1 files changed, 2 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb b/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
index 7489ce8028..1de3d14530 100644
--- a/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
+++ b/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
@@ -9,9 +9,11 @@ module ActionDispatch
       'ActionController::RoutingError'             => :not_found,
       'AbstractController::ActionNotFound'         => :not_found,
       'ActionController::MethodNotAllowed'         => :method_not_allowed,
+      'ActionController::UnknownHttpMethod'        => :method_not_allowed,
       'ActionController::NotImplemented'           => :not_implemented,
       'ActionController::UnknownFormat'            => :not_acceptable,
       'ActionController::InvalidAuthenticityToken' => :unprocessable_entity,
+      'ActionDispatch::ParamsParser::ParseError'   => :bad_request,
       'ActionController::BadRequest'               => :bad_request,
       'ActionController::ParameterMissing'         => :bad_request
     )