I created an observer to catch the event when a new url is requested with

<event name="controller_front_send_response_before">
    <observer name="brands_index_events_observer" instance="WiserobotT\ManufacturerinfoT\Observer\BrandObserver" />

I check the Url if it matches abc/xyz.html, then set routeName, ControllerName and ActionName:

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        //get request object
$requestOb = $objectManager->get('Magento\Framework\App\Request\Http');

I use var_dump($requestOb->getFullActionName()); and a get

string(29) `catalogsearch_advanced_result`

Good! But the page still shows: The page you requested was not found...

I want the page to have content like the catalogsearch/advanced/result page but still keep the old url.

3 Answers 3


Finally to solved my problem. Thanks God. hahaha after use this to set controllerName,RouteName, actionName, and params

$request->setModuleName('catalogsearch')->setControllerName('advanced')->setActionName('result')->setParam('manufacturer', $_manu->getData('option_id'));

a found an error with this code in controller Magento\CatalogSearch\Controller\Advanced\Result

$this->_catalogSearchAdvanced->addFilters($this->getRequest()->getQueryValue()); I rewrite this controller and fix this code to $this->_catalogSearchAdvanced->addFilters($this->getRequest()->getParams()); DONE. It's work perfect.


Try following way

<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="controller_front_send_response_before">
        <observer name="custom_controller_front_send_response_before" instance="[Vendor]\[Module]\Observer\ResponseObserver"/>

namespace [Vendor]\[Module]\Observer;

use Magento\Framework\Event\ObserverInterface;

class ResponseObserver implements ObserverInterface
     * @var \Magento\Framework\ObjectManagerInterface
    protected $objectManager;

     * @var \Magento\Framework\UrlInterface
    protected $urlBuilder;
     * @param \Magento\Framework\ObjectManagerInterface $objectManager
     * @param \Magento\Framework\UrlInterface $urlManager
    public function __construct(
        \Magento\Framework\ObjectManagerInterface $objectManager,
        \Magento\Framework\UrlInterface $urlBuilder
    ) {
        $this->objectManager = $objectManager;
        $this->urlBuilder = $urlBuilder;

    public function execute(\Magento\Framework\Event\Observer $observer)
        $objectManager = $this->objectManager;
        $requestObj = $objectManager->get('Magento\Framework\App\Request\Http');
        $responseObj = $objectManager->get('Magento\Framework\App\Response\Http');
        // check your condition here
        if($requestObj->getFullActionName() == 'cms_index_index') {
            $url = $this->urlBuilder->getUrl('catalogsearch/advanced/index');

  • thanks!! but the url also change to new url, but a need to keep my own url Apr 8, 2016 at 2:53
  • when catch enable than this not work in Magento2.2.2. Feb 22, 2018 at 13:55

You are using the wrong event. When controller_front_send_response_before is triggered, the request object already has been processed and the complete response HTML (with "The page you requested was not found") generated.

You could use the controller_action_predispatch event instead. This also happens when the responsible controller already has been determined, but it's not executed yet and you can trigger the route matching again with:

  • Thank you so much with that event. It works but the page is mess up with 2 content, one from catalog and one from 404, the title is 404 page. When I put $request->setDispatched(false); I got error Error 503 Service Unavailable Service Unavailable Guru Meditation: XID: 66280584 Varnish cache server Apr 8, 2016 at 4:35
  • I see, the problem is that the "noroute" action (404) behaves differently than others. The correct approach for your problem would be to create a custom router instead of using an observer. It is explained in detail here: inchoo.net/magento-2/routing-in-magento-2 Apr 8, 2016 at 7:03
  • thank you, I think You just show me the right way, but I got error Front controller reached 100 router match iterations > when I try to catch in foreach loop: if(strpos($identifier, $brandprefix) !== false) { foreach ($brandCollection as $key => $_manu) { if(strpos($identifier, $_manu->getData('url_key')) !== false ) { /* * We must set module, controller path and action name for our controller class(Controller/Test/Test.php) */ $request->setModuleName('catalogsearch')->setControllerName('advanced')->setActionName('index'); } } } Apr 8, 2016 at 10:49

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