Ticket #18505: 18505.2.patch

src/wp-includes/class-wp.php

@@ -582 +582 @@
                         }
 
                         // Don't 404 for these queries either.
-                        if ( is_home() || is_search() ) {
+                        if ( is_home() || is_search() || is_feed() ) {
                                 status_header( 200 );
                                 return;
                         }