Web Workers in Rails Projects

Question

I am trying to use web workers to run multiple JavaScript codes at the same time. To start the worker, I put the following in the javascript code section:

var worker = new Worker("my_task.js"); worker.onmessage = function(e) { console.log('Worker said: ', e.data); }; worker.postMessage("test"); 

my_task.js is the same folder as the file that contains the code above. This is what my_task.js looks like :

 self.addEventListener('message', function(e) { self.postMessage(e.data); }, false); 

But there seems to be a problem with Ruby on Rails (version 3.2.1):

 Started GET "/users/my_task.js" for 127.0.0.1 at ... ... ... ActiveRecord::RecordNotFound (Couldn't find User with id=my_task) 

As you can see, Rails tries to send an http get request when the script runs.
How can I solve this problem? Is there a better way to use web workers in Rails projects?

thanks

Answer 1

• Put my_task.js in /public/javascripts
• In your javascript code where the worker is created, use the following ERB: var worker = new Worker("<%= javascript_path "my_task.js" %>");
• Add .erb to the extension of any file that contains the above javascript code. Therefore, if it is mypage.js , it becomes mypage.js.erb .

The above works for me on Rails 4.2.0, ruby ​​2.0.0p598

Answer 2

Put my_task.js in the shared folder.

Answer 3

using the above <% javascript_path%>

and lib / assets / javascripts worked for me using Rail5