module-federation
diff --git a/‎.changeset/ai-eager-mouse.md
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-8
diff --git a/‎.changeset/ai-happy-lion.md
+9 b/‎.changeset/ai-happy-lion.md
+9
@@ -0,0 +1,9 @@
+---
+"@module-federation/sdk": patch
+---
+
+Fix issue where `createLink` incorrectly created duplicate links when existing links lacked a `rel` attribute.
+
+- Added a test case to verify `createLink` does not duplicate links when existing ones have no `rel`.
+- Modified `createLink` logic to treat `null` and `undefined` as equivalent for `rel` attribute.
+- Ensures consistent behavior even when `rel` attribute is missing.