(Migrated this question from Stack Overflow)

I am working on a client's website which is based on the Joomla 2.5 framework. With SEF turned off (the in built Joomla version) the URL is this

http://(domain)/index.php?option=com_cmgroupbuying&view=alldeals&Itemid=424

The user has a plugin, I have built into a plugin the line to make sure this plugin only fires when the component CMGroupbuying is in use

$component = JRequest::getCmd('option'); 
if($component =='com_cmgroupbuying')
               { etc etc }

With SEF turned off, this works beautifully. However when I enable SEF the URL turns into

http://(domain)/the-deals

and the detection script stops working as joomla just no longer sees the Request::getCmd('option'); being equal to com_cmgroupbuying which to be honest, blows me away as it renders getCmd totally useless. I have seen other prople suffer with this in the part but not found any definitive fix

Can anyone offer a solution to stop this failure of Joomla, either by some extra lines in the DEFAULT htaccess fault to retain this information for joomla to use.

An alternative solution, though I have not found anything that does this, is to limit the plugin to only certain menu items like you can do with a module.

EDIT

This is the full code of the plugin. I have not included the helper as this is just a mass list of all agents for lookups.

<?php /**  * @package     CMMobileDetection plugin  * @copyright   Copyright (C) 2012-2013 CMExtension Team http://www.cmext.vn/  * @license     http://www.gnu.org/licenses/gpl-3.0.html GNU/GPL  */

// No direct access defined('_JEXEC') or die;

jimport('joomla.plugin.plugin');

require_once 'helper.php';

class plgSystemCMMobileDetection extends JPlugin {
    public function onAfterInitialise()
    {
        if(JPATH_BASE != JPATH_ADMINISTRATOR)
        {
            $browser        = new Mobile_Detect();
            $mobileCookie   = JFactory::getApplication()->input->cookie->get('cmmobileRequestDesktop',
-1, 'int');
            $component      = JRequest::getVar('option');

            if(($browser->isMobile() || $browser->isTablet()) && ($mobileCookie == 0 || $mobileCookie == -1) && $component == 'com_cmgroupbuying')
            {
                $configuration  = $this->getConfiguration();
                $db             = JFactory::getDBO();
                $query          = "SELECT params FROM #__template_styles WHERE client_id = 0 AND template = ".$db->Quote($configuration['mobile_template'])." ORDER BY id LIMIT 1";
                $db->setQuery($query);
                $params         = $db->loadResult();

                if(empty($params))
                    $params = '{}';

                JFactory::getApplication()->setTemplate($configuration['mobile_template'], $params);
            }
        }
    }

    public function getConfiguration()
    {
        $db             = JFactory::getDBO();
        $query          = 'SELECT * FROM #__cmgroupbuying_configuration WHERE id = 1';
        $db->setQuery($query);
        $configuration  = $db->loadAssoc();

        if($db->getErrorNum())
        {
            //JError::raiseError(500, implode('<br />', $errors));
            return false;
        }

        return $configuration;
    } } ?>

This does include my alteration, which basically has one function, stop the plugin loading on ANY page that is NOT using option=com_cmgroupbuying as it interferes with the mobile template of all the other pages. As already stated, this works beautifully when SEF is turned off.