Change syntax to see if build passes

.travis.yml

@@ -2,7 +2,7 @@ services:
   - xvfb
 language: node_js
 node_js:
-  - node
+  - 10
 email:
   on_failure: change
   on_success: never

test/specs/helpers/isURLSameOrigin.spec.js

@@ -10,7 +10,8 @@ describe('helpers::isURLSameOrigin', function () {
   });
 
   it('should detect XSS scripts on a same origin request', function () {
-    expect(() => { isURLSameOrigin('https://github.com/axios/axios?<script>alert("hello")</script>'); })
-      .toThrowError(Error, 'URL contains XSS injection attempt')
-  })
+    expect(function() {
+      isURLSameOrigin('https://github.com/axios/axios?<script>alert("hello")</script>');
+    }).toThrowError(Error, 'URL contains XSS injection attempt')
+  });  
 });