Discourse Development: Failed to register/update a ServiceWorker

support
1

The following appears periodically (every few seconds) in the JavaScript console.

Failed to register/update a ServiceWorker for scope ‘http://localhost:3000/’: Load failed with status 500 for script ‘http://localhost:3000/service-worker.js’.

The terminal output looks like this:

D, [2018-06-03T20:28:07.080027 #19420] DEBUG -- : Delivering messages [] to client 6eeef67735ba4dab8c7226fa01287a24 for user 1 (chunked)
D, [2018-06-03T20:28:08.098346 #19420] DEBUG -- :   UserAuthToken Load (0.8ms)  SELECT  "user_auth_tokens".* FROM "user_auth_tokens" WHERE ((auth_token = 'OmH38KrXB6FtPKlFofE3BgvZevI=' OR
                          prev_auth_token = 'OmH38KrXB6FtPKlFofE3BgvZevI=') AND rotated_at > '2018-04-04 18:28:08.095703') LIMIT 1
D, [2018-06-03T20:28:08.103359 #19420] DEBUG -- :   User Load (0.9ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
D, [2018-06-03T20:28:08.107814 #19420] DEBUG -- :    (0.5ms)  SELECT "groups"."id" FROM "groups"
D, [2018-06-03T20:28:08.112021 #19420] DEBUG -- : Delivering messages [] to client 6eeef67735ba4dab8c7226fa01287a24 for user 1 (chunked)
I, [2018-06-03T20:28:09.096577 #19420]  INFO -- : Started GET "/service-worker.js" for 127.0.0.1 at 2018-06-03 20:28:09 +0200
I, [2018-06-03T20:28:09.144970 #19420]  INFO -- : Processing by StaticController#service_worker_asset as JS
D, [2018-06-03T20:28:09.148873 #19420] DEBUG -- :   UserAuthToken Load (1.0ms)  SELECT  "user_auth_tokens".* FROM "user_auth_tokens" WHERE ((auth_token = 'OmH38KrXB6FtPKlFofE3BgvZevI=' OR
                          prev_auth_token = 'OmH38KrXB6FtPKlFofE3BgvZevI=') AND rotated_at > '2018-04-04 18:28:09.146556') LIMIT 1
D, [2018-06-03T20:28:09.152199 #19420] DEBUG -- :   User Load (1.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
I, [2018-06-03T20:28:09.156395 #19420]  INFO -- : Completed 500 Internal Server Error in 10ms (ActiveRecord: 2.1ms)


