Twenty Seventeen: Hide front section panels on page load of Customizer.

Props sstoqnov.

Fixes #38951.

Built from https://develop.svn.wordpress.org/trunk@39417


git-svn-id: http://core.svn.wordpress.org/trunk@39357 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentyseventeen/assets/js/customize-preview.js

@@ -8,6 +8,10 @@
 
 	// Collect information from customize-controls.js about which panels are opening.
 	wp.customize.bind( 'preview-ready', function() {
+		
+		// Initially hide the theme option placeholders on load
+		$( '.panel-placeholder' ).hide();
+		
 		wp.customize.preview.bind( 'section-highlight', function( data ) {
 
 			// Only on the front page.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-39415';
+$wp_version = '4.8-alpha-39417';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.