zag2art

/var/canvas/lib/canvas/security/key_storage.rb:70:in `block in public_keyset'                                                              +
 /var/canvas/lib/canvas/security/key_storage.rb:69:in `map'                                                                                 +
 /var/canvas/lib/canvas/security/key_storage.rb:69:in `public_keyset'                                                                       +
 /var/canvas/app/controllers/lti/ims/security_controller.rb:51:in `jwks'                                                                    +
 /var/canvas/vendor/bundle/ruby/2.6.0/gems/actionpack-5.2.4.4/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'       +
 /var/canvas/vendor/bundle/ruby/2.6.0/gems/actionpack-5.2.4.4/lib/abstract_controller/base.rb:194:in `process_action'                       +
 /var/canvas/vendor/bundle/ruby/2.6.0/gems/actionpack-5.2.4.4/lib/action_controller/metal/rendering.rb:30:in `process_action'               +
 /var/canvas/vendor/bundle/ruby