[OpenStreetMap] #4670: RSS auto discovery link missing from diary entry lists

[OpenStreetMap]

#4670: RSS auto discovery link missing from diary entry lists
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  Reporter:  Zverik   |      Owner:  rails-dev@…
      Type:  defect   |     Status:  reopened
  Priority:  minor    |  Milestone:
 Component:  website  |    Version:
Resolution:           |   Keywords:  rss,diary
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Comment (by TomH):

 No the point is that if the page is cached (this is a server side cache)
 then the view is never run and hence the content_for block doesn't stash
 the content so when :head is rendered the auto_discovery_link_tag is not
 there.

 Basically the cache only stores the actual content of the page and not the
 side effects like content_for blocks.

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Ticket URL: <https://trac.openstreetmap.org/ticket/4670#comment:8>
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