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KevinH · 03-09-2025, 11:53 AM

And data attributes are generally used to add non-visible to the reader additional information that is typically accessed via javascript. And javascript is only available in epub3 readers and is technically not allowed in epub2 epubs.

03-09-2025, 11:53 AM	#5
KevinH Sigil Developer Posts: 8,851 Karma: 6120478 Join Date: Nov 2009 Device: many	And data attributes are generally used to add non-visible to the reader additional information that is typically accessed via javascript. And javascript is only available in epub3 readers and is technically not allowed in epub2 epubs.