title: Append view to an already rendered view in afterView/after action in grails filter
body: <p>I have to conditionally append view to an already rendered view or when action finishes calling render view. The purpose of this is to show debug information on that page. I do not want to append that in individual page. I tried searching for this and found that it is not directly possible. </p>
  
  <p>The issue <a href="http://grails.1312388.n4.nabble.com/Why-use-the-afterView-filter-td3390103.html" rel="nofollow">http://grails.1312388.n4.nabble.com/Why-use-the-afterView-filter-td3390103.html</a> points to similar issue but even this issue is kept unresolved. This post is two years old. Newer version of grails may have solve this issue. </p>
  
  <p>Can any one enlighten me how to do that. </p>