diff --git a/src/emulator/functionsEmulator.ts b/src/emulator/functionsEmulator.ts
index fe31ec730e4..c911760eeb0 100644
--- a/src/emulator/functionsEmulator.ts
+++ b/src/emulator/functionsEmulator.ts
@@ -1083,7 +1083,10 @@ export class FunctionsEmulator implements EmulatorInstance {
     envs.FUNCTIONS_EMULATOR = "true";
     envs.TZ = "UTC"; // Fixes https://github.com/firebase/firebase-tools/issues/2253
     envs.FIREBASE_DEBUG_MODE = "true";
-    envs.FIREBASE_DEBUG_FEATURES = JSON.stringify({ skipTokenVerification: true });
+    envs.FIREBASE_DEBUG_FEATURES = JSON.stringify({
+      skipTokenVerification: true,
+      enableCors: true,
+    });
     // TODO(danielylee): Support timeouts. Temporarily dropping the feature until we finish refactoring.
 
     // Make firebase-admin point at the Firestore emulator