Conflict with Uglify JS?

[NiQ-B]

Getting the following error with broccoli-serviceworker on 0.0.8 & 0.0.9. Fell back to version 0.0.7 and all builds fine. Minimum research stated that Unexpected token: punc() was related to uglify.js

Fairly green to serviceworkers but got them working manually in ember but would really like to set it and for get it using a tool :-D. At least for the boilerplate.

I am using broccoli-static-compiler could be the conflict also.

Not sure where to start troubleshooting this error, here is the line in the service-worker.js

BroccoliServiceWorker.prototype.write = function(readTree, destDir) {

ember s --proxy http://0.0.0.0:3000 --environment=production
version: 2.3.0
Proxying to http://0.0.0.0:3000
Livereload server on http://localhost:49154
Serving on http://localhost:4200/
File: service-worker.js (43:13)
Unexpected token: punc ())
Error
at new JS_Parse_Error (:1508:18)
at js_error (:1516:11)
at croak (:2008:9)
at token_error (:2016:9)
at unexpected (:2022:9)
at expr_atom (:2517:13)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at expr_atom (:2507:26)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at expr_list (:2540:24)
at subscripts (:2674:30)
at subscripts (:2651:20)
at subscripts (:2671:20)
at subscripts (:2651:20)
at subscripts (:2671:20)
at subscripts (:2651:20)
at expr_atom (:2527:20)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at expr_list (:2540:24)
at subscripts (:2674:30)
at subscripts (:2651:20)
at expr_atom (:2527:20)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at simple_statement (:2222:55)
at eval (:2095:19)
at eval (:2055:24)
at block_ (:2335:20)
at eval (:2308:25)
at function_ (:2313:15)
at expr_atom (:2521:24)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at expr_list (:2540:24)
at subscripts (:2674:30)
at subscripts (:2651:20)
at expr_atom (:2527:20)
at maybe_unary (:2691:19)
at expr_ops (:2726:24)
at maybe_conditional (:2731:20)
at maybe_assign (:2755:20)
at expression (:2774:20)
at simple_statement (:2222:55)
at eval (:2095:19)
at eval (:2055:24)
at eval (:2802:23)
at Object.parse (:2812:7)
at /Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/broccoli-uglify-sourcemap/node_modules/uglify-js/tools/node.js:62:33
at Array.forEach (native)
at Object.exports.minify (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/broccoli-uglify-sourcemap/node_modules/uglify-js/tools/node.js:57:15)
at UglifyWriter.processFile (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/broccoli-uglify-sourcemap/index.js:118:27)
at /Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/broccoli-uglify-sourcemap/index.js:62:16
at Array.forEach (native)
at /Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/broccoli-uglify-sourcemap/index.js:52:21
at lib$rsvp$$internal$$tryCatch (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/rsvp/dist/rsvp.js:1036:16)
at lib$rsvp$$internal$$invokeCallback (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/rsvp/dist/rsvp.js:1048:17)
at lib$rsvp$$internal$$publish (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/rsvp/dist/rsvp.js:1019:11)
at lib$rsvp$asap$$flush (/Users/<%home_directory%>/App/src/App-Platform/client/common/App-common/node_modules/rsvp/dist/rsvp.js:1198:9)
at nextTickCallbackWith0Args (node.js:452:9)
at process._tickCallback (node.js:381:13)

[pete-the-pete]

I had the same issue, upgrading to ember-cli 2.40 solved it for me.