Index: wp-content/themes/twentyeleven/header.php
===================================================================
--- wp-content/themes/twentyeleven/header.php	(revision 44878)
+++ wp-content/themes/twentyeleven/header.php	(working copy)
@@ -73,7 +73,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="hfeed">
 	<header id="branding" role="banner">
 			<hgroup>
Index: wp-content/themes/twentyfifteen/header.php
===================================================================
--- wp-content/themes/twentyfifteen/header.php	(revision 44878)
+++ wp-content/themes/twentyfifteen/header.php	(working copy)
@@ -22,7 +22,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="hfeed site">
 	<a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'twentyfifteen' ); ?></a>
 
Index: wp-content/themes/twentyfourteen/header.php
===================================================================
--- wp-content/themes/twentyfourteen/header.php	(revision 44878)
+++ wp-content/themes/twentyfourteen/header.php	(working copy)
@@ -31,7 +31,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="hfeed site">
 	<?php if ( get_header_image() ) : ?>
 	<div id="site-header">
Index: wp-content/themes/twentyseventeen/header.php
===================================================================
--- wp-content/themes/twentyseventeen/header.php	(revision 44878)
+++ wp-content/themes/twentyseventeen/header.php	(working copy)
@@ -23,7 +23,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="site">
 	<a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'twentyseventeen' ); ?></a>
 
Index: wp-content/themes/twentysixteen/header.php
===================================================================
--- wp-content/themes/twentysixteen/header.php	(revision 44878)
+++ wp-content/themes/twentysixteen/header.php	(working copy)
@@ -22,7 +22,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="site">
 	<div class="site-inner">
 		<a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'twentysixteen' ); ?></a>
Index: wp-content/themes/twentyten/header.php
===================================================================
--- wp-content/themes/twentyten/header.php	(revision 44878)
+++ wp-content/themes/twentyten/header.php	(working copy)
@@ -60,7 +60,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="wrapper" class="hfeed">
 	<div id="header">
 		<div id="masthead">
Index: wp-content/themes/twentythirteen/header.php
===================================================================
--- wp-content/themes/twentythirteen/header.php	(revision 44878)
+++ wp-content/themes/twentythirteen/header.php	(working copy)
@@ -31,7 +31,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-	<?php wp_body_open(); ?>
+	<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 	<div id="page" class="hfeed site">
 		<header id="masthead" class="site-header" role="banner">
 			<a class="home-link" href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home">
Index: wp-content/themes/twentytwelve/header.php
===================================================================
--- wp-content/themes/twentytwelve/header.php	(revision 44878)
+++ wp-content/themes/twentytwelve/header.php	(working copy)
@@ -32,7 +32,7 @@
 </head>
 
 <body <?php body_class(); ?>>
-<?php wp_body_open(); ?>
+<?php if ( function_exists( 'wp_body_open' ) ) wp_body_open(); ?>
 <div id="page" class="hfeed site">
 	<header id="masthead" class="site-header" role="banner">
 		<hgroup>
