diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index b594c1de77..08bae745bd 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -899,6 +899,8 @@ function do_enclose( $content, $post ) {
 	$post_links = apply_filters( 'enclosure_links', $post_links, $post->ID );
 
 	foreach ( (array) $post_links as $url ) {
+		$url = strip_fragment_from_url( $url );
+
 		if ( '' !== $url && ! $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE %s", $post->ID, $wpdb->esc_like( $url ) . '%' ) ) ) {
 
 			$headers = wp_get_http_headers( $url );