if (async) {
+		return getBinaryData(path, success, error);
+	}
+	return await getBinaryData(path, success, error);
+}
+
+function getBinaryData(path, success, error) {
 	return _fetch(path)
 		.then(response => response.arrayBuffer())
 		.then(buf => {
@@ -481,7 +501,7 @@ var loadBinaryFile = (utils.loadBinaryFile = function (
 		fs = require('fs');
 
 		if (/^[a-z]+:\/\//i.test(path)) {
-			fetchData(path, success, error, runAsync);
+			fetchBinaryData(path, success, error, runAsync);
 		} 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: '\u1234'}]);
 			done();
 		});
 	});

test/test157.json

@@ -1 +1 @@
-[{"a": 1}, {"a": 2}]
+[{"a": 1}, {"a": 2}, {"c": "\u1234"}]