ActionDispatch::Http::MimeNegotiation::InvalidType: "${#context[\"com.opensymphony.xwork2.dispatcher.httpservletresponse\"].addheader(\"keyvalue\"" is not a valid MIME type

[komagata]

View details in Rollbar: https://app.rollbar.com/a/komagata/fix/item/Bootcamp/1648

Mime::Type::InvalidMimeType: "%{(#test='multipart/form-data').(#dm=@ognl.ognlcontext@default_member_access).(#_memberaccess?(#_memberaccess=#dm):((#container=#context['com.opensymphony.xwork2.actioncontext.container']).(#ognlutil=#container.getinstance(@com.opensymphony.xwork2.ognl.ognlutil@class)).(#ognlutil.getexcludedpackagenames().clear()).(#ognlutil.getexcludedclasses().clear()).(#context.setmemberaccess(#dm)))).(#req=@org.apache.struts2.servletactioncontext@getrequest()).(#res=@org.apache.struts2.servletactioncontext@getresponse()).(#res.setcontenttype('text/html" is not a valid MIME type
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/mime_type.rb", line 238, in initialize
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/mime_type.rb", line 146, in new
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/mime_type.rb", line 146, in lookup
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/mime_negotiation.rb", line 25, in block in content_mime_type
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/request.rb", line 69, in fetch
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/request.rb", line 69, in fetch_header
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/mime_negotiation.rb", line 23, in content_mime_type
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_controller/metal/params_wrapper.rb", line 283, in _wrapper_enabled?
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_controller/metal/params_wrapper.rb", line 248, in process_action
  File "/usr/local/bundle/gems/activerecord-6.1.4.7/lib/active_record/railties/controller_runtime.rb", line 27, in process_action
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/abstract_controller/base.rb", line 165, in process
  File "/usr/local/bundle/gems/actionview-6.1.4.7/lib/action_view/rendering.rb", line 39, in process
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_controller/metal.rb", line 190, in dispatch
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_controller/metal.rb", line 254, in dispatch
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/routing/route_set.rb", line 50, in dispatch
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/routing/route_set.rb", line 33, in serve
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/journey/router.rb", line 50, in block in serve
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/journey/router.rb", line 32, in each
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/journey/router.rb", line 32, in serve
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/routing/route_set.rb", line 842, in call
  File "/usr/local/bundle/gems/omniauth-2.1.1/lib/omniauth/strategy.rb", line 202, in call!
  File "/usr/local/bundle/gems/omniauth-2.1.1/lib/omniauth/strategy.rb", line 169, in call
  File "/usr/local/bundle/gems/omniauth-2.1.1/lib/omniauth/strategy.rb", line 202, in call!
  File "/usr/local/bundle/gems/omniauth-2.1.1/lib/omniauth/strategy.rb", line 169, in call
  File "/usr/local/bundle/gems/omniauth-2.1.1/lib/omniauth/builder.rb", line 44, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/tempfile_reaper.rb", line 15, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/etag.rb", line 27, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/conditional_get.rb", line 27, in call
  File "/usr/local/bundle/gems/rack-user_agent-0.5.3/lib/rack/user_agent.rb", line 16, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/head.rb", line 12, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/permissions_policy.rb", line 22, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/http/content_security_policy.rb", line 18, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/session/abstract/id.rb", line 266, in context
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/session/abstract/id.rb", line 260, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/cookies.rb", line 689, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/callbacks.rb", line 27, in block in call
  File "/usr/local/bundle/gems/activesupport-6.1.4.7/lib/active_support/callbacks.rb", line 98, in run_callbacks
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/callbacks.rb", line 26, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/actionable_exceptions.rb", line 18, in call
  File "/usr/local/bundle/gems/rollbar-3.5.2/lib/rollbar/middleware/rails/rollbar.rb", line 25, in block in call
  File "/usr/local/bundle/gems/rollbar-3.5.2/lib/rollbar.rb", line 145, in scoped
  File "/usr/local/bundle/gems/rollbar-3.5.2/lib/rollbar/middleware/rails/rollbar.rb", line 22, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/debug_exceptions.rb", line 29, in call
  File "/usr/local/bundle/gems/rollbar-3.5.2/lib/rollbar/middleware/rails/show_exceptions.rb", line 27, in call_with_rollbar
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/show_exceptions.rb", line 33, in call
  File "/usr/local/bundle/gems/railties-6.1.4.7/lib/rails/rack/logger.rb", line 37, in call_app
  File "/usr/local/bundle/gems/railties-6.1.4.7/lib/rails/rack/logger.rb", line 26, in block in call
  File "/usr/local/bundle/gems/activesupport-6.1.4.7/lib/active_support/tagged_logging.rb", line 99, in block in tagged
  File "/usr/local/bundle/gems/activesupport-6.1.4.7/lib/active_support/tagged_logging.rb", line 37, in tagged
  File "/usr/local/bundle/gems/activesupport-6.1.4.7/lib/active_support/tagged_logging.rb", line 99, in tagged
  File "/usr/local/bundle/gems/railties-6.1.4.7/lib/rails/rack/logger.rb", line 26, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/remote_ip.rb", line 81, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/request_id.rb", line 26, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/method_override.rb", line 24, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/runtime.rb", line 22, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/executor.rb", line 14, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/static.rb", line 24, in call
  File "/usr/local/bundle/gems/rack-2.2.8.1/lib/rack/sendfile.rb", line 110, in call
  File "/usr/local/bundle/gems/actionpack-6.1.4.7/lib/action_dispatch/middleware/ssl.rb", line 77,