The question of whether a data URL is allowed in an a tag came up in the epubcheck tracker.
My understanding is this is disallowed because you can't navigate to non-spine resources.
I've also understood that embedding resources using data URLs is forbidden since they're also not listed in the manifest.
Assuming both these impressions are correct, we should probably explicitly note somewhere for extra clarity that the data: scheme cannot be used.
The question of whether a data URL is allowed in an
atag came up in the epubcheck tracker.My understanding is this is disallowed because you can't navigate to non-spine resources.
I've also understood that embedding resources using data URLs is forbidden since they're also not listed in the manifest.
Assuming both these impressions are correct, we should probably explicitly note somewhere for extra clarity that the data: scheme cannot be used.