Do not use canonicaljson to magically handle decoding bytes from JSON. (#7802)

1 files changed, 2 insertions, 4 deletions

diff --git a/synapse/api/errors.py b/synapse/api/errors.py

index 5305038c21..d5d4522336 100644
--- a/synapse/api/errors.py
+++ b/synapse/api/errors.py
@@ -15,13 +15,11 @@
 # limitations under the License.
 
 """Contains exceptions and error codes."""
-
+import json
 import logging
 from http import HTTPStatus
 from typing import Dict, List
 
-from canonicaljson import json
-
 from twisted.web import http
 
 logger = logging.getLogger(__name__)
@@ -573,7 +571,7 @@ class HttpResponseException(CodeMessageException):
         # try to parse the body as json, to get better errcode/msg, but
         # default to M_UNKNOWN with the HTTP status as the error text
         try:
-            j = json.loads(self.response)
+            j = json.loads(self.response.decode("utf-8"))
         except ValueError:
             j = {}