coffee-script-source still broken in Windows

[rmohan80]

Using v 1.8.0 works fine, but v1.10.0 gives the following error:

ExecJS::ProgramError at /
TypeError: Object doesn't support this property or method

Completed 500 Internal Server Error in 8468ms (ActiveRecord: 0.0ms)

ExecJS::ProgramError - TypeError: Object doesn't support this property or method:
execjs (2.6.0) lib/execjs/external_runtime.rb:84:in extract_result' execjs (2.6.0) lib/execjs/external_runtime.rb:39:inexec'
execjs (2.6.0) lib/execjs/external_runtime.rb:21:in eval' execjs (2.6.0) lib/execjs/external_runtime.rb:46:incall'
coffee-script (2.4.1) lib/coffee_script.rb:78:in compile' sprockets (3.5.2) lib/sprockets/coffee_script_processor.rb:21:inblock in call'
sprockets (3.5.2) lib/sprockets/cache.rb:85:in fetch' sprockets (3.5.2) lib/sprockets/coffee_script_processor.rb:20:incall'
sprockets (3.5.2) lib/sprockets/processor_utils.rb:75:in call_processor' sprockets (3.5.2) lib/sprockets/processor_utils.rb:57:inblock in call_processors'
sprockets (3.5.2) lib/sprockets/processor_utils.rb:56:in call_processors' sprockets (3.5.2) lib/sprockets/loader.rb:134:inload_from_unloaded'
sprockets (3.5.2) lib/sprockets/loader.rb:60:in block in load' sprockets (3.5.2) lib/sprockets/loader.rb:318:infetch_asset_from_dependency_cache'
sprockets (3.5.2) lib/sprockets/loader.rb:44:in load' sprockets (3.5.2) lib/sprockets/cached_environment.rb:20:inblock in initialize'
sprockets (3.5.2) lib/sprockets/cached_environment.rb:47:in load' sprockets (3.5.2) lib/sprockets/bundle.rb:23:inblock in call'
sprockets (3.5.2) lib/sprockets/utils.rb:183:in dfs' sprockets (3.5.2) lib/sprockets/bundle.rb:24:incall'
sprockets (3.5.2) lib/sprockets/processor_utils.rb:75:in call_processor' sprockets (3.5.2) lib/sprockets/processor_utils.rb:57:inblock in call_processors'
sprockets (3.5.2) lib/sprockets/processor_utils.rb:56:in call_processors' sprockets (3.5.2) lib/sprockets/loader.rb:134:inload_from_unloaded'
sprockets (3.5.2) lib/sprockets/loader.rb:60:in block in load' sprockets (3.5.2) lib/sprockets/loader.rb:318:infetch_asset_from_dependency_cache'
sprockets (3.5.2) lib/sprockets/loader.rb:44:in load' sprockets (3.5.2) lib/sprockets/cached_environment.rb:20:inblock in initialize'
sprockets (3.5.2) lib/sprockets/cached_environment.rb:47:in load' sprockets (3.5.2) lib/sprockets/base.rb:66:infind_asset'
sprockets (3.5.2) lib/sprockets/environment.rb:30:in find_asset' sprockets (3.5.2) lib/sprockets/base.rb:92:in[]'
sprockets-rails (2.3.3) lib/sprockets/rails/helper.rb:230:in lookup_asset_for_path' sprockets-rails (2.3.3) lib/sprockets/rails/helper.rb:190:incheck_errors_for'
sprockets-rails (2.3.3) lib/sprockets/rails/helper.rb:137:in block in javascript_include_tag' sprockets-rails (2.3.3) lib/sprockets/rails/helper.rb:136:injavascript_include_tag'
app/views/layouts/application.html.erb:6:in _app_views_layouts_application_html_erb___554822127_48185724' actionview (4.2.5) lib/action_view/template.rb:145:inblock in render'
activesupport (4.2.5) lib/active_support/notifications.rb:166:in instrument' actionview (4.2.5) lib/action_view/template.rb:333:ininstrument'
actionview (4.2.5) lib/action_view/template.rb:143:in render' actionview (4.2.5) lib/action_view/renderer/template_renderer.rb:66:inrender_with_layout'
actionview (4.2.5) lib/action_view/renderer/template_renderer.rb:52:in render_template' actionview (4.2.5) lib/action_view/renderer/template_renderer.rb:14:inrender'
actionview (4.2.5) lib/action_view/renderer/renderer.rb:42:in render_template' actionview (4.2.5) lib/action_view/renderer/renderer.rb:23:inrender'
actionview (4.2.5) lib/action_view/rendering.rb:100:in _render_template' actionpack (4.2.5) lib/action_controller/metal/streaming.rb:217:in_render_template'
actionview (4.2.5) lib/action_view/rendering.rb:83:in render_to_body' actionpack (4.2.5) lib/action_controller/metal/rendering.rb:32:inrender_to_body'
actionpack (4.2.5) lib/action_controller/metal/renderers.rb:37:in render_to_body' actionpack (4.2.5) lib/abstract_controller/rendering.rb:25:inrender'
actionpack (4.2.5) lib/action_controller/metal/rendering.rb:16:in render' actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:44:inblock (2 levels) in render'
activesupport (4.2.5) lib/active_support/core_ext/benchmark.rb:12:in block in ms' C:/Ruby22/lib/ruby/2.2.0/benchmark.rb:303:inrealtime'
activesupport (4.2.5) lib/active_support/core_ext/benchmark.rb:12:in ms' actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:44:inblock in render'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:87:in cleanup_view_runtime' activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:25:incleanup_view_runtime'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:43:in render' actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:10:indefault_render'
actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:5:in send_action' actionpack (4.2.5) lib/abstract_controller/base.rb:198:inprocess_action'
actionpack (4.2.5) lib/action_controller/metal/rendering.rb:10:in process_action' actionpack (4.2.5) lib/abstract_controller/callbacks.rb:20:inblock in process_action'
activesupport (4.2.5) lib/active_support/callbacks.rb:117:in call' activesupport (4.2.5) lib/active_support/callbacks.rb:555:inblock (2 levels) in compile'
activesupport (4.2.5) lib/active_support/callbacks.rb:505:in call' activesupport (4.2.5) lib/active_support/callbacks.rb:92:inrun_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in _run_process_action_callbacks' activesupport (4.2.5) lib/active_support/callbacks.rb:81:inrun_callbacks'
actionpack (4.2.5) lib/abstract_controller/callbacks.rb:19:in process_action' actionpack (4.2.5) lib/action_controller/metal/rescue.rb:29:inprocess_action'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:32:in block in process_action' activesupport (4.2.5) lib/active_support/notifications.rb:164:inblock in instrument'
activesupport (4.2.5) lib/active_support/notifications/instrumenter.rb:20:in instrument' activesupport (4.2.5) lib/active_support/notifications.rb:164:ininstrument'
actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:30:in process_action' actionpack (4.2.5) lib/action_controller/metal/params_wrapper.rb:250:inprocess_action'
activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:18:in process_action' actionpack (4.2.5) lib/abstract_controller/base.rb:137:inprocess'
actionview (4.2.5) lib/action_view/rendering.rb:30:in process' actionpack (4.2.5) lib/action_controller/metal.rb:196:indispatch'
actionpack (4.2.5) lib/action_controller/metal/rack_delegation.rb:13:in dispatch' actionpack (4.2.5) lib/action_controller/metal.rb:237:inblock in action'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in dispatch' actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:45:inserve'
actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in block in serve' actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:inserve'
actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in call' rack (1.6.4) lib/rack/etag.rb:24:incall'
rack (1.6.4) lib/rack/conditionalget.rb:25:in call' rack (1.6.4) lib/rack/head.rb:13:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/params_parser.rb:27:in call' actionpack (4.2.5) lib/action_dispatch/middleware/flash.rb:260:incall'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in context' rack (1.6.4) lib/rack/session/abstract/id.rb:220:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/cookies.rb:560:in call' activerecord (4.2.5) lib/active_record/query_cache.rb:36:incall'
activerecord (4.2.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in call' activerecord (4.2.5) lib/active_record/migration.rb:377:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:29:in block in call' activesupport (4.2.5) lib/active_support/callbacks.rb:88:inrun_callbacks'
activesupport (4.2.5) lib/active_support/callbacks.rb:778:in _run_call_callbacks' activesupport (4.2.5) lib/active_support/callbacks.rb:81:inrun_callbacks'
actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in call' actionpack (4.2.5) lib/action_dispatch/middleware/reloader.rb:73:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/remote_ip.rb:78:in call' better_errors (2.1.1) lib/better_errors/middleware.rb:84:inprotected_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:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:17:in call' web-console (2.2.1) lib/web_console/middleware.rb:39:incall'
actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in call' railties (4.2.5) lib/rails/rack/logger.rb:38:incall_app'
railties (4.2.5) lib/rails/rack/logger.rb:20:in block in call' activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:inblock in tagged'
activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in tagged' activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:intagged'
railties (4.2.5) lib/rails/rack/logger.rb:20:in call' quiet_assets (1.1.0) lib/quiet_assets.rb:27:incall_with_quiet_assets'
actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in call' rack (1.6.4) lib/rack/methodoverride.rb:22:incall'
rack (1.6.4) lib/rack/runtime.rb:18:in call' activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:incall'
rack (1.6.4) lib/rack/lock.rb:17:in call' actionpack (4.2.5) lib/action_dispatch/middleware/static.rb:116:incall'
rack (1.6.4) lib/rack/sendfile.rb:113:in call' railties (4.2.5) lib/rails/engine.rb:518:incall'
railties (4.2.5) lib/rails/application.rb:165:in call' rack (1.6.4) lib/rack/lock.rb:17:incall'
rack (1.6.4) lib/rack/content_length.rb:15:in call' rack (1.6.4) lib/rack/handler/webrick.rb:88:inservice'
C:/Ruby22/lib/ruby/2.2.0/webrick/httpserver.rb:138:in service' C:/Ruby22/lib/ruby/2.2.0/webrick/httpserver.rb:94:inrun'
C:/Ruby22/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'

