Cannot restrict search requests to page post type only

[bcworkz]

Requesting example.com/?s=foo&post_type=page returns all post types with "foo", not pages only. In parsing the query, the "post_type" query var gets dropped. Possibly because get_post_types( array(), 'objects' )['page']->publicly_queryable) returns false? This came up in the ​support forums.

Curiously, is_post_type_viewable('page') does return true as expected, even though it's supposedly relying upon the same publicly_queryable property.

Props @ksvgn2018 for bringing this to our attention.

[SergeyBiryukov]

Hi there, welcome back to WordPress Trac!

Thanks for the report, we're already tracking this issue in #18513.