title: Modify a page request on refresh/event
body: <p>I'm writing a blog editor that is loaded when a POST request reaches a page, say <strong>blog_editor.php</strong>. The post request data looks like blog_title="This is blog title"</p>
  
  <p>Now blog_editor.php reads the blog title from the post request, if it exists blog_id is read from the DB and the content is ready for editing otherwise a new DB entry is created.</p>
  
  <p>Now I've given an option of inline editing of blog_title which should be saved using ajax.</p>
  
  <p><code>My problem here is, the page is looking for a unique blog_title. If user modifies the blog title inline and then does a page refresh, it creates a new blog with old blog_title as POST request still contains old title.</code></p>
  
  <p>Can I modify this post data someway?</p>