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Properties removed from the link vocabulary #1457
Description
As we found no evidence of xmp records being used, there was no case for keeping the xmp properties value as under-implemented, or even keeping it as deprecated (only the onix property is used). It should be safe to remove this from validation.
The acquire rel value was also removed from the vocabulary, but it should be left valid because it was defined in the Previews spec. I think we have some partial validation support for previews, but it's probably not worth the effort of making it valid only in those types of publications - just leave it as an acceptable rel value.
Activity
mattgarrish commentedon Dec 9, 2022
Note that if acquire remains valid, the test for it in the test suite should be untagged: https://github.com/w3c/epubcheck/blob/main/src/test/resources/epub3/D-vocabularies/metadata-link.feature#L18
This will no longer be part of the report.
Running a search on the epub3 feature folder the only test that needs updating to remove an xmp link is here: https://github.com/w3c/epubcheck/blob/main/src/test/resources/epub3/D-vocabularies/files/link-rel-record-properties-valid.opf#L10
That line can be removed without having to change anything else, as it has an onix link that remains valid.
feat: "xmp" is no longer a valid package link property
feat: "xmp" is no longer a valid package link property