Merge pull request #570 from /issues/569/1

Fixes #569: The back arrow should go back to /issues when there's no history

Author: magsout

webcompat/static/js/lib/issues.js

@@ -31,10 +31,14 @@ issues.TitleView = Backbone.View.extend({
       location.origin = location.protocol + '//' + location.host;
     }
 
-    // Only go back in history if we came from the /issues page.
-    if (document.referrer.indexOf(location.origin + '/issues') === 0) {
+    // Only go back in history if we came from the /issues page and there's
+    // actually some history to go back to
+    if ((document.referrer.indexOf(location.origin + '/issues') === 0) &&
+        (history.length !== 1)) {
       history.back();
       e.preventDefault();
+    } else {
+      location.href = '/issues';
     }
   }
 });