`fetch('https://meta.miraheze.org/wiki/Miraheze?action=raw')` is blocked as expected, but appending `&ARBITRARY=.gif` makes it pass, for example:
```lang=javascript
fetch('https://meta.miraheze.org/wiki/Miraheze?action=raw&ARBITRARY=.gif')
.then((res) => res.text())
.then((data) => {
console.log(data)
})
```
success.
The related vcl code is: https://github.com/miraheze/puppet/blob/d79f1773/modules/varnish/templates/default.vcl#L406-L414