resources/www/scripts/explorer.js
function() {
      if (Explorer.hook) {
        MathJax.Hub.UnRegister.MessageHook(Explorer.hook);
        Explorer.hook = null;
      }
    }
function() {
      if (Explorer.hook) {
        MathJax.Hub.UnRegister.MessageHook(Explorer.hook);
        Explorer.hook = null;
      }
    }
function ( ) { if ( Explorer . hook ) { MathJax . Hub . UnRegister . MessageHook ( Explorer . hook ) ; Explorer . hook = null ; } }
Remove and unregister the explorer hook.
Remove and unregister the explorer hook .