title: i need send a parameter from Url mapping class in grails application(its a different use case)
body: <p>i have this </p>
  
  <pre><code> "/"{controller = "normal"
            action = "index"
        }
  </code></pre>
  
  <p>this will come in to play when i give <code>localhost:8080</code> and my need is that i have to send a parameter through this so that requests starting <code>/</code> will enter in to that specified controller and action with that parameter so accordingly i can make some condition to put some functionality in my view. so requests from that mapping have to send some parameter which should not alter my URL which is <code>localhost:8080</code> with that parameter. </p>