Return 406 on people/guid/contacts, format json

app/controllers/people_controller.rb

@@ -135,6 +135,10 @@ class PeopleController < ApplicationController
   end
 
   def contacts
+    respond_to do |format|
+      format.json { render nothing: true, status: 406 }
+
+      format.any do
         @person = Person.find_by_guid(params[:person_id])
 
         if @person
@@ -147,14 +151,16 @@ class PeopleController < ApplicationController
           gon.preloads[:contacts] = {
             count: @contacts_of_contact.count(:all),
           }
-      @contacts_of_contact = @contacts_of_contact.paginate(:page => params[:page], :per_page => (params[:limit] || 15))
+          @contacts_of_contact = @contacts_of_contact.paginate(page: params[:page], per_page: (params[:limit] || 15))
           @hashes = hashes_for_people @contacts_of_contact, @aspects
           respond_with @person, layout: "with_header"
         else
-      flash[:error] = I18n.t 'people.show.does_not_exist'
+          flash[:error] = I18n.t "people.show.does_not_exist"
           redirect_to people_path
         end
       end
+    end
+  end
 
   # shows the dropdown list of aspects the current user has set for the given person.
   # renders "thats you" in case the current user views himself

spec/controllers/people_controller_spec.rb

@@ -497,6 +497,11 @@ describe PeopleController, :type => :controller do
       get :contacts, :person_id => eve.person.to_param
       expect(response.body).to include '"photos":{"count":16}' # eve is not sharing with alice
     end
+
+    it "returns a 406 for json format" do
+      get :contacts, person_id: "foo", format: :json
+      expect(response.code).to eq("406")
+    end
   end
 
   describe '#diaspora_id?' do