Karma unit test not works. Cannot read property 'unmask' of undefined

[alexey2baranov]

Hello! I just started new Autobahn project and get this error when start Karma.

My configuration is
OS: linux, Windows
nodejs 7.10.0, 8

I was opened same issues hire few month ago
vuejs-templates/webpack#728
karma-runner/karma#2593

and found that temporary workaround for this issue is to use --no-optional option
npm install --no-optional

Thanks!

karma start test/unit/karma.conf.js --single-run

09 08 2017 20:54:33.179:INFO [karma]: Karma v1.7.0 server started at http://0.0.0.0:9876/
09 08 2017 20:54:33.182:INFO [launcher]: Launching browser PhantomJS with unlimited concurrency
09 08 2017 20:54:33.196:INFO [launcher]: Starting browser PhantomJS
09 08 2017 20:54:36.098:ERROR [karma]: TypeError: Cannot read property 'unmask' of undefined
at Receiver.unmask (C:\unmask-research\node_modules\ws\lib\Receiver.js:306:46)
at Receiver.finish (C:\unmask-research\node_modules\ws\lib\Receiver.js:505:25)
at Receiver.expectHandler (C:\unmask-research\node_modules\ws\lib\Receiver.js:493:33)
at Receiver.add (C:\unmask-research\node_modules\ws\lib\Receiver.js:103:24)
at Socket.realHandler (C:\unmask-research\node_modules\ws\lib\WebSocket.js:825:20)
at emitOne (events.js:96:13)
at Socket.emit (events.js:191:7)
at readableAddChunk (_stream_readable.js:178:18)
at Socket.Readable.push (_stream_readable.js:136:10)
at TCP.onread (net.js:563:20)

[oberstet]

This is related to ws and node version I think (https://github.com/crossbario/autobahn-js#nodejs-development). I don't think Autobahn is wrong, or that we can do anything about these issues.