Why Zend_Log_Writer_Firebug can't log messages from dispatchLoopShutdown plugin?

Question

Why logs can be sent from dispatchLoopShutdown plugin as it occurs before Zend_Controller_Response_Abstract->sendResponse() and any headers haven't been sent yet ?

I init logger resource in my bootstrap

  protected function _initLogger()
  {
    $writer = new Zend_Log_Writer_Firebug();
    $logger = new Zend_Log($writer);

    Zend_Registry::set('logger', $logger);
    return $logger;
  }

and use it from anywhere

Zend_Registry::get('logger')->debug('test');

and it works up to dispatchLoopShutdown plugin execution point...

Answer 1

AFAIK the Firebug writer has his own plugin in the dispatchLoopShutdown to inject the data in the response. You should add your plugin with a lower priority (see manual).