#0 engine/Library/Enlight/Controller/Response/ResponseHttp.php(203): Enlight_Controller_Response_ResponseHttp->canSendHeaders(true)
#1 engine/Shopware/Plugins/Default/Core/HttpCache/Bootstrap.php(880): Enlight_Controller_Response_ResponseHttp->setHeader('Surrogate-Contr...', 'content="ESI/1....')
#2 engine/Shopware/Plugins/Default/Core/HttpCache/Bootstrap.php(384): Shopware_Plugins_Core_HttpCache_Bootstrap->addSurrogateControl(Object(Enlight_Controller_Response_ResponseHttp))
#3 engine/Library/Enlight/Event/Handler/Default.php(91): Shopware_Plugins_Core_HttpCache_Bootstrap->onPostDispatch(Object(Enlight_Controller_ActionEventArgs))
#4 engine/Library/Enlight/Event/EventManager.php(219): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs))
#5 engine/Library/Enlight/Controller/Action.php(233): Enlight_Event_EventManager->notify('Enlight_Control...', Object(Enlight_Controller_ActionEventArgs))
#6 engine/Library/Enlight/Controller/Dispatcher/Default.php(563): Enlight_Controller_Action->dispatch('indexAction')
#7 engine/Library/Enlight/Controller/Front.php(222): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp))
#8 engine/Shopware/Kernel.php(202): Enlight_Controller_Front->dispatch()
#9 vendor/symfony/http-kernel/HttpCache/SubRequestHandler.php(102): Shopware\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#10 vendor/symfony/http-kernel/HttpCache/HttpCache.php(448): Symfony\Component\HttpKernel\HttpCache\SubRequestHandler::handle(Object(Shopware\Kernel), Object(Symfony\Component\HttpFoundation\Request), 1, true)
#11 engine/Shopware/Components/HttpCache/AppCache.php(260): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL)
#12 vendor/symfony/http-kernel/HttpCache/HttpCache.php(420): Shopware\Components\HttpCache\AppCache->forward(Object(Symfony\Component\HttpFoundation\Request), true)
#13 vendor/symfony/http-kernel/HttpCache/HttpCache.php(317): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch(Object(Symfony\Component\HttpFoundation\Request), true)
#14 engine/Shopware/Components/HttpCache/AppCache.php(187): Symfony\Component\HttpKernel\HttpCache\HttpCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true)
#15 vendor/symfony/http-kernel/HttpCache/HttpCache.php(192): Shopware\Components\HttpCache\AppCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true)
#16 engine/Shopware/Components/HttpCache/AppCache.php(116): Symfony\Component\HttpKernel\HttpCache\HttpCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#17 shopware.php(123): Shopware\Components\HttpCache\AppCache->handle(Object(Symfony\Component\HttpFoundation\Request))
#18 {main}