Piwik\FrontController::handleSSLRedirection PHP Method

    protected function handleSSLRedirection()
    {
        // Specifically disable for the opt out iframe
        if (Piwik::getModule() == 'CoreAdminHome' && Piwik::getAction() == 'optOut') {
            return;
        }
        // Disable Https for VisitorGenerator
        if (Piwik::getModule() == 'VisitorGenerator') {
            return;
        }
        if (Common::isPhpCliMode()) {
            return;
        }
        // proceed only when force_ssl = 1
        if (!SettingsPiwik::isHttpsForced()) {
            return;
        }
        Url::redirectToHttps();
    }