Merge branch 'master' of github.com:faisalman/ua-parser-js into master

Author: faisalman

src/ua-parser.js

@@ -806,7 +806,7 @@
             return _ua;
         };
         this.setUA = function (ua) {
-            _ua = ua.length > UA_MAX_LENGTH ? util.trim(ua, UA_MAX_LENGTH) : ua;
+            _ua = (typeof ua === STR_TYPE && ua.length > UA_MAX_LENGTH) ? util.trim(ua, UA_MAX_LENGTH) : ua;
             return this;
         };
         this.setUA(_ua);

test/test.js

@@ -46,6 +46,14 @@ describe('UAParser()', function () {
     assert.deepStrictEqual(UAParser(ua), new UAParser().setUA(ua).getResult());
 });
 
+describe('UAParser() constructor does not throw with undefined ua argument', function () {
+    assert.doesNotThrow(() => new UAParser(undefined).getResult());
+});
+
+describe('UAParser.setUA method does not throw with undefined ua argument', function () {
+    assert.doesNotThrow(() => new UAParser().setUA(undefined).getResult());
+});
+
 for (var i in methods) {
     describe(methods[i]['title'], function () {
         for (var j in methods[i]['list']) {