Personal note: On Android, any invalid proxy configuration in http_proxy settings string would be sliently ignored and thus would meant direct connection 🙃 If you want to take this proxy string across FFI, either make sure the native code side throws away invaild proxy strings, or just don't try to feed this proxy string if the system told us we don't have proxy Background: element-hq/element-x-android#4744 No more dangling :0 proxy breaks EXA ~