diff --git a/changelogs/client_server/newsfragments/1365.feature b/changelogs/client_server/newsfragments/1365.feature
new file mode 100644
index 00000000..d2864e96
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+++ b/changelogs/client_server/newsfragments/1365.feature
@@ -0,0 +1 @@
+Document the CORS/preflight headers
\ No newline at end of file