I can provide more errors from the browser if needed.

Thanks

[vendethiel]

What if you don't use execjs (and just install nodejs)? What's your code?

[rmohan80]

apologies if my answer isn't upto scratch. But I"m pretty new at this and learning "Ruby on Rails". My code is very simple though. I have a file called "new.html.erb"

Home

Welcome to the home of <%= @owner.name %>.

I was born on <%= @owner.birthdate %>.

Only <%= @owner.countdown %> days until my birthday!

I'm assuming the model and controllers are irrelevant in this case as the outputs are:

owner.name = "Foobar Kadigan"
owner.birthdate ="12-Dec-1992"
owner.countdown = but an integer between 1 to 365

[vendethiel]

That seems to be erb code, not CoffeeScript code, though.

[rmohan80]

yes, it is ERB code. There is no CoffeeScript code/customization. Just using the default v1.10.0 - maybe I"m missing the question?

[marcomd]

Previously it was possible to downgrade to version 1.8.0 but not anymore, 1.9 and 1.10 does not works on windows

[gregors]

http://stackoverflow.com/questions/28421547/rails-execjsprogramerror-in-pageshome

[gregors]

it certainly looks like coffee script is broken on windows :(

[marcomd]

Fortunately, you can still go back to the old 1.8.0 version, it works

[ukoloff]

It is not CoffeeScript who is broken. It is Windows [Script Host] who lacks Object.create(). It can be easily polifilled:

// Fix for CoffeeScript 1.9+
+function()
{
  if(Object.create) return
  Object.create=function(proto)
  {
    function f(){}
    f.prototype=proto
    return new f
  }
}()

This polyfill should be added to CoffeeScript or to coffee-script gem...

[joshirashmics]

Can you please elaborate more on this. Do I need to add this function after COMPILE_FUNCTION_SOURCE = <<-JS in coffee_Script.rb

[ukoloff]

Yes, I think that will do.

In general I can imagine 3 ways:

1. Patch coffee-script itself (or coffee-script-source gem)
2. Patch coffee-script gem (your proposal)
3. Use my execjs-xtrn gem, that has the polyfill applied

The latter is not recommended in production. But all the three either. And Windows itself ;-)

[chrisranney]

@ukoloff How did you come to understand this limitation in the windows scripting host? I would like to be able to recreate your steps for a better understanding and ultimately become a better developer myself.

Thanks,
Chris

[GeoffreyBooth]

CoffeeScript 2’s Node compiler assumes ES2015 support in the runtime. The browser compiler, per #4523, will run in the browsers that Babel supports by default in its env preset (which may or may not be a wide enough net to support Windows Scripting Host). If the browser compiler won’t run in your runtime, then a) your runtime is really old and probably won’t run lots of JavaScript code; and b) you will need to take responsibility for further transpiling or polyfilling the browser compiler to a point where your runtime supports it. Babel has additional options for polyfilling and very-old runtimes that you could investigate.

Closing as out of scope for CoffeeScript.