Unhelpful error pages when logged out

[itsrachelfish]

If you're on a protected page (for example, editing your own application) you will see a 404 page if your session times out. If you try to save an answer, upload a new document, or refresh the page when logged out, you'll see this 404 page:

Whoops, looks like something went wrong.
1/1 MethodNotAllowedHttpException in RouteCollection.php line 219

You should be redirected to the login page instead