diff --git a/src/wp-admin/edit-form-blocks.php b/src/wp-admin/edit-form-blocks.php
index e6abe9998028f..65b5fc5634eb0 100644
--- a/src/wp-admin/edit-form-blocks.php
+++ b/src/wp-admin/edit-form-blocks.php
@@ -67,7 +67,7 @@ static function ( $classes ) {
 	array( '/wp/v2/settings', 'OPTIONS' ),
 	'/wp/v2/global-styles/themes/' . get_stylesheet(),
 	'/wp/v2/themes?context=edit&status=active',
-	'/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id() . '?context=edit',
+	'/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id(),
 );
 
 block_editor_rest_api_preload( $preload_paths, $block_editor_context );
@@ -123,14 +123,6 @@ static function ( $classes ) {
 	'before'
 );
 
-// Set Heartbeat interval to 10 seconds, used to refresh post locks.
-wp_add_inline_script(
-	'heartbeat',
-	'if ( window.wp && window.wp.heartbeat ) {
-		window.wp.heartbeat.interval( 10 );
-	}'
-);
-
 /*
  * Get all available templates for the post/page attributes meta-box.
  * The "Default template" array element should only be added if the array is
diff --git a/src/wp-includes/post.php b/src/wp-includes/post.php
index 725433939e060..b31af8860ca80 100644
--- a/src/wp-includes/post.php
+++ b/src/wp-includes/post.php
@@ -489,7 +489,7 @@ function create_initial_post_types() {
 			'revisions_rest_controller_class' => 'WP_REST_Global_Styles_Revisions_Controller',
 			'late_route_registration'         => true,
 			'capabilities'                    => array(
-				'read'                   => 'edit_theme_options',
+				'read'                   => 'edit_posts',
 				'create_posts'           => 'edit_theme_options',
 				'edit_posts'             => 'edit_theme_options',
 				'edit_published_posts'   => 'edit_theme_options',