dev settings: add 127.0.0.1 as allowed host, too

src/hub/settings/dev.py

@@ -29,7 +29,7 @@ if dev_env('SERVE_DEBUGPY'):
 os.environ.setdefault('DJANGO_DEBUG', 'I_KNOW_WHAT_I_AM_DOING')
 
 # set default ALLOWED_HOSTS
-os.environ.setdefault('ALLOWED_HOSTS', 'localhost')
+os.environ.setdefault('ALLOWED_HOSTS', 'localhost,127.0.0.1')
 
 # set PLAINUI link options
 os.environ.setdefault('PLAINUI_BASE_URL', 'http://127.0.0.1:8000')