Questions:

Does it make sense that these bookmarks save a text part?  Surely makes
sense for some cases, e.g. locally saved documentation in html, but
makes not much sense for e.g. newspaper sites.

Do I need to declare `bookmark-make-record-function' as special when
setting with `setq-local' (that's what doc-view does)?  If the answer is
"yes", do I need to do it at top-level?

Do I have to add a NEWS entry?

TIA,

Michael.