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authorPatrick Cloke <clokep@users.noreply.github.com>2021-03-09 07:41:32 -0500
committerGitHub <noreply@github.com>2021-03-09 07:41:32 -0500
commit7fdc6cefb3017f3c4bbe1d824e1de249ac29d219 (patch)
treeeb7529b1b438b4cbff3c5ca6d30391f1bfd10a49 /synapse/http/federation
parentHandle image transparency better when thumbnailing. (#9473) (diff)
downloadsynapse-7fdc6cefb3017f3c4bbe1d824e1de249ac29d219.tar.xz
Fix additional type hints. (#9543)
Type hint fixes due to Twisted 21.2.0 adding type hints.
Diffstat (limited to 'synapse/http/federation')
-rw-r--r--synapse/http/federation/well_known_resolver.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/http/federation/well_known_resolver.py b/synapse/http/federation/well_known_resolver.py
index 4def7d7633..ecd63e6596 100644
--- a/synapse/http/federation/well_known_resolver.py
+++ b/synapse/http/federation/well_known_resolver.py
@@ -322,7 +322,8 @@ def _cache_period_from_headers(
 
 def _parse_cache_control(headers: Headers) -> Dict[bytes, Optional[bytes]]:
     cache_controls = {}
-    for hdr in headers.getRawHeaders(b"cache-control", []):
+    cache_control_headers = headers.getRawHeaders(b"cache-control") or []
+    for hdr in cache_control_headers:
         for directive in hdr.split(b","):
             splits = [x.strip() for x in directive.split(b"=", 1)]
             k = splits[0].lower()