[wp-trac] [WordPress Trac] #52536: Add "X-Robots-Tag: noindex" to feeds by default

[WordPress Trac]

#52536: Add "X-Robots-Tag: noindex" to feeds by default
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 Reporter:  pikamander2  |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Feeds        |     Version:
 Severity:  major        |  Resolution:
 Keywords:               |     Focuses:
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Comment (by peterwilsoncc):

 IN [attachment:"52536-poc.diff"] I've created a very rough POC that sets
 the `X-Robots-Tag` header according to the values in the default meta tag.

 By default this adds the noindex header to search feeds via the existing
 `wp_robots_noindex_search` function included on the `wp_robots` filter.

 On the downside, the HTTP headers are output much earlier than the meta
 tag so there is some risk of contradictory settings between the HTTP
 header and meta tag if a plugin alters the value after the HTTP headers
 are sent.

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Ticket URL: <https://core.trac.wordpress.org/ticket/52536#comment:8>
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