[wp-trac] [WordPress Trac] #31200: wp_redirect Missing Body - Causes Performance Issues

[WordPress Trac]

#31200: wp_redirect Missing Body - Causes Performance Issues
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 Reporter:  tripsis       |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  4.1
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  performance
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Comment (by Fab1en):

 Hi tripsis, and thanks for reporting this issue.

 If the issue only happens with Nginx + Varnish configuration, I think the
 correction should be specific to this configuration. There is perhaps an
 option in the varnish config to immediately return when a 301 redirect is
 detected ? Here is [http://syntaxheaven.com/configure-nginx-php-fpm-apc-
 varnish-for-wordpress/ a post] that describe the settings needed for NGinx
 + Varnish for WordPress.

 Correcting this behavior to comply to RFC specs might raise new issues.
 `wp_redirect` does not call `exit` after having set the redirection
 status, but rely on the caller to do it, so output some content could
 break some existing features. For example, when a plugin is activated, a
 `wp_redirect` to the failure page is called before activating the plugin,
 in the case where a fatal error happens during plugin activation. Redirect
 status is then changed back to success page if the plugin has been
 activated successfully.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31200#comment:1>
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