title: How to add Audio tag in ng-grid cell template
body: <p>I am new to angular Js. I am using ng-grid to list dynamic data. I have audio,video,image as data. When there is only images as data it is appearing properly . How to set audio and video tag in cell template.
  Currently i am getting an error.</p>
  
  <pre><code>scope.pinsview = {
          data: 'userlist',
  
          columnDefs: [
          {field:'image_name',
          displayName:'Pin', 
          cellTemplate:'&lt;div ng-switch="row.getProperty(\'pin_type\')"&gt;'+
                    '&lt;div ng-switch-when="image"&gt;&lt;img  src="/uploads/pins/images/{{row.getProperty(\'image_name\')[0]}}" /&gt;&lt;/div&gt;' +
                      '&lt;div ng-switch-when="audio"&gt; &lt;audio src="/uploads/pins/audio/{{row.getProperty(\'audio_file\')}}"&gt; &lt;/div&gt;' +
                      '&lt;div ng-switch-when="video"&gt;&lt;video src="/uploads/pins/videos/{{row.getProperty(\'video_id\')}}"&gt;&lt;/div&gt;' +
                    '&lt;/div&gt;'
  
              },
              {field: 'description', displayName: 'Pin'},
              {field: 'user_id.username', displayName: 'Pinned By'},
              {field: 'board_id.board_name', displayName: 'Pinned On'},
              {field: 'Actions', cellTemplate:
                          '&lt;a ng-click="deletePin(row.entity)" class="btn btn-mini tip deleteAdmin"  confirmation-needed="Are you sure want to delete this group?" data-original-title="Delete"&gt;&lt;img alt="" src="/assets/images/admin/icons/fugue/cross.png"&gt;&lt;/a&gt;  &lt;a class="btn btn-mini tip pwdReset" ng-click="blockPin(row.entity)" data-original-title="Reset Password"&gt;&lt;img alt="" src="/assets/images/admin/icons/fugue/flag-black.png"&gt;&lt;/a&gt;'}],
          enablePaging: true,
          showFooter: true,
          totalServerItems: 'totalServerItems',
          pagingOptions: $scope.pagingOptions,
      };
  </code></pre>
  
  <p>I am getting this error in my browser console</p>
  
  <pre><code>17angular.js:12332 Error: [$interpolate:noconcat] Error while interpolating: /uploads/pins/audio/{{row.getProperty('audio_file')}}
  Strict Contextual Escaping disallows interpolations that concatenate multiple expressions when a trusted value is required.
  </code></pre>
  
  <p>Can anybody help me to solve this? Thanks in advance.</p>