Add client ip to resolve_hash

app/routes.py

@@ -72,5 +72,5 @@ def resolve_hash(hash):
             db.session.commit()
 
     countermessage = "" if url.view_counter is None else f". View counter was lowered to {url.view_counter}"
-    app.logger.info(f"{request.environ['REMOTE_ADDR']} requested hash '{url.hash}' which resolved to '{url.url}'{countermessage}")
+    app.logger.info(f"{request.environ['HTTP_X_FORWARDED_FOR']} requested hash '{url.hash}' which resolved to '{url.url}'{countermessage}")
     return redirect(url.url, 301)