F, [2018-06-03T20:28:09.163221 #19420] FATAL -- : 
Errno::ENOENT - No such file or directory @ rb_file_s_ctime - /home/phil/dev/repos/discourse/public/assets:
  app/controllers/static_controller.rb:167:in `block (2 levels) in service_worker_asset'
  actionpack (5.1.4) lib/action_controller/metal/mime_responds.rb:201:in `respond_to'
  app/controllers/static_controller.rb:159:in `service_worker_asset'
  actionpack (5.1.4) lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action'
  actionpack (5.1.4) lib/abstract_controller/base.rb:186:in `process_action'
  actionpack (5.1.4) lib/action_controller/metal/rendering.rb:30:in `process_action'
  actionpack (5.1.4) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (5.1.4) lib/active_support/callbacks.rb:131:in `run_callbacks'
  actionpack (5.1.4) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (5.1.4) lib/action_controller/metal/rescue.rb:20:in `process_action'
  actionpack (5.1.4) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
  activesupport (5.1.4) lib/active_support/notifications.rb:166:in `block in instrument'
  activesupport (5.1.4) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
  activesupport (5.1.4) lib/active_support/notifications.rb:166:in `instrument'
  actionpack (5.1.4) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (5.1.4) lib/action_controller/metal/params_wrapper.rb:252:in `process_action'
  activerecord (5.1.4) lib/active_record/railties/controller_runtime.rb:22:in `process_action'
  actionpack (5.1.4) lib/abstract_controller/base.rb:124:in `process'
  actionview (5.1.4) lib/action_view/rendering.rb:30:in `process'
  rack-mini-profiler (1.0.0) lib/mini_profiler/profiling_methods.rb:104:in `block in profile_method'
  actionpack (5.1.4) lib/action_controller/metal.rb:189:in `dispatch'
  actionpack (5.1.4) lib/action_controller/metal.rb:253:in `dispatch'
  actionpack (5.1.4) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
  actionpack (5.1.4) lib/action_dispatch/routing/route_set.rb:31:in `serve'
  actionpack (5.1.4) lib/action_dispatch/journey/router.rb:50:in `block in serve'
  actionpack (5.1.4) lib/action_dispatch/journey/router.rb:33:in `serve'
  actionpack (5.1.4) lib/action_dispatch/routing/route_set.rb:834:in `call'
  rack-protection (2.0.1) lib/rack/protection/frame_options.rb:31:in `call'
  lib/middleware/omniauth_bypass_middleware.rb:24:in `call'
  rack (2.0.5) lib/rack/conditional_get.rb:25:in `call'
  rack (2.0.5) lib/rack/head.rb:12:in `call'
  rack (2.0.5) lib/rack/session/abstract/id.rb:232:in `context'
  rack (2.0.5) lib/rack/session/abstract/id.rb:226:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/cookies.rb:613:in `call'
  activerecord (5.1.4) lib/active_record/migration.rb:556:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/callbacks.rb:26:in `block in call'
  activesupport (5.1.4) lib/active_support/callbacks.rb:97:in `run_callbacks'
  actionpack (5.1.4) lib/action_dispatch/middleware/callbacks.rb:24:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/executor.rb:12:in `call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/debug_exceptions.rb:59:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
  logster (1.2.9) lib/logster/middleware/reporter.rb:31:in `call'
  railties (5.1.4) lib/rails/rack/logger.rb:36:in `call_app'
  railties (5.1.4) lib/rails/rack/logger.rb:26:in `call'
  config/initializers/100-quiet_logger.rb:16:in `call'
  config/initializers/100-silence_logger.rb:29:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/request_id.rb:25:in `call'
  rack (2.0.5) lib/rack/method_override.rb:22:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/executor.rb:12:in `call'
  actionpack (5.1.4) lib/action_dispatch/middleware/static.rb:125:in `call'
  rack (2.0.5) lib/rack/sendfile.rb:111:in `call'
  lib/middleware/missing_avatars.rb:21:in `call'
  lib/middleware/turbo_dev.rb:34:in `call'
  rack-mini-profiler (1.0.0) lib/mini_profiler/profiler.rb:285:in `call'
  message_bus (2.1.5) lib/message_bus/rack/middleware.rb:63:in `call'
  railties (5.1.4) lib/rails/engine.rb:522:in `call'
  railties (5.1.4) lib/rails/railtie.rb:185:in `method_missing'
  rack (2.0.5) lib/rack/urlmap.rb:68:in `block in call'
  rack (2.0.5) lib/rack/urlmap.rb:53:in `call'
  puma (3.9.1) lib/puma/configuration.rb:224:in `call'
  puma (3.9.1) lib/puma/server.rb:602:in `handle_request'
  puma (3.9.1) lib/puma/server.rb:435:in `process_client'
  puma (3.9.1) lib/puma/server.rb:299:in `block in run'
  puma (3.9.1) lib/puma/thread_pool.rb:120:in `block in spawn_thread'

This makes it quite annoying finding the correct logger statements. How do I get rid of it?

2

Looks like you have force_https enabled. Try running bin/rails c it will give you a hint at what to do to fix it :innocent:

3 Likes
3

Going to the settings shows “force https” as being disabled. I haven’t changed any discourse setting or configuration after cloning the repository and running it. I’ve just worked on a plugin. No other files were changed.

Running the command bin/rails c doesn’t provide any hint that seems to be relevant, either. Maybe it’s something else?

phil@RAUMSTATION in ~/dev/repos/discourse on master
👻 bin/rails c             
/home/phil/.rvm/gems/ruby-2.4.1/gems/i18n-0.8.6/lib/i18n.rb:12: warning: already initialized constant I18n::RESERVED_KEYS
/home/phil/.rvm/gems/ruby-2.4.1/gems/i18n-0.8.6/lib/i18n.rb:12: warning: previous definition of RESERVED_KEYS was here
/home/phil/.rvm/gems/ruby-2.4.1/gems/i18n-0.8.6/lib/i18n.rb:13: warning: already initialized constant I18n::RESERVED_KEYS_PATTERN
/home/phil/.rvm/gems/ruby-2.4.1/gems/i18n-0.8.6/lib/i18n.rb:13: warning: previous definition of RESERVED_KEYS_PATTERN was here
Loading development environment (Rails 5.1.4)
[1] pry(main)>
4

Did you compile assets in your dev environment at some point? You may still have an assets manifest file that can cause this. Try clearing your public/assets folder.

5

No such directory exists. Investigating this more closely, it turns out that this is precisely the problem.

mkdir public/assets

Creating the directory solves the issue. There probably should be a check against this somewhere, right?

2 Likes
6

Oh weird. Looks pretty minor since it’s only affecting dev envs, but we’ll get this fixed.

2 Likes
8

Fixed, development service workers should act better without that directory - thanks for reporting this! :pineapple:

https://github.com/discourse/discourse/commit/44ee26721a4671d318b4d69c8d63855a089ce347

5 Likes