request not making it to pipes error handler (caught in express router)

When deliberately making invalid requests (POST to PUT only endpoint) I receive a full error stack dump on the client side, looking at the debug log, the flow never makes it to pipeworks (and the tidy json_error_handler).

My project is based off the express swagger-node skeleton but I'm trying to upgrade to swagger-express-mw 0.7.0.

Valid requests the express router seems to be passed through and pipes handles everything correctly.

DEBUG=* log on invalid request:

 express:router dispatching POST /postOnly +2s
 express:router query  : /postOnly +0ms
 express:router expressInit  : /postOnly +1ms
 express:router middleware  : /postOnly +0ms
 finalhandler default 405 +1ms
 Error: Path [/postOnly] defined in Swagger, but POST operation is not.
    at middleware 
    at Layer.handle [as handle_request] 
    at trim_prefix 
    at /lib/router/index.js:280:7
    at Function.process_params 
    at next 
    at expressInit 
    at Layer.handle [as handle_request] 
    at trim_prefix 
    at 
    at Function.process_params 
    at next 
    at query 
    at Layer.handle [as handle_request] 
    at trim_prefix 
    at 
    at Function.process_params 
    at next 
    at Function.handle 
    at EventEmitter.handle 
    at Server.app 
    at emitTwo (events.js:106:13)
    at Server.emit (events.js:191:7)
    at HTTPParser.parserOnIncoming [as onIncoming] (_http_server.js:546:12)
    at HTTPParser.parserOnHeadersComplete (_http_common.js:99:23)

My software versions: "dependencies": { "express": "^4.12.3", "swagger-express-mw": "^0.7.0" }

config file:

# swagger configuration file

# values in the swagger hash are system configuration for swagger-node
swagger:

  fittingsDirs: [ api/fittings ]
  defaultPipe: null
  swaggerControllerPipe: swagger_controllers  # defines the standard processing pipe for controllers

  # values defined in the bagpipes key are the bagpipes pipes and fittings definitions
  # (see https://github.com/apigee-127/bagpipes)
  bagpipes:

    _router:
      name: swagger_router
      mockMode: true
      mockControllersDirs: [ api/mocks ]
      controllersDirs: [ api/controllers ]

    _swagger_validate:
      name: swagger_validator
      validateResponse: false

    _json_error_handler:                       # <= Add this definition
      name: json_error_handler
      handle500Errors: true

    # pipe for all swagger-node controllers
    swagger_controllers:
      - onError: _json_error_handler
      - cors
      - swagger_params_parser
      - swagger_security
      - _swagger_validate
      - express_compatibility
      - _router

    # pipe to serve swagger (endpoint is in swagger.yaml)
    swagger_raw:
      name: swagger_raw

# any other values in this file are just loaded into the config for application access...

Thanks for any help!

apigee-127 / swagger-node-runner

request not making it to pipes error handler (caught in express router) #66