title: why "<ng-container> not working in "<tr>" tag
body: <p><strong>Code:</strong></p>
  
  <pre><code>&lt;table&gt;
      &lt;tr&gt;
          &lt;ng-container ng-if="false"&gt; // here ng-container not working
              &lt;td&gt;
              &lt;ng-container ng-if="false"&gt;abc&lt;/ng-container&gt;// here ng-container working fine
              &lt;/td&gt;
              &lt;td&gt;&lt;ng-container ng-if="true"&gt;xyz&lt;/ng-container&gt;&lt;/td&gt;
          &lt;/ng-container&gt;
      &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p><strong>OutPut:</strong></p>
  
  <pre><code>xyz
  </code></pre>
  
  <blockquote>
    <p>here expected output is no one cell was display but in between <code>&lt;tr&gt;</code> and <code>&lt;td&gt;</code> tags <code>&lt;ng-container ng-if="false"&gt;</code> are not working.</p>
  </blockquote>
  
  <p>If anyone idea about this problem please get solution.</p>