My Jetpack: Prevent red bubble fatals when notification data is malformed (#45385)

Author: tbradsha

projects/packages/my-jetpack/changelog/fix-my-jetpack-red_bubble_fatals

@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+Prevent PHP errors when notification data is malformed.

projects/packages/my-jetpack/src/class-red-bubble-notifications.php

@@ -43,6 +43,9 @@ public static function register_rest_endpoints() {
 							'type' => 'string',
 						),
 						'sanitize_callback' => function ( $param ) {
+							if ( ! is_array( $param ) ) {
+								return array();
+							}
 							return array_map( 'sanitize_text_field', $param );
 						},
 					),