title: ActionController::RoutingError (No route matches [GET] "/scan"):
body: <p>Getting an error for a simple index route in rails:</p>
  
  <p>Here are my routes:</p>
  
  <pre><code>Prefix Verb URI Pattern           Controller#Action
  scan_index GET  /scan/index(.:format) scan#index
        root GET  /                     scan#index
        scan GET  /scan(.:format)       scan#index
  </code></pre>
  
  <p>Yet, typing in the following url:</p>
  
  <pre><code>http://notrealurl.com/scan
  </code></pre>
  
  <p>Produces the following in error_log:</p>
  
  <pre><code>I, [2015-08-04T15:38:42.902191 #24943]  INFO -- : Started GET "/scan" at 2015-08-04 15:38:42 +0000
  F, [2015-08-04T15:38:42.902936 #24943] FATAL -- : 
  ActionController::RoutingError (No route matches [GET] "/scan"):
  </code></pre>