Spotted in production. Two errors, but they come in pairs so they're clearly the same underlying bug:
```
Error reading SVG:Error domain 1 code 4 on line 1 column 1 of data: Start tag expected, '<' not found
Warning: parsing XML declaration: '?>' expected in Entity, line: 1 in /srv/mediawiki/php-1.30.0-wmf.16/includes/resourceloader/ResourceLoaderImage.php on line 302
```
ResourceLoader is making me think we've got a bad SVG that someone checked in somewhere? No stacktraces obvs cuz that would make life easy and shit.
**=> Logstash: <https://logstash.wikimedia.org/goto/d2698f1b9f332217fb797090b2bb5fa9>**
= Replication steps
Visit https://m.mediawiki.org/wiki/Extension:MobileFrontend
If the watch star is green click it, if you can't see the watchstar at all that's the problem.
After clicking it, notice it's absence.