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-rw-r--r--doc/plugins/meta.mdwn13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/plugins/meta.mdwn b/doc/plugins/meta.mdwn
index c3f971d06..fa37a8246 100644
--- a/doc/plugins/meta.mdwn
+++ b/doc/plugins/meta.mdwn
@@ -123,6 +123,19 @@ Supported fields:
contents. In particular, it does not check the values against the set of
valid values but serves whatever you pass it.
+* uuid
+
+ Specifies a globally unique ID for a page. This ID will be used,
+ rather than the page url, in RSS and Atom feeds.
+
+ The uuid can either be a literal uuid (ie,
+ "ec248d04-f347-4eb8-92b6-671b15d36980"), or it can be an alternative URl
+ for the page.
+
+ This is mostly useful when a page's feed has moved, to keep the IDs for
+ pages unchanged and
+ [[avoid_flooding_aggregators|howto_avoid_flooding_aggregators]].
+
If the field is not one of the above predefined fields, the metadata will be
written to the generated html page as a <meta> header. However, this
won't be allowed if the [[htmlscrubber]] is enabled, since it can be used to