/**
* Rendering is the process of pushing the document buffers into the template
* placeholders, retrieving data from the document and pushing it into
* the application response buffer.
*
* @return void
*
* @since 4.0.0
*
* @note Rendering should be overridden to get rid of the theme files.
*/
protected function render()
{
// Render the document
$this->setBody($this->document->render($this->allowCache()));
}