Canonical: Check first before attempting to include a 'path' value in the URL in `strip_fragment_from_url()`.

Props Mte90.
Fixes #40542.

Built from https://develop.svn.wordpress.org/trunk@41257


git-svn-id: http://core.svn.wordpress.org/trunk@41097 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/canonical.php

@@ -568,7 +568,11 @@ function strip_fragment_from_url( $url ) {
 		if ( ! empty( $parsed_url['port'] ) ) {
 			$url .= ':' . $parsed_url['port'];
 		}
-		$url .= $parsed_url['path'];
+
+		if ( ! empty( $parsed_url['path'] ) ) {
+			$url .= $parsed_url['path'];
+		}
+
 		if ( ! empty( $parsed_url['query'] ) ) {
 			$url .= '?' . $parsed_url['query'];
 		}

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41256';
+$wp_version = '4.9-alpha-41257';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.