Set is_feed/feed so sitemap can be identified later in shutdown#7397
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…ions. Caching plugins will be able to query is_feed() and then check the query variable "feed" for the type of feed before creating a cache file of the sitemap. See Automattic/wp-super-cache#237 for further discussion.
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thanks @donnapep! |
eliorivero
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…ions. (#7397) Caching plugins will be able to query is_feed() and then check the query variable "feed" for the type of feed before creating a cache file of the sitemap. See Automattic/wp-super-cache#237 for further discussion.
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Cherry picked to 5.1 in 0c9e922 |
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Identify sitemaps as a "sitemap" feed for the purposes of caching or further analysis of an output buffer.
Caching plugins use output buffering to capture the page so even though the sitemap function dies immediately after the content is pushed out, the content is still captured. However, in my testing the Content-Type header was not captured (even when using
apache_get_header_listorheaders_list) in the output buffer callback. With this change the caching plugin can identify a sitemap and then use the right caching and/or content type. This is how WP Super Cache does that.See Automattic/wp-super-cache#237 for further
discussion.