Boost: Fix switching static front page to posts page during c.css generation (Automattic#37027)

* Fix switching static front page to posts page during c.css generation

* Fix returning home page for posts page in source providers list

* add changelog

* Update changelog

* Update changelog filename

Author: dilirity

projects/plugins/boost/app/class-jetpack-boost.php

@@ -117,8 +117,6 @@ public function __construct() {
 
 		add_action( 'jetpack_boost_critical_css_environment_changed', array( $this, 'handle_environment_change' ), 10, 2 );
 
-		add_filter( 'query_vars', array( self::class, 'whitelist_query_args' ) );
-
 		// Fired when plugin ready.
 		do_action( 'jetpack_boost_loaded', $this );
 

projects/plugins/boost/app/lib/critical-css/source-providers/providers/WP_Core_Provider.php

@@ -39,7 +39,7 @@ public static function get_critical_source_urls( $context_posts = array() ) {
 
 		$posts_page = get_option( 'page_for_posts' );
 		if ( ! empty( $posts_page ) ) {
-			$permalink = get_permalink( $front_page );
+			$permalink = get_permalink( $posts_page );
 			if ( ! empty( $permalink ) ) {
 				$urls['posts_page'] = array( $permalink );
 			}

projects/plugins/boost/changelog/fix-query-var-switching-front-page

@@ -0,0 +1,5 @@
+Significance: patch
+Type: fixed
+Comment: Fixed switching content of home page during critical css generation. Fixed returning home url instead of posts url for posts page source provider.
+
+