Neos\Neos\Routing\FrontendNodeRoutePartHandler::matchValue PHP Method

    protected function matchValue($requestPath)
    {
        try {
            /** @var NodeInterface $node */
            $node = null;
            // Build context explicitly without authorization checks because the security context isn't available yet
            // anyway and any Entity Privilege targeted on Workspace would fail at this point:
            $this->securityContext->withoutAuthorizationChecks(function () use(&$node, $requestPath) {
                $node = $this->convertRequestPathToNode($requestPath);
            });
        } catch (Exception $exception) {
            $this->systemLogger->log('FrontendNodeRoutePartHandler matchValue(): ' . $exception->getMessage(), LOG_DEBUG);
            if ($requestPath === '') {
                throw new Exception\NoHomepageException('Homepage could not be loaded. Probably you haven\'t imported a site yet', 1346950755, $exception);
            }
            return false;
        }
        if ($this->onlyMatchSiteNodes() && $node !== $node->getContext()->getCurrentSiteNode()) {
            return false;
        }
        $this->value = $node->getContextPath();
        return true;
    }