Changeset 46458

Timestamp:

10/10/2019 10:50:05 PM (5 years ago)

Author:

jorbin

Message:

Cron: Prevent sending headers when using ALTERNATE_WP_CRON

ALTERNATE_WP_CRON echos things which causes a "Headers already sent" warning. This adds a check to ensure headers haven't already been sent.

Previously: [45560]

See: #45560. Fixes #48283.
Props dlh.

File:

• trunk/src/wp-cron.php (modified) (1 diff)

trunk/src/wp-cron.php

@@ -21 +21 @@
 /* Don't make the request block till we finish, if possible. */
 if ( function_exists( 'fastcgi_finish_request' ) && version_compare( phpversion(), '7.0.16', '>=' ) ) {
-    header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' );
-    header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
+    if ( ! headers_sent() ) {
+        header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' );
+        header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
+    }
+
     fastcgi_finish_request();
 }