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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 4084d78f49..9d450beae5 100644
--- a/actionpack/lib/action_dispatch/http/parameters.rb
+++ b/actionpack/lib/action_dispatch/http/parameters.rb
@@ -77,7 +77,7 @@ module ActionDispatch
def format_from_path_extension
path = @env['action_dispatch.original_path'] || @env['PATH_INFO']
- if match = path && path.match(/\.(\w+)$/)
+ if match = path && path.match(/\.(\w+)\z/)
match.captures.first
end
end