Sets the HTTP headers to prevent caching for the different browsers.

Description

Different browsers support different nocache headers, so several headers must be sent so that all of them get the point that no caching should occur.

See also

• wp_get_nocache_headers()

More Information

Usage:

nocache_headers();

Source

function nocache_headers() {
	if ( headers_sent() ) {
		return;
	}

	$headers = wp_get_nocache_headers();

	unset( $headers['Last-Modified'] );

	header_remove( 'Last-Modified' );

	foreach ( $headers as $name => $field_value ) {
		header( "{$name}: {$field_value}" );
	}
}

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