Index: wp-cache-phase2.php
===================================================================
--- wp-cache-phase2.php	(revision 7179)
+++ wp-cache-phase2.php	(working copy)
@@ -217,7 +217,7 @@
 			array_push($meta_object->headers, "Content-Type: $value");
 		}
 	}
-	ob_end_clean();
+	ob_end_flush();
 	if ($new_cache) {
 		$serial = serialize($meta_object);
 		wp_cache_writers_entry();