Rails 3 returning a HTTP 406 Not Acceptable?

Question

I have the following controller code:

  def create
    @admin = Admin.new(params[:admin])
    respond_to do |format|
      if @admin.save
        redirect_to         


        

Answer 1

I had a similar error, my controller was only responding to JSON. I needed it to respond to HTML also for the tests to work (which only makes sense):

class AdsController < ApplicationController
  respond_to :json, :html

I received the error when trying to do: assert_redirected_to ad_url(ad)