message: fix(service-worker): don't include sourceMappingURL in ngsw-worker
  Fixes
  PR Close
diff: @@ -30,7 +30,9 @@ genrule(
  name = "ngsw_worker_renamed",
  srcs = ["//packages/service-worker/worker:ngsw_worker.es6.js"],
  outs = ["ngsw-worker.js"],
  - cmd = "cp $< $@",
  + # Remove sourcemap since this file will be served in production site
  + # See https://github.com/angular/angular/issues/23596
  + cmd = "grep -v '//# sourceMappingURL' < $< > $@",
  )
  ng_package(
  