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WebP (EPUB 3.3 core media type) not rendered on device — webp plugin missing from qtimageformats; cover blank on Forma (latest firmware)

Status: Open.

#74 In kobolabs/epub-spec;

· bariskayadelen opened on Jun 25, 2026

TOC Navigation no longer works on Kobo Libra Colour 4.44.23552

Status: Open.

#73 In kobolabs/epub-spec;

· DanteDT opened on Dec 4, 2025

Unreliable statements in the KOBO epub guidelines

Status: Open.

#70 In kobolabs/epub-spec;

· mramosch opened on Feb 8, 2025

Footnotes bugs 100% reproducible

Status: Open.

#69 In kobolabs/epub-spec;

· mramosch opened on Jan 29, 2025

‘ e-Ink does partially support Javascript… ‘

Status: Open.

#68 In kobolabs/epub-spec;

· mramosch opened on Jan 28, 2025

http://validator.idpf.org/ unaccessible

Status: Open.

#66 In kobolabs/epub-spec;

· oldman63 opened on Jun 9, 2024

Cannot get popup footnotes/endnotes working!

Status: Open.

#64 In kobolabs/epub-spec;

· jeff47 opened on Jul 30, 2023

Ability to override default link styling?

Status: Open.

#63 In kobolabs/epub-spec;

· karlb opened on Nov 13, 2022

Footnote Popup: Allow at Least Minimal Formatting

Status: Open.

#61 In kobolabs/epub-spec;

· ourichermath opened on Oct 5, 2022

"text-decoration: line-through" Line Thickness is Too Thin and Can't be Changed

Status: Open.

#60 In kobolabs/epub-spec;

· ourichermath opened on Aug 12, 2022

Support for Footnotes Using aside, epub:type="noteref" and epub:type="footnote"?

Status: Open.

#59 In kobolabs/epub-spec;

· ourichermath opened on Aug 4, 2022

Fixed layout epub with InDesign and Sigil workflow (keeping real text on the epub)

Status: Open.

#58 In kobolabs/epub-spec;

· theoguedes opened on Nov 18, 2021