projectPart2/Problem1: Made updateHeader a bit safer

projectSecondPart/src/photo-share/components/top-bar/TopBar.jsx

@@ -27,6 +27,7 @@ class TopBar extends React.Component {
 
 	updateHeader = (pathname) => {
 		const path = pathname.split('/');
+		if (path[2] && path[3]) {
 			const user = PROG2053Models.userModel(path[3]);
 			let newContext = '';
 			if (path[2] === 'photos') {
@@ -34,6 +35,7 @@ class TopBar extends React.Component {
 			}
 			newContext += `${user.first_name} ${user.last_name}`;
 			this.setState({headerContext: newContext});
+		}
 	};
 
 	render() {