web: Fix sending errors for API requests

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/web/base.py b/src/web/base.py
index 26a4785fc018980a433aedf8391224e05d52b31e..d878f716f425c3042d6032a86fcf35b050b8741c 100644 (file)
--- a/src/web/base.py
+++ b/src/web/base.py
@@ -692,7 +692,7 @@ class APIMixin(KerberosAuthMixin):
                        "mem_level" : 9,
                }
 
-       def write_error(self, code, exc_info):
+       async def write_error(self, code, exc_info):
                """
                        Sends a JSON-encoded error message
                """