cannot get JSON data

I have form that should post data in JSON format, but it doesn't work yet.

here is my blade

{!! Form::open(array( 'class' => 'calculator', 'name' => 'calculator', 'files' => true, 'ng-app' => 'SaunaDoorCalc', 'ng-controller' => 'SaunaDoorCalcController')) !!}
@if(Session::has('message'))
    <div class="alert alert-info">{{Session::get('message')}}</div>
@endif
@if(Session::has('errors'))
	<div class="alert alert-info">@foreach($errors->all() as $error){{ $error }}<br>@endforeach
</div>
@endif

	<input name="calc" ng-model="calc" type="hidden" value="saunadoor">

<div class="row">
	<div class="col-xs-12 col-sm-6">Размер дверной коробки
		<div class='input' ng-repeat="a in sizeswitch">
			<input type="radio" name='radio' ng-model="$parent.selectedSizeSwitch" ng-value="a.label" id="@{{a.value}}">
			<label for="@{{a.value}}">@{{a.label}}</label>
		</div>
	</div>

   <div ng-switch on="selectedSizeSwitch">
	<div class="col-xs-12 col-sm-6" ng-switch-when="Стандартный">Стандартные размеры дверной коробки (мм)
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="$parent.selectedStandardSize" ng-options="b.label for b in standardsizes" class="standard_sizes custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>

	<div class="col-xs-12 col-sm-6" ng-switch-when="Нестандартный">Нестандартные размеры дверной коробки
		<div class='input'>
			<input name="door_size_b" id="input1" type="text" ng-model="$parent.DoorSizeB" ng-pattern="/^[0-9]{1,4}$/" placeholder=""><label for="door_size_b">Ширина дверной коробки, мм</label>
			<span ng-show="calculator.door_size_b.$error.pattern">Введите число от 0 до 9999мм</span>
		</div>

		<div class='input'>
			<input name="door_size_h" id="door_size_h" type="text" ng-model="$parent.DoorSizeH" ng-pattern="pattern"><label for="door_size_h">Высота дверной коробки, мм</label>
			<span ng-show="calculator.door_size_b.$error.pattern">Введите число от 0 до 9999мм</span>
		</div>
	</div>
   </div>


</div>

<div class="row">
	<div class="col-xs-12 col-sm-6"><span class="col-xs-6 col-sm-3">Стекло</span>
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="selectedGlass" name="glass" ng-options="c.label for c in glass" class="custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>

	<div class="col-xs-12 col-sm-6"><span class="col-xs-6 col-sm-3">Материал коробки</span>
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="selectedKorobka" name="korobka" ng-options="d.label for d in korobka" class="custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>
</div>


<div class="row">
	<div class="col-xs-12 col-sm-6"><span class="col-xs-6 col-sm-3">Петли</span>
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="selectedPetli" ng-options="e.label for e in petli" class="custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>

	<div class="col-xs-12 col-sm-6"><span class="col-xs-6 col-sm-3">Декор</span>
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="selectedDekor" ng-options="f.label for f in dekor" class="custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>
</div>

<div class="row">
	<div class="col-xs-12 col-sm-6"><span class="col-xs-6 col-sm-3">Доставка</span>
		<div class="custom-dropdown custom-dropdown--white">
			<select ng-model="selectedDostavka" ng-options="g.label for g in dostavka" class="custom-dropdown__select custom-dropdown__select--white"></select>
		</div>
	</div>

	<div class='input col-xs-12 col-sm-6'>
  		<input type='checkbox' id='montazh' ng-model="montazh" ng-true-value="1500" ng-false-value="0"/>
  		<label for="montazh">Монтаж</label>
	</div>
</div>


<table class="result table table-hover table-striped table-bordered table-condensed" ng-switch on="selectedSizeSwitch"> 
	<caption>Итоговая спецификация</caption>
<tbody>
<tr><td>Опция</td>							<td>Значение</td>												<td>Цена, руб</td></tr>
<tr><td>Размер дверной коробки (мм):</td>	
	<td ng-switch-default>@{{selectedSizeSwitch}}, @{{selectedStandardSize.label}}</td>
  	<td ng-switch-when="Нестандартный">@{{selectedSizeSwitch}}, @{{DoorSizeB}}x@{{DoorSizeH}}</td>	
  	<td ng-switch-default>@{{selectedStandardSize.price}}</td>
  	<td ng-switch-when="Нестандартный">@{{DoorSizeB*DoorSizeH*5000/1000000}}</td>
</tr>

<tr><td>Стекло</td>							<td>@{{selectedGlass.label}}</td>								<td>@{{selectedGlass.price}}</td></tr>
<tr><td>Материал дверной коробки:</td>		<td>@{{selectedKorobka.label}}</td>								<td>@{{selectedKorobka.price}}</td></tr>
<tr><td>Петли:</td>							<td>@{{selectedPetli.label}}</td>								<td>@{{selectedPetli.price}}</td></tr>
<tr><td>Декор:</td>							<td>@{{selectedDekor.label}}</td>								<td>@{{selectedDekor.price}}</td></tr>
<tr><td>Доставка:</td>						<td>@{{selectedDostavka.label}}</td>							<td>@{{selectedDostavka.price}}</td></tr>
<tr><td>Монтаж:</td>						<td>@{{montazh.label}}</td>										<td>@{{montazh}}</td></tr>

