Good thought! This thread seemed to point in a similar direction:
I have a list of DRM-free epub files I bought from Humble Bundle that display fine in DEVONthink the 1st time I click on them, but are marked as “unauthorized” after that (exact message in French localization is: “Vous n’avez pas l’authorization d’accéder à la ressource requise)”. Those same files display fine in macOS books, Calibre, or any other ebook reader I tested.
Do note that I seem to have 2 problems:
In some cases, removing the URL in the file’s metadata was sufficient to make the fi…
– and I’ve just found this fantastic tip from @meowky about using Safari’s Web Inspector on epubs (as an alternative to Calibre’s rather crude validation):
The developer console (called Web Inspector in Safari) is a helpful tool which provides additional information to web pages and other HTML-derived document types, including (rendered) markdown. It can be helpful when you test your own CSS stylesheet for markdown notes, or troubleshoot an anomaly in a captured web archive, among many other things.
The developer console is normally built into a web browser. To benefit from the console, you must convert your .md document to HTML and open it in a b…
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