Feed and OpenSearch MIME Types

If you are generating your own Atom feeds or OpenSearch documents for use with collection fields, then you must ensure that they are served with the correct MIME types. These are:

• application/atom+xml for an Atom feed.

• application/opensearchdescription+xml for an OpenSearch document.

If a feed or OpenSearch document is served with the wrong MIME type then when any content item containing a collection field that references it is opened, CUE logs an exception and the field will not work.