SimpleSAMLPHP NoState错误

我设置了两个simplesamlphp服务器，它们都位于同一个物理服务器上，但由virtualhost分隔。他们目前在域中

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id.saml.domain.com

您可以尝试更改config.php中的session store.type。您可以在服务提供商或身份提供商中执行此操作。从某种意义上说，这两种方法具有不同的会话存储。对我有用

    $lib = "/ltsites/saml/service/lib";
    $sp = "default-sp";  // Name of SP defined in config/authsources.php

    try {
        // Autoload simplesamlphp classes.
        if(!file_exists("{$lib}/_autoload.php")) {
            throw(new Exception("simpleSAMLphp lib loader file does not exist: ".
            "{$lib}/_autoload.php"));
        }

        include_once("{$lib}/_autoload.php");
        $as = new SimpleSAML_Auth_Simple($sp);

        // Take the user to IdP and authenticate.
        $as->requireAuth();
        $valid_saml_session = $as->isAuthenticated();

    } catch (Exception $e) {
        // SimpleSAMLphp is not configured correctly.
        throw(new Exception("SSO authentication failed: ". $e->getMessage()));
        return;
    }

    if (!$valid_saml_session) {
        // Not valid session. Redirect a user to Identity Provider
        try {
            $as = new SimpleSAML_Auth_Simple($sp);
            $as->requireAuth();
        } catch (Exception $e) {
            // SimpleSAMLphp is not configured correctly.
            throw(new Exception("SSO authentication failed: ". $e->getMessage()));
            return;
        }
    }

    // At this point, the user is authenticated by the Identity Provider, and has access
    // to the attributes received with SAML assertion.
    $attributes = $as->getAttributes();

State information lost   
SimpleSAML_Error_NoState: NOSTATE