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EPUB Validator error message: html extension should be xhtml
warrengeoffreyopheim
Tue, 20 Dec 2016 04:40:56 GMT
I get this message when running my CBB generated book through the EPUB Validator:
"XHTML Content Document file name 'cover.html' should have the extension '.xhtml'."
Where can I find info on how to correct this? Not finding much via Google.
Thank you!