Customizer: Add title attributes to iframes.

props afercia.
fixes #31202.

git-svn-id: https://develop.svn.wordpress.org/trunk@31704 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/js/customize-loader.js

@@ -114,7 +114,7 @@ window.wp = window.wp || {};
 			// Dirty state of Customizer in iframe
 			this.saved = new api.Value( true );
 
-			this.iframe = $( '<iframe />', { src: src }).appendTo( this.element );
+			this.iframe = $( '<iframe />', { 'src': src, 'title': Loader.settings.l10n.mainIframeTitle } ).appendTo( this.element );
 			this.iframe.one( 'load', this.loaded );
 
 			// Create a postMessage connection with the iframe.

src/wp-includes/script-loader.php

@@ -389,13 +389,15 @@ function wp_default_scripts( &$scripts ) {
 	$scripts->add( 'customize-views',    "/wp-includes/js/customize-views.js",  array( 'jquery', 'underscore', 'imgareaselect', 'customize-models' ), false, 1 );
 	$scripts->add( 'customize-controls', "/wp-admin/js/customize-controls$suffix.js", array( 'customize-base' ), false, 1 );
 	did_action( 'init' ) && $scripts->localize( 'customize-controls', '_wpCustomizeControlsL10n', array(
-		'activate'  => __( 'Save & Activate' ),
-		'save'      => __( 'Save & Publish' ),
-		'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ),
-		'saved'     => __( 'Saved' ),
-		'cancel'    => __( 'Cancel' ),
-		'close'     => __( 'Close' ),
-		'cheatin'   => __( 'Cheatin’ uh?' ),
+		'activate'           => __( 'Save & Activate' ),
+		'save'               => __( 'Save & Publish' ),
+		'saveAlert'          => __( 'The changes you made will be lost if you navigate away from this page.' ),
+		'saved'              => __( 'Saved' ),
+		'cancel'             => __( 'Cancel' ),
+		'close'              => __( 'Close' ),
+		'cheatin'            => __( 'Cheatin’ uh?' ),
+		'previewIframeTitle' => __( 'Site Preview' ),
+		'loginIframeTitle'   => __( 'Session expired' ),
 
 		// Used for overriding the file types allowed in plupload.
 		'allowedFiles' => __( 'Allowed Files' ),

src/wp-includes/theme.php

@@ -1963,7 +1963,8 @@ function _wp_customize_loader_settings() {
 		'isCrossDomain' => $cross_domain,
 		'browser'       => $browser,
 		'l10n'          => array(
-			'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ),
+			'saveAlert'       => __( 'The changes you made will be lost if you navigate away from this page.' ),
+			'mainIframeTitle' => __( 'Customizer' ),
 		),
 	);