title: Assignment to readonly property error in a uiwebview
body: <p>WHEN I WRITE:</p>
  
  <pre><code>self.recipeSiteView.request = recipe.page ;
  </code></pre>
  
  <p>XCODE SAY  :   "assignment to readonly property "</p>
  
  <p>I modified a template code :     </p>
  
  <pre><code>self.recipePhoto.image = [UIImage imageNamed:recipe.imageFile];
  </code></pre>
  
  <p>how can I use this expression for a UIWEBView?</p>