Neos\FluidAdaptor\Core\Widget\AbstractWidgetViewHelper::initiateSubRequest PHP Method

    protected function initiateSubRequest()
    {
        if ($this->controller instanceof DependencyProxy) {
            $this->controller->_activateDependency();
        }
        if (!$this->controller instanceof AbstractWidgetController) {
            throw new Exception\MissingControllerException('initiateSubRequest() can not be called if there is no controller inside $this->controller. Make sure to add the @Neos\\Flow\\Annotations\\Inject annotation in your widget class.', 1284401632);
        }
        /** @var $subRequest ActionRequest */
        $subRequest = $this->objectManager->get(ActionRequest::class, $this->controllerContext->getRequest());
        /** @var $subResponse Response */
        $subResponse = $this->objectManager->get(Response::class, $this->controllerContext->getResponse());
        $this->passArgumentsToSubRequest($subRequest);
        $subRequest->setArgument('__widgetContext', $this->widgetContext);
        $subRequest->setArgumentNamespace('--' . $this->widgetContext->getWidgetIdentifier());
        $dispatchLoopCount = 0;
        while (!$subRequest->isDispatched()) {
            if ($dispatchLoopCount++ > 99) {
                throw new InfiniteLoopException('Could not ultimately dispatch the widget request after ' . $dispatchLoopCount . ' iterations.', 1380282310);
            }
            $widgetControllerObjectName = $this->widgetContext->getControllerObjectName();
            if ($subRequest->getControllerObjectName() !== '' && $subRequest->getControllerObjectName() !== $widgetControllerObjectName) {
                throw new Exception\InvalidControllerException(sprintf('You are not allowed to initiate requests to different controllers from a widget.' . chr(10) . 'widget controller: "%s", requested controller: "%s".', $widgetControllerObjectName, $subRequest->getControllerObjectName()), 1380284579);
            }
            $subRequest->setControllerObjectName($this->widgetContext->getControllerObjectName());
            try {
                $this->controller->processRequest($subRequest, $subResponse);
            } catch (StopActionException $exception) {
                if ($exception instanceof ForwardException) {
                    $subRequest = $exception->getNextRequest();
                    continue;
                }
                /** @var $parentResponse Response */
                $parentResponse = $this->controllerContext->getResponse();
                $parentResponse->setStatus($subResponse->getStatusCode())->setContent($subResponse->getContent())->setHeader('Location', $subResponse->getHeader('Location'));
                throw $exception;
            }
        }
        return $subResponse;
    }