Source maps aren't accessible

[danielwestendorf]

When using the following config, my javascript is downloaded, but the browser is unable to download the source map referenced in the JS.

In development.log

Started GET "/offline-be578580ab1d9a1c9d5c.js.map" for XX.XX.XX.XX at 2020-03-24 17:44:22 -0600
ActionController::RoutingError (No route matches [GET] "/offline-be578580ab1d9a1c9d5c.js.map"):

In the browser console:

Source map error: Error: request failed with status 404
Resource URL: http://localhost:3000/offline.js
Source Map URL: offline-be578580ab1d9a1c9d5c.js.map

My serviceworker.rb

Rails.application.configure do
  config.serviceworker.routes.draw do
    match "/offline.js" => "offline.js", pack: true
  end
end

Would it be possible to automatically support source maps?