diff --git a/includes/Checkout.php b/includes/Checkout.php
index bb5e4f804..c88492b9a 100644
--- a/includes/Checkout.php
+++ b/includes/Checkout.php
@@ -186,37 +186,51 @@ public function load_checkout_permalink_template( $template ) {
);
}
}
-
+ $use_iframe = (bool) apply_filters( 'facebook_commerce_checkout_use_iframe', false );
$checkout_url = wc_get_checkout_url();
- echo '
-
-
-
-
- Checkout
-
-
-
-
-
- ';
+ if ( $use_iframe ) {
+ echo '
+
+
+
+
+ Checkout
+
+
+
+
+
+ ';
+
+ exit;
+ }
+ if ( ! headers_sent() ) {
+ wp_safe_redirect( esc_url_raw( $checkout_url ) );
+ exit;
+ }
+ // Fallback when headers already sent: force top-level navigation via JS
+ echo '' . esc_html__( 'Redirecting...', 'facebook-for-woocommerce' ) . '';
+ echo '';
+ echo '';
exit;
}