Configure ember-cli production build with sourcemaps to different domain

I'd like to configure the ember-cli build in a way that I'm able to change the URL for the sourcemaps. In production I only want to make them available for members inside the private network.

I can already get those sourcemap-files to the desired location.

The sourcemap reference at the bottom of the minified js files has to change from //# sourceMappingURL=app-cfe74707c5fabd05465ffc575495dc46.map to //# sourceMappingURL=http://localhost/sourcemaps/app-cfe74707c5fabd05465ffc575495dc46.map

Is there an ability to change it in the ember-cli config or do I have to use something like ember-cli-deploy?