fix: remove chunked database download header

datasette/views/database.py

@@ -444,7 +444,6 @@ async def database_download(request, datasette):
         if_none_match = request.headers.get("if-none-match")
         if if_none_match and if_none_match == etag:
             return Response("", status=304)
-    headers["Transfer-Encoding"] = "chunked"
     return AsgiFileDownload(
         filepath,
         filename=os.path.basename(filepath),

tests/test_html.py

@@ -548,12 +548,12 @@ def test_database_download_for_immutable():
         content_length = download_response.headers["content-length"]
         assert content_length.isdigit()
         assert int(content_length) > 100
+        assert "transfer-encoding" not in download_response.headers
         assert "content-disposition" in download_response.headers
         assert (
             download_response.headers["content-disposition"]
             == 'attachment; filename="fixtures.db"'
         )
-        assert download_response.headers["transfer-encoding"] == "chunked"
         # ETag header should be present and match db.hash
         assert "etag" in download_response.headers
         etag = download_response.headers["etag"]