Ticket #33214: 33214.diff

src/wp-includes/media.php

@@ -2762 +2762 @@
         }
 
         $attached_file = get_attached_file( $attachment->ID );
-        if ( file_exists( $attached_file ) ) {
+
+        $bytes = false;
+        if ( isset( $meta['filesize'] ) ) {
+                $bytes = $meta['filesize'];
+        } else if ( file_exists( $attached_file ) ) {
                 $bytes = filesize( $attached_file );
+        }
+
+        if ( ! empty( $bytes ) ) {
                 $response['filesizeInBytes'] = $bytes;
                 $response['filesizeHumanReadable'] = size_format( $bytes );
         }