Pantheon forced redirects

    if ( isset( $_ENV['PANTHEON_ENVIRONMENT'] ) && 'cli' !== php_sapi_name() ) {
		switch ( $_ENV['PANTHEON_ENVIRONMENT'] ) {
		    case 'live':
				$primary_domain = 'www.directrelief.org';
				break;

			default:
				$primary_domain = $_ENV['PANTHEON_ENVIRONMENT'] . '-directrelief.pantheonsite.io';
				break;
		}

		if (
			$_SERVER['HTTP_HOST'] !== $primary_domain ||
			! isset( $_SERVER['HTTP_USER_AGENT_HTTPS'] ) ||
			'ON' !== $_SERVER['HTTP_USER_AGENT_HTTPS']
		) {
			// Name transaction "redirect" in New Relic for improved reporting.
			if ( extension_loaded( 'newrelic' ) ) {
				newrelic_name_transaction( 'redirect' );
			}

			header( 'HTTP/1.0 301 Moved Permanently' );
			header( 'X-Redirect: primary-domain' );
			header( 'Location: https://' . $primary_domain . $_SERVER['REQUEST_URI'] );
			exit;
		}
	}