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fix(feed): escape bare ampersands in entry HTML attribute URLs

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linkedom escapes & in text nodes but not in attribute values, so URLs
with query strings (?a=1&b=2) serialized with bare ampersands. Valid XML
inside the feed CDATA, but the W3C validator parses the embedded HTML and
warns "Named entity expected. Got none." on <description>/<content:encoded>
(RSS) and <summary>/<content> (Atom). Escape every & not already starting
a valid entity; covers all three formats via processEmailContent.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Julien Herr
2026-05-25 22:49:57 +02:00
parent 5f13126b35
commit 7297e06b94
3 changed files with 36 additions and 1 deletions
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CHANGELOG.md
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@@ -22,6 +22,10 @@ verbatim as the GitHub Release notes — so what you write here is what ships.
cached negatively for 6 hours instead of a full week, so a domain whose icon
was momentarily unavailable (e.g. not yet indexed upstream) is retried on the
next email instead of staying blank for days.
- Feed entry HTML now escapes bare ampersands in attribute URLs (e.g. query
strings like `?a=1&b=2`), clearing the W3C feed validator's "Named entity
expected. Got none." warning and improving interoperability with stricter
feed readers.
## [0.3.1] - 2026-05-25