feat: report empty title elements in XHTML Content Documents
#1135
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Empty or whitespace-only `title` elements are disallowed in HTML: https://html.spec.whatwg.org/#the-title-element Nu HTML Checker checks this with Java Code, so it’s not exposed in EPUBCheck (which only uses the Checkr’s schemas). This change re-implements the check in Schematron. Fixes #1093
mattgarrish
approved these changes
May 1, 2020
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Empty or whitespace-only
titleelements are disallowed in HTML:https://html.spec.whatwg.org/#the-title-element
Nu HTML Checker checks this with Java Code, so it’s not exposed in
EPUBCheck (which only uses the Checkr’s schemas).
This change re-implements the check in Schematron.
Fixes #1093