Media-Wiki's librsvg 2.40 nor SVG-checker do not render the following files containing feConvolveMatrix
Update:
According to @AntiCompositeNumber in T253947#6177374 it should be fixed in librsvg 2.41 (i.e. subtask of update librsvg T193352) .
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | TheDJ | T253947 SVG elements with feConvolveMatrix not rendered | |||
| Resolved | hnowlan | T193352 Update librsvg to ≥2.42.3 (2.44.10) | |||
| Resolved | hnowlan | T216815 Upgrade Thumbor to Buster | |||
| Invalid | None | T212941 Investigate systemd hardening to replace Firejail for Thumbor | |||
| Resolved | fgiunchedi | T212946 Stream Thumbor logs to logstash | |||
| Resolved | • Gilles | T187765 Replace the Nginx fronting Thumbor with Haproxy | |||
| Resolved | fgiunchedi | T204266 Backport prometheus haproxy exporter for Jessie | |||
| Resolved | jijiki | T220499 Export useful metrics from haproxy logs for Thumbor | |||
| Resolved | jijiki | T221562 Build Thumbor packages for buster |
Hi @Tmv, thanks for taking the time to report this and welcome to Wikimedia Phabricator!
Link to original SVG image itself: https://upload.wikimedia.org/wikipedia/commons/1/1e/Wikivoyage_oversight_draft_4.svg
The PNG preview seems to be entirely transparent in all sizes.
Adding the Thumbor project tag as this is about thumbnails.
Cannot reproduce locally when running rsvg-convert -w 512 -f png -u -o Wikivoyage_oversight_draft_4.png Wikivoyage_oversight_draft_4.svg with librsvg2-2.48.4-1.fc32.x86_64 but that librsvg version is way newer than on Wikimedia servers.
OK. So I expect that the problem will be resolved on the next update of librsvg. Thanks!
This looks like a bug that was fixed in librsvg 2.41.1:
- The feConvolveMatrix filter primitive wasn't being rendered at all; now it works.
Confirming that the file renders as expected in rsvg-convert version 2.44.10 (buster) and later. 2.41 is a post-Rust version, which means that this bug won't be fixed until we upgrade Thumbor to Debian Buster.