Fixed #18394 -- Added error for invalid JavaScriptCatalog packages

Thanks Tim Graham for the review.

1 files changed, 5 insertions, 0 deletions

diff --git a/django/views/i18n.py b/django/views/i18n.py
index 9edf83e857..9a16a78368 100644
--- a/django/views/i18n.py
+++ b/django/views/i18n.py
@@ -232,6 +232,11 @@ class JavaScriptCatalog(View):
     def get_paths(self, packages):
         allowable_packages = {app_config.name: app_config for app_config in apps.get_app_configs()}
         app_configs = [allowable_packages[p] for p in packages if p in allowable_packages]
+        if len(app_configs) < len(packages):
+            excluded = [p for p in packages if p not in allowable_packages]
+            raise ValueError(
+                'Invalid package(s) provided to JavaScriptCatalog: %s' % ','.join(excluded)
+            )
         # paths of requested packages
         return [os.path.join(app.path, 'locale') for app in app_configs]