diff --git a/packages/edge_runtime/lib/src/headers.dart b/packages/edge_runtime/lib/src/headers.dart
index 6a6e80f..34d0809 100644
--- a/packages/edge_runtime/lib/src/headers.dart
+++ b/packages/edge_runtime/lib/src/headers.dart
@@ -15,6 +15,8 @@ class Headers {
   void append(String name, String value) => _delegate.append(name, value);
   void delete(String name) => _delegate.delete(name);
   String? get(String name) => _delegate.get(name);
+  void set(String name, String value) => _delegate.set(name, value);
+  List<String> getSetCookie() => _delegate.getSetCookie();
 
   operator []=(String name, String value) {
     _delegate.set(name, value);
diff --git a/packages/edge_runtime/lib/src/interop/headers.dart b/packages/edge_runtime/lib/src/interop/headers.dart
index a872730..79d5ac5 100644
--- a/packages/edge_runtime/lib/src/interop/headers.dart
+++ b/packages/edge_runtime/lib/src/interop/headers.dart
@@ -30,6 +30,10 @@ extension HeadersProps on Headers {
     js_utils.callMethod(this, 'set', [name, value]);
   }
 
+  List<String> getSetCookie() {
+    return js_utils.callMethod(this, 'getSetCookie', []);
+  }
+
   Iterable<List<String>> get entries {
     final iterator = js_utils.callMethod(this, 'entries', []);
     return i.fromJSIterator(iterator).map((e) => e.cast<String>());