title: header not showing in ionic
body: <p>ion-view header bar is not displaying in my ionic app. can anyone tell me about the issue? i;ve tried aloot of things to fix it but nothing happens.</p>
  
  <p><strong>Offer.html</strong> </p>
  
  <pre><code>&lt;ion-view style="font-family: 'Lobster', cursive; " view-title="Ad's Cafe"&gt;
  
  &lt;ion-nav-bar class="bar-assertive"&gt;
  
  &lt;ion-nav-back-button&gt;&lt;/ion-nav-back-button&gt;
  
    &lt;ion-content   class="has-header"&gt;
      &lt;ion-list&gt;
         &lt;button style="font-family: 'Cherry Cream Soda', cursive; "class="button button-full button-stable"&gt;
              &lt;i class="ion-speakerphone"&gt;&lt;/i&gt;
                  Offer Details
          &lt;/button&gt;
       &lt;ion-item ng-repeat="offer in offers "&gt;
          &lt;div class="list card"&gt;
          &lt;div class="item item-text-wrap item-divider"&gt;
            &lt;u&gt; &lt;h1&gt;&lt;i class="ion-android-restaurante"&gt;&lt;/i&gt;{{offer.Title}}  &lt;/h1&gt; &lt;/u&gt;
          &lt;/div&gt;
           &lt;div class="item item-text-wrap"&gt;
                 &lt;u&gt;&lt;img style=" border: 1px solid black;
  
                  width: 100%;
                  height: auto"   class="img-responsive " ng-src="{{offer.link}} "
                 &gt;      &lt;/u&gt;
  
          &lt;/div&gt;
          &lt;div class="item item-text-wrap"&gt;
            &lt;h3&gt; {{offer.Desc}} &lt;/h3&gt;
          &lt;/div&gt;
        &lt;/div&gt;
  
        &lt;/ion-item&gt;
      &lt;/ion-list&gt;
    &lt;/ion-content&gt;
  &lt;/ion-view&gt;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/qqjE0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qqjE0.png" alt="enter image description here"></a></p>