js.erb not executing javascript but is processed rails

Question

I'm trying to get my pagination working with Ajax, using either will_paginate or kaminari.

When I hit pagination link my log says

Processing by Instructor::FullDashboardController#pupil_leads as JS

and

Rendered instructor/full_dashboard/pupil_leads.js.erb within layouts/main (0.1ms)

But the js has no effect. So to test it I wrote

console.log("Hello");
<%logger.debug "This is the js file"%>
alert('Hello Rails');

In the js.erb file, in my log I see This is the js file as expected, but there is nothing in js console in my browser and the alert doesn't show. So I know the file is being processed, as my logger.debug works but there is no js.

How can I further troubleshoot this?

Rails 4.1

Ruby 2.1

Full Dash Controller

class Instructor::FullDashboardController < ApplicationController
   layout 'main'
...
   def pupil_leads
     @ivar = Model.where("something = ?", some_object.id).order("created_at desc").page(params[:page]).per(10)
     respond_to do |f|
       f.js { render :content_type => 'text/javascript' }
       f.html
     end
  end

Answer 1

Add layout: false option to the render block:

def pupil_leads
   # some code here
  respond_to do |f|
    f.js { render layout: false, content_type: 'text/javascript' }
    f.html
  end
end

_{For some reason Rails don't recognize request as xhr, I also watched that the views extension (.erb.html or .slim) must be specified in full.}