diff --git a/inc/tag_replacer.php b/inc/tag_replacer.php
index 48e8bd17..6e938688 100644
--- a/inc/tag_replacer.php
+++ b/inc/tag_replacer.php
@@ -451,6 +451,9 @@ public function filter_sizes_attr( $sizes, $size ) {
 	 */
 	public function filter_image_downsize( $image, $attachment_id, $size ) {
 
+		if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) {
+			return $image;
+		}
 		$image_url = wp_get_attachment_url( $attachment_id );
 		if ( Optml_Media_Offload::is_uploaded_image( $image_url ) ) {
 			return $image;