HTTP API: Add fragment support to `WP_Http::make_absolute_url()`.

Modifies `WP_Http::make_absolute_url()` to prevent it from dropping URL fragments, this in turn fixes the same issue for `links_add_base_url()`.

Props costdev, sergeybiryukov, dshanske, schlessera, jrf, desrosj, dd32.
Fixes #56231.


Built from https://develop.svn.wordpress.org/trunk@55370


git-svn-id: http://core.svn.wordpress.org/trunk@54903 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-http.php

@@ -1013,6 +1013,11 @@ class WP_Http {
 			$path .= '?' . $relative_url_parts['query'];
 		}
 
+		// Add the fragment.
+		if ( ! empty( $relative_url_parts['fragment'] ) ) {
+			$path .= '#' . $relative_url_parts['fragment'];
+		}
+
 		return $absolute_path . '/' . ltrim( $path, '/' );
 	}
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-beta2-55369';
+$wp_version = '6.2-beta2-55370';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.