Prevent sending a 404 status when returning the response for the customize preview, since it causes the jQuery Ajax to fail. Send 200 instead.
props westonruter. fixes #27992. Built from https://develop.svn.wordpress.org/trunk@28970 git-svn-id: http://core.svn.wordpress.org/trunk@28759 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -406,6 +406,7 @@ final class WP_Customize_Manager {
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$this->prepare_controls();
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wp_enqueue_script( 'customize-preview' );
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add_action( 'wp', array( $this, 'customize_preview_override_404_status' ) );
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add_action( 'wp_head', array( $this, 'customize_preview_base' ) );
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add_action( 'wp_head', array( $this, 'customize_preview_html5' ) );
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add_action( 'wp_footer', array( $this, 'customize_preview_settings' ), 20 );
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@ -427,6 +428,18 @@ final class WP_Customize_Manager {
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do_action( 'customize_preview_init', $this );
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}
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/**
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* Prevent sending a 404 status when returning the response for the customize
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* preview, since it causes the jQuery Ajax to fail. Send 200 instead.
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*
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* @since 4.0.0
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*/
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public function customize_preview_override_404_status() {
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if ( is_404() ) {
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status_header( 200 );
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}
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}
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/**
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* Print base element for preview frame.
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*
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