Remove head script not working in custom component

Question

I'm using this lines to remove header scripts of Joomla I don't need it :

$doc = JFactory::getDocument();

$dontInclude = array(
    '/media/jui/js/bootstrap.min.js'
);

foreach($doc->_scripts as $key => $script){
    if(in_array($key, $dontInclude)){
        unset($doc->_scripts[$key]);
    }
} 

Everything works fine in all pages except those who point to a custom component. There is no override of head in my component and cache is disabled.

I'm using Joomla 3.3.3

Edit: If I print the document object from my component, scripts is an empty array...

Thanks in advance

Answer 1

You should probably be doing this in a system plugin using the onBeforeRender event. At this point in execution, the page is about to be rendered, so the scripts should be in place.

Something like this:

function onBeforeRender() {
  $doc = JFactory::getDocument();

  $dontInclude = array(
    '/media/jui/js/bootstrap.min.js'
  );

  foreach($doc->_scripts as $key => $script){
    if(in_array($key, $dontInclude)){
        unset($doc->_scripts[$key]);
    }
  } 
}