title: shinycssloader keeps loading even after activity is finished
body: <pre><code>tabPanel("Call Tab",
  
                   wellPanel(style = "background: white",
                        wellPanel(style = "background: #ff6666",
                                h4("Case1:EWS&amp;0Count"),
                                h5("Check")
                        ),        
  
                      formattableOutput("case1.Table")  %&gt;% withSpinner()
  
                    ),
  </code></pre>
  
  <p>The withSpinner of shinycssloaders package keeps on loading even after the table output is generated.</p>