Commit 8f8343d [1] introduced a bug in the network logic of SearXNG where stream
requests (such as the one from the image proxy) would fail because a wrapper was
returned instead of a response object with the correct attribute.
This is just a quick in place fix I implemented to get it working again. It
would be better to implement corresponding logic to give stream requests the
correct object.
[1] https://github.com/searxng/searxng/pull/5204
57ef342ad1