diff --git a/django/views/i18n.py b/django/views/i18n.py
index eda8422f69..c8cc5d043f 100644
--- a/django/views/i18n.py
+++ b/django/views/i18n.py
@@ -356,7 +356,8 @@ class JavaScriptCatalog(View):
         domain = kwargs.get('domain', self.domain)
         # If packages are not provided, default to all installed packages, as
         # DjangoTranslation without localedirs harvests them all.
-        packages = kwargs.get('packages', '').split('+') or self.packages
+        packages = kwargs.get('packages', '')
+        packages = packages.split('+') if packages else self.packages
         paths = self.get_paths(packages) if packages else None
         self.translation = DjangoTranslation(locale, domain=domain, localedirs=paths)
         context = self.get_context_data(**kwargs)
diff --git a/docs/releases/1.10.3.txt b/docs/releases/1.10.3.txt
index 13aadb30ee..a45124fb3a 100644
--- a/docs/releases/1.10.3.txt
+++ b/docs/releases/1.10.3.txt
@@ -17,3 +17,6 @@ Bugfixes
 
 * Added ``model_name`` to the ``allow_migrate()`` calls in ``makemigrations``
   (:ticket:`27200`).
+
+* Made the ``JavaScriptCatalog`` view respect the ``packages`` argument;
+  previously it was ignored (:ticket:`27374`).
diff --git a/tests/view_tests/tests/test_i18n.py b/tests/view_tests/tests/test_i18n.py
index ae56990fe6..4778b5dd37 100644
--- a/tests/view_tests/tests/test_i18n.py
+++ b/tests/view_tests/tests/test_i18n.py
@@ -384,9 +384,21 @@ class JsI18NTestsMultiPackage(SimpleTestCase):
         translations of multiple Python packages is requested. See #13388,
         #3594 and #13514 for more details.
         """
+        base_trans_string = 'il faut traduire cette cha\\u00eene de caract\\u00e8res de '
+        app1_trans_string = base_trans_string + 'app1'
+        app2_trans_string = base_trans_string + 'app2'
         with self.settings(LANGUAGE_CODE='en-us'), override('fr'):
             response = self.client.get('/jsi18n_multi_packages1/')
-            self.assertContains(response, 'il faut traduire cette cha\\u00eene de caract\\u00e8res de app1')
+            self.assertContains(response, app1_trans_string)
+            self.assertContains(response, app2_trans_string)
+
+            response = self.client.get('/jsi18n/app1/')
+            self.assertContains(response, app1_trans_string)
+            self.assertNotContains(response, app2_trans_string)
+
+            response = self.client.get('/jsi18n/app2/')
+            self.assertNotContains(response, app1_trans_string)
+            self.assertContains(response, app2_trans_string)
 
     @modify_settings(INSTALLED_APPS={'append': ['view_tests.app3', 'view_tests.app4']})
     def test_i18n_different_non_english_languages(self):