fix aio-libs#4901

derlih · Oct 24, 2020 · 129df48 · 129df48
1 parent 460faa9
commit 129df48
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diff --git a/CHANGES/4901.bugfix b/CHANGES/4901.bugfix
@@ -0,0 +1 @@
+Server doesn't send Content-Length for 1xx or 204
diff --git a/aiohttp/web_response.py b/aiohttp/web_response.py
@@ -426,6 +426,10 @@ async def _prepare_headers(self) -> None:
                         del headers[hdrs.CONTENT_LENGTH]
                 else:
                     keep_alive = False
+            # HTTP 1.1: https://tools.ietf.org/html/rfc7230#section-3.3.2
+            # HTTP 1.0: https://tools.ietf.org/html/rfc1945#section-10.4
+            elif version >= HttpVersion11 and self.status in (100, 101, 102, 103, 204):
+                del headers[hdrs.CONTENT_LENGTH]
 
         headers.setdefault(hdrs.CONTENT_TYPE, "application/octet-stream")
         headers.setdefault(hdrs.DATE, rfc822_formatted_time())
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Server doesn't send Content-Length for 1xx or 204