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Canonical: Redirect paged requests for a static page assigned as the "Posts page".

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This avoids displaying duplicate content of the home page under different URLs with appended page numbers.

This change only affects the `<!--nextpage-->` pagination (`page` query variable) and not the regular multiple posts pagination (`paged` query variable).

The posts page does not support the `<!--nextpage-->` pagination, so requests for invalid page numbers should be redirected to the page permalink, applying the logic previously implemented for single posts or pages.

Follow-up to [34492], [47727].

Props jeremyfelt, sachit.tandukar, SergeyBiryukov.
Fixes #45337. See #40773, #28081, #11694.

git-svn-id: https://develop.svn.wordpress.org/trunk@47760 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Sergey Biryukov
2020-05-04 10:40:06 +00:00
parent 54c8470bd6
commit de14ea86bf
4 changed files with 41 additions and 20 deletions
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21
src/wp-includes/class-wp.php
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@@ -670,15 +670,15 @@ class WP {
} elseif ( $wp_query->posts ) {
$content_found = true;
$post = isset( $wp_query->post ) ? $wp_query->post : null;
// Only set X-Pingback for single posts that allow pings.
if ( is_singular() && $post && pings_open( $post ) && ! headers_sent() ) {
header( 'X-Pingback: ' . get_bloginfo( 'pingback_url', 'display' ) );
}
// Check for paged content that exceeds the max number of pages.
if ( is_singular() ) {
$post = isset( $wp_query->post ) ? $wp_query->post : null;
// Only set X-Pingback for single posts that allow pings.
if ( $post && pings_open( $post ) && ! headers_sent() ) {
header( 'X-Pingback: ' . get_bloginfo( 'pingback_url', 'display' ) );
}
// Check for paged content that exceeds the max number of pages.
$next = '<!--nextpage-->';
if ( $post && ! empty( $this->query_vars['page'] ) ) {
// Check if content is actually intended to be paged.
@@ -691,6 +691,11 @@ class WP {
}
}
// The posts page does not support the <!--nextpage--> pagination.
if ( $wp_query->is_posts_page && ! empty( $this->query_vars['page'] ) ) {
$content_found = false;
}
if ( $content_found ) {
$set_404 = false;
}