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-rw-r--r--actionpack/lib/action_dispatch/http/parameters.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/http/parameters.rb b/actionpack/lib/action_dispatch/http/parameters.rb
index c9df787351..cca7376ffa 100644
--- a/actionpack/lib/action_dispatch/http/parameters.rb
+++ b/actionpack/lib/action_dispatch/http/parameters.rb
@@ -43,7 +43,7 @@ module ActionDispatch
#
# {'action' => 'my_action', 'controller' => 'my_controller'}
def path_parameters
- get_header(PARAMETERS_KEY) || {}
+ get_header(PARAMETERS_KEY) || set_header(PARAMETERS_KEY, {})
end
private