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Cron: Prevent sending headers when using ALTERNATE_WP_CRON

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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.



git-svn-id: https://develop.svn.wordpress.org/trunk@46458 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Aaron Jorbin 2019-10-10 22:50:05 +00:00
parent 7a682e690e
commit 466937669a
1 changed files with 5 additions and 2 deletions
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7
src/wp-cron.php
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@ -20,8 +20,11 @@ ignore_user_abort( true );
/* Don't make the request block till we finish, if possible. */ /* Don't make the request block till we finish, if possible. */
if ( function_exists( 'fastcgi_finish_request' ) && version_compare( phpversion(), '7.0.16', '>=' ) ) { if ( function_exists( 'fastcgi_finish_request' ) && version_compare( phpversion(), '7.0.16', '>=' ) ) {
header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' ); if ( ! headers_sent() ) {
header( 'Cache-Control: no-cache, must-revalidate, max-age=0' ); header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' );
header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
}
fastcgi_finish_request(); fastcgi_finish_request();
} }