diff --git a/.github/workflows/tests-js.yml b/.github/workflows/tests-js.yml
index 08909a9..9a8c88f 100644
--- a/.github/workflows/tests-js.yml
+++ b/.github/workflows/tests-js.yml
@@ -61,4 +61,13 @@ jobs:
       - name: Run frontend tests
         if: ${{ inputs.js-working-directory != '' }}
         working-directory: ${{ inputs.js-working-directory }}
-        run: npm test
+        env:
+          WORKING_DIR: ${{ inputs.js-working-directory }}
+          CI: true
+        run: |
+          if [ -f "${{ github.workspace }}/run-js-tests.sh" ]; then
+            ${{ github.workspace }}/run-js-tests.sh
+          else
+            echo "Warning: run-js-tests.sh not found, falling back to 'npm test'"
+            npm test
+          fi
diff --git a/README.md b/README.md
index 77d15b0..11c224c 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ This workflow will:
 3. Run the linter using the `./run-js-linter.sh` script in the repository.
 4. Install test dependencies if the `js-working-directory` input is set.
 5. Install frontend dependencies if the `translations-working-directory` input is set.
-6. Run the tests using the `./run-js-tests.sh` script in the repository.
+6. Run the tests using the `./run-js-tests.sh` script in the repository (falls back to `npm test` if not present).
 
 To use in your repository, add the following in your `.github/workflows/tests.yml` file under the `jobs` key: