diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 913b3623..ab569a40 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -108,7 +108,7 @@ jobs:
           cd clients/apps/nodejs
           node test_basic_workflow2.js
           node test_atomic_swap.js
-          mocha ./test/tb04-simple-lightning-latch.mjs
+          mocha ./test/tb04-simple-lightning-latch.mjs --exit
       - name: Tear Down
         run: |
           docker-compose -f docker-compose-test.yml down
diff --git a/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs b/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
index dfacc715..870c0d70 100644
--- a/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
+++ b/clients/apps/nodejs/test/tb04-simple-lightning-latch.mjs
@@ -66,4 +66,106 @@ describe('TB04 - Lightning Latch', function() {
       expect(hash).to.equal(paymentHash.hash);
     })
   })
+
+  context('The sender tries to get the pre-image before the batch is unlocked', () => {
+    it('must fail', async () => {
+
+      const clientConfig = client_config.load();
+      let wallet_1_name = "w_ln_3";
+      let wallet_2_name = "w_ln_4";
+      let wallet_3_name = "w_ln_5";
+      let wallet_4_name = "w_ln_6";
+      await createWallet(clientConfig, wallet_1_name);
+      await createWallet(clientConfig, wallet_2_name);
+      await createWallet(clientConfig, wallet_3_name);
+      await createWallet(clientConfig, wallet_4_name);
+
+      const amount = 10000;
+      let token = undefined;
+      let tokenId = undefined;
+      let depositInfo = undefined;
+      let tokenList = undefined;
+      let usedToken = undefined;
+      let listCoins = undefined;
+
+      token = await mercurynodejslib.newToken(clientConfig, wallet_1_name);
+      tokenId = token.token_id;
+
+      depositInfo = await mercurynodejslib.getDepositBitcoinAddress(clientConfig, wallet_1_name, amount);
+
+      tokenList = await mercurynodejslib.getWalletTokens(clientConfig, wallet_1_name);
+      usedToken = tokenList.find(token => token.token_id === tokenId);
+
+      expect(usedToken.spent).is.true;
+
+      await depositCoin(clientConfig, wallet_1_name, amount, depositInfo);
+
+      listCoins = await mercurynodejslib.listStatecoins(clientConfig, wallet_1_name);
+
+      expect(listCoins.length).to.equal(1);
+
+      const coin1 = listCoins[0];
+
+      expect(coin1.status).to.equal(CoinStatus.CONFIRMED);
+
+      const paymentHash1 = await mercurynodejslib.paymentHash(clientConfig, wallet_1_name, coin1.statechain_id);
+
+      token = await mercurynodejslib.newToken(clientConfig, wallet_2_name);
+      tokenId = token.token_id;
+
+      depositInfo = await mercurynodejslib.getDepositBitcoinAddress(clientConfig, wallet_2_name, amount);
+
+      tokenList = await mercurynodejslib.getWalletTokens(clientConfig, wallet_2_name);
+      usedToken = tokenList.find(token => token.token_id === tokenId);
+
+      expect(usedToken.spent).is.true;
+
+      await depositCoin(clientConfig, wallet_2_name, amount, depositInfo);
+
+      listCoins = await mercurynodejslib.listStatecoins(clientConfig, wallet_2_name);
+
+      expect(listCoins.length).to.equal(1);
+
+      const coin2 = listCoins[0];
+
+      expect(coin2.status).to.equal(CoinStatus.CONFIRMED);
+
+      const paymentHash2 = await mercurynodejslib.paymentHash(clientConfig, wallet_2_name, coin2.statechain_id);
+
+      const transferAddress1 = await mercurynodejslib.newTransferAddress(clientConfig, wallet_1_name, null);
+      const transferAddress2 = await mercurynodejslib.newTransferAddress(clientConfig, wallet_2_name, null);
+
+      await mercurynodejslib.transferSend(clientConfig, wallet_1_name, coin1.statechain_id, transferAddress1.transfer_receive, paymentHash1.batchId);
+      await mercurynodejslib.transferSend(clientConfig, wallet_2_name, coin2.statechain_id, transferAddress2.transfer_receive, paymentHash2.batchId);
+
+      let transferReceiveResult = await mercurynodejslib.transferReceive(clientConfig, wallet_1_name);
+
+      expect(transferReceiveResult.isThereBatchLocked).is.true;
+      expect(transferReceiveResult.receivedStatechainIds).empty;
+
+      try {
+        const { preimage } = await mercurynodejslib.retrievePreImage(clientConfig, wallet_1_name, coin1.statechain_id, paymentHash1.batchId);
+      } catch (error) {
+          // Assert the captured error message
+          const expectedMessage = 'Request failed with status code 404';
+          expect(error.message).to.equal(expectedMessage);
+      }
+
+      await mercurynodejslib.confirmPendingInvoice(clientConfig, wallet_1_name, coin1.statechain_id);
+
+      transferReceiveResult = await mercurynodejslib.transferReceive(clientConfig, wallet_2_name);
+
+      expect(transferReceiveResult.isThereBatchLocked).is.false;
+      expect(transferReceiveResult.receivedStatechainIds).not.empty;
+
+      const { preimage } = await mercurynodejslib.retrievePreImage(clientConfig, wallet_1_name, coin1.statechain_id, paymentHash1.batchId);
+
+      const hash = crypto.createHash('sha256')
+          .update(Buffer.from(preimage, 'hex'))
+          .digest('hex')
+
+      expect(hash).to.equal(paymentHash.hash);
+    })
+  })
+
 })