Ignore empty query strings

calparrot/proxy.py

@@ -154,7 +154,7 @@ class ProxyHandler(RequestHandler):
 
     async def get(self, path):
         req_path = path
-        if self.request.query is not None:
+        if self.request.query:
             req_path += '?' + self._normalize_query(self.request.query)
 
         response = await self._get_with_cache(req_path)