Help with Laravel Redirect::back()

Hi Guys,

I picked up a project that needed a huge refactor as everything is currently inside the controllers and models.

I moved the checkout login process with the db to a repo here is my controller

<?php

namespace App\Http\Controllers;

use DB;
use App\Http\Controllers\Controller;
use App\User;
use App\Wishlist;
use App\Order;
use App\Place;
use App\Common;
use App\Http\Requests;
use App\Http\Requests\CheckoutLoginRequest;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Http\RedirectResponse;
use Validator;
use Input;
use Auth;
use Illuminate\Support\Facades\Hash;
use Session;
use Gloudemans\Shoppingcart\Facades\Cart;
use App\Repositories\UserRepositoryInterface;
use Mail;

class UsersController extends Controller
{

    public function __construct(UserRepositoryInterface $users)
    {
        $this->users = $users;
        session_start();
    }
   

    /**
     * Login via checkout with basket
     * @param CheckoutLoginRequest $request
     */
    public function checkoutLogin(CheckoutLoginRequest $request)
    {
        $this->users->checkoutLogin($request);
    }


}

and here is my user repo

<?php

namespace App\Repositories\Eloquent;

use App\User;
use App\Http\Requests;
use Auth;
use App\Repositories\UserRepositoryInterface;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Support\Facades\Hash;
use Session;
use Gloudemans\Shoppingcart\Facades\Cart;

class UserRepository implements UserRepositoryInterface {

    /**
     * Create a new UserRepository instance.
     *
     * @param  \App\User  $user
     * @return void
     */
    public function __construct(User $user)
    {
        $this->user = $user;
    }

    /**
     * Get current user.
     *
     */
    public function currentUser()
    {
        $currentUser = Auth::user();
        return $currentUser;
    }

    /**
     * Find all users
     * @return $users
     */
    public function findAll()
    {
        return $this->user->orderBy('created_at', 'desc');
    }


    /**
     * Find all users paginated.
     *
     * @param int $perPage
     * @return $users
     */
    public function findAllPaginated($perPage = 10)
    {
        return $this->user->orderBy('created_at', 'desc')->paginate($perPage);
    }

    /**
     * Register user
     *
     * @param $request
     */
    public function register($request)
    {

    }

    /**
     * Login via checkout with basket
     * @param $request
     * @return View
     */
    public function checkoutLogin($request)
    {

        if (empty($_SESSION['captcha']) || trim(strtolower($_REQUEST['captcha'])) != $_SESSION['captcha']) {

            Session::flash('login', 'function');
            return Redirect::back()->withErrors("Invalid captcha");

        } else {

            $user = $this->user->where('email', '=', $request['email'])->first();

            if( Hash::check($request['password'], $user->Password) ){
                    Auth::login($user);
                    $user = Auth::user();
                    Session::put('PersonName', $user->FirstName.' '.$user->MiddleName.' '.$user->LastName);
                    Session::put('PersonID', $user->PersonID);
                    Session::put('Email', $user->Email);
                    Session::put('MobilePhone', $user->MobilePhone);

                    $carts = Cart::content();

                    foreach($carts as $cart)
                    {
                    }
                    if(!empty($cart))
                    {
                        //Todo Fix this (not redirecting back properly)
                        return Redirect::back();
                    }
                    else
                    {
                        return redirect('/');
                    }
            } else {

                Session::flash('login', 'function');
                return Redirect::back()->withErrors(array('loginerror' => 'The account entered has not been found.'));

            }
        }

    }

    /**
     * Get User by id
     * @param $id
     * @return $user
     */
    public function getUserById($id) {
        return $this->user->where('PersonID','=',$id)->first();
    }


    /**
     * Delete User by id
     * @param $id
     * @return redirect
     */
    public function deleteUserById($id) {
        return $this->user->where('PersonID','=',$id)->delete();
    }

    /**
     * Get User by Email
     * @param $email
     * @return $user
     */
    public function getUserByEmail($email) {
        return $this->user->where('Email','=',$email)->first();
    }

    /**
     * Logout user
     */
    public function logoutUser() {
        Auth::logout();
        Session::flush();
    }

} 

Inside the function checkoutLogin once they have logged in and if something is in the cart i am trying to redirect back but for some reason i just get a blank white page if i dump and die Redirect::back() i get

RedirectResponse {#288 ▼
  #request: Request {#37 ▼
    #json: null
    #sessionStore: null
    #userResolver: Closure {#227 ▶}
    #routeResolver: Closure {#245 ▶}
    +attributes: ParameterBag {#39 ▶}
    +request: ParameterBag {#38 ▶}
    +query: ParameterBag {#45 ▶}
    +server: ServerBag {#42 ▶}
    +files: FileBag {#41 ▶}
    +cookies: ParameterBag {#40 ▶}
    +headers: HeaderBag {#43 ▶}
    #content: "_token=QdcPNtsmCk5kmXisA4nYYrN8EffY7t97qdH6yk4n&email=nathanrobjohn%40gmail.com&password=&captcha=venomed"
    #languages: null
    #charsets: null
    #encodings: null
    #acceptableContentTypes: null
    #pathInfo: "/checkoutlogin"
    #requestUri: "/aerobus/public/checkoutlogin"
    #baseUrl: "/aerobus/public"
    #basePath: null
    #method: "POST"
    #format: null
    #session: Store {#205 ▶}
    #locale: null
    #defaultLocale: "en"
  }
  #session: Store {#205 ▶}
  #targetUrl: "http://localhost:812/aerobus/public/makepayment"
  +headers: ResponseHeaderBag {#287 ▶}
  #content: """
    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8" />
            <meta http-equiv="refresh" content="1;url=http://localhost:812/aerobus/public/makepayment" />
    
            <title>Redirecting to http://localhost:812/aerobus/public/makepayment</title>
        </head>
        <body>
            Redirecting to <a href="http://localhost:812/aerobus/public/makepayment">http://localhost:812/aerobus/public/makepayment</a>.
        </body>
    </html>"""
  #version: "1.0"
  #statusCode: 302
  #statusText: "Found"
  #charset: null
}