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[v12.0/forgejo] fix(ui): add missing lazy load attribute to images (#8282)

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**Backport:** https://codeberg.org/forgejo/forgejo/pulls/8246

closes #8076

Co-authored-by: Bente Groh <mail@bentegroh.de>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8282
Reviewed-by: Beowulf <beowulf@beocode.eu>
Co-authored-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
Co-committed-by: forgejo-backport-action <forgejo-backport-action@noreply.codeberg.org>
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forgejo-backport-action 2025-06-25 20:42:35 +02:00 • committed by Beowulf
commit aa648d74ea
10 changed files with 67 additions and 59 deletions
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3
modules/markup/sanitizer.go
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@ -108,6 +108,9 @@ func createDefaultPolicy() *bluemonday.Policy {
// Allow classes for emojis
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^emoji$`)).OnElements("img")
// Allow attributes for images
policy.AllowAttrs("loading").Matching(regexp.MustCompile(`^lazy$`)).OnElements("img")
// Allow icons, emojis, chroma syntax and keyword markup on span
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^((icon(\s+[\p{L}\p{N}_-]+)+)|(emoji)|(language-math display)|(language-math inline))$|^([a-z][a-z0-9]{0,2})$|^` + keywordClass + `$`)).OnElements("span")
policy.AllowAttrs("data-alias").Matching(regexp.MustCompile(`^[a-zA-Z0-9-_+]+$`)).OnElements("span")