NULL get_queried_object on /feed URL

[krbvroc1]

I have been trying to track down numerous PHP notices littering my log files. I have traced it to when someone fetches a /feed version of a page/post. When this happens the various conditionals such as is_singular(), is_single(), is_page(), etc call

$post_obj = $this->get_queried_object();

which returns NULL. Then the WP routines try to reference the post_type which throws a notice such as:
PHP Notice: Trying to get property of non-object in /opt/www/wp-includes/class-wp-query.php on line 3895

Woocommerce for example uses template_redirect and checks is_page() or is_singular() which throws a bunch of notices.

WP_Query does have an is_feed variable that is set...perhaps it could use that as a check before it tries to access a null object.

[munyagu]

Add check return value from get_queried_object()

[munyagu]

I added a check to the following methods.

WP_Query::is_attachment()
WP_Query::is_author()
WP_Query::is_category()
WP_Query::is_page()
WP_Query::is_single()
WP_Query::is_singular()
WP_Query::is_tag()
WP_Query::is_tax()

[SergeyBiryukov]

Hi there, welcome to WordPress Trac!

Thanks for the report, we're already tracking this issue in #29660.