Theme Customizer: Use a internal global _wpCustomizeSettings object for wp.customize.settings to prevent script race conditions in IE (which blocked interaction with the preview). see #20582, #19910.

git-svn-id: https://develop.svn.wordpress.org/trunk@20737 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/class-wp-customize.php

@@ -209,12 +209,7 @@ final class WP_Customize {
 
 		?>
 		<script type="text/javascript">
-			(function() {
+			var _wpCustomizeSettings = <?php echo json_encode( $settings ); ?>;
-				if ( typeof wp === 'undefined' || ! wp.customize )
-					return;
-
-				wp.customize.settings = <?php echo json_encode( $settings ); ?>;
-			})();
 		</script>
 		<?php
 	}

wp-includes/customize-controls.php

@@ -115,12 +115,7 @@ do_action( 'customize_controls_print_scripts' );
 
 	?>
 	<script type="text/javascript">
-		(function() {
+		var _wpCustomizeSettings = <?php echo json_encode( $settings ); ?>;
-			if ( typeof wp === 'undefined' || ! wp.customize )
-				return;
-
-			wp.customize.settings = <?php echo json_encode( $settings ); ?>;
-		})();
 	</script>
 </body>
 </html>

wp-includes/js/customize-controls.dev.js

@@ -366,6 +366,7 @@
 	};
 
 	$( function() {
+		api.settings = window._wpCustomizeSettings;
 		if ( ! api.settings )
 			return;
 

wp-includes/js/customize-preview.dev.js

@@ -31,6 +31,7 @@
 	});
 
 	$( function() {
+		api.settings = window._wpCustomizeSettings;
 		if ( ! api.settings )
 			return;