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22 lines
1.4 KiB
Markdown
22 lines
1.4 KiB
Markdown
---
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title: "EPUB and Web technology"
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date: 2022-12-11T14:29:06-08:00
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replyURI: "https://fosstodon.org/@RL_Dane/109497272141002333"
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replyTitle: "A full webkit process and actual JS running just to view an epub"
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replyType: "SocialMediaPosting"
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replyAuthor: "R. L. Dane"
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replyAuthorURI: "https://fosstodon.org/@RL_Dane"
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syndicatedCopies:
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- title: 'The Fediverse'
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url: 'https://pleroma.envs.net/notice/AQVk1LyhgR0eoo4MWe'
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---
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> The fact that I have to have a full WebKit process and actual JS running just to view an EPUB is really infuriating.
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>
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> Can't anything just be a ruddy DOCUMENT format anymore‽
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To be fair: EPUB is actually a good use-case for semantic XHTML5, WAI-ARIA, DPUB-ARIA, MathML, and RDF serializations. This does call for some sort of web engine, but not necessarily a complete browser engine capable of running web apps.
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Most of the rest of the Web platform beyond semantic markup and simple stylesheets should probably be stripped away from a typical EPUB reader. Unfortunately, few "slim" engines actually support enough of the features I described. Engines like Ultralight (proprietary) and [litehtml](https://github.com/litehtml/litehtml) come to mind, but I don't know how good the latter's accessibility support is.
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I very much agree that JavaScript support in EPUB was a mistake; fortunately, it's seldom necessary. Signed JIT-less JavaScript as part of the e-reader program should be okay, as the user consented to run it.
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