<tr><td>Стоимость двери:</td>				<td></td>
  <td ng-switch-default>@{{selectedStandardSize.price + selectedGlass.price + selectedKorobka.price + selectedPetli.price + selectedDekor.price + selectedDostavka.price + montazh}}</td>
  <td ng-switch-when="Нестандартный">@{{DoorSizeB*DoorSizeH*5000/1000000 + selectedGlass.price + selectedKorobka.price + selectedPetli.price + selectedDekor.price + selectedDostavka.price + montazh}}</td>
</tr>
</tbody>
</table>


<div class="col-sm-6">
	<div class="input">
		<input id="name" name="name" ng-model="name" type="text" required>
		<label for="name">Ваше имя *</label>
	</div>
	<div class="input">
		<input id="phone" name="tel" ng-model="tel" type="text"  required>
		<label for="phone">Номер телефона *</label>
	</div>
	<div class="input">
		<input id="email" name="email" ng-model="email" type="email"  required>
		<label for="email">Адрес электронной почты *</label>
	</div>
</div>

<div class="col-sm-6">
	<div class="input">
		<textarea id="message" name="message" ng-model="message"></textarea>
		<label for="message">Комментарии</label>
	</div>
</div>


<div class="footer col-xs-12 col-sm-6">
    <button type="submit" class="btn btn-primary pull-right" ng-click="submit(calculator.$valid)">Отправить заказ</button>
</div>

{!! Form::close() !!}

then my angular script


angular
  .module('SaunaDoorCalc',[])
  .controller('SaunaDoorCalcController', function($scope, $http) {

    $scope.outerScope = {};
    $scope.data = {};

    $scope.sizeswitch = [           
      { label: 'Стандартный', value: 'standard'},
      { label: 'Нестандартный', value: 'special'}
    ];
    $scope.selectedSizeSwitch = 'Стандартный'; // Default is Стандартный

    $scope.standardsizes = [           
      { label: '585х1880', price:5600 },
      { label: '685x1880', price:3600 },
      { label: '685x1980', price:5600 },
      { label: '685x2080', price:5600 },
      { label: '685x2180', price:6600 },
      { label: '785x1880', price:5600 },
      { label: '785x1980', price:5600 },
      { label: '785x2080', price:5600 },
      { label: '785x2180', price:6600 }
    ];
    $scope.selectedStandardSize = $scope.standardsizes[1];  
    // Default is 685x1880 - second array element. First element index is 0.
    $scope.DoorSizeB = 700;  
    $scope.DoorSizeH = 2000;  

    $scope.glass = [           
      { label: 'Прозрачное (стандарт)', price:0 },
      { label: 'Матовое (Matelux)', price:1000 },
      { label: 'Бронза (Bronze)', price:1500 },
      { label: 'Матовая Бронза (Matelux Bronze)', price:2000 },
      { label: 'Черное', price:4000 }
    ];
    $scope.selectedGlass = $scope.glass[0]; 

    $scope.korobka = [           
      { label: 'Липа (стандарт)', price:1000 },
      { label: 'Лиственница', price:2000 },
      { label: 'Бук', price:3000 },
      { label: 'Дуб', price:6000 }
    ];
    $scope.selectedKorobka = $scope.korobka[0]; 

    $scope.petli = [           
      { label: 'Хром (стандарт)', price:900 },
      { label: 'Бронза', price:1900 },
      { label: 'Золото', price:2000 }
    ];
    $scope.selectedPetli = $scope.petli[0]; 

    $scope.dekor = [           
      { label: 'Нет', price:0 },
      { label: 'Пескоструйный рисунок', price:1000 },
      { label: 'Лазерная гравировка', price:1500 },
      { label: 'Фотопечать', price:2000 },
      { label: 'Пескоструйный рисунок с фьюзингом', price:3000 }
    ];
    $scope.selectedDekor = $scope.dekor[0]; 

    $scope.dostavka = [           
      { label: 'Нет', price:0 },
      { label: 'в пределах МКАД', price:1500 },
      { label: 'за МКАД', price:1500 }
    ];
    $scope.selectedDostavka = $scope.dostavka[0]; 
    $scope.montazh = 0;

    $scope.url = 'http://steklo.dev/izdeliya-iz-stekla/steklyannye-dveri/steklyannye-dveri-dlya-sauny';

    $scope.submit = function(isValid) {
      if (isValid) {
          $http.post($scope.url, {"name": $scope.name, "email": $scope.email, "message": $scope.message, "dostavka1": $scope.dostavka, "dostavka2": $scope.selectedDostavka }).
                        success(function(data, status) {
                            console.log(data);
                            $scope.status = status;
                            $scope.data = data;
                            $scope.result = data; 
                        })
            }else{
                
                  alert('Form is not valid');
            }

        }


  });

So I expect to get message with $scope.name, $scope.email, $scope.message, $scope.dostavka, $scope.selectedDostavka

BUT

if in my controller I have

dd( Input::all() );

then on the output I get

array:9 [▼
  "_token" => "WxC7nWvurGkS1w9pAw1KC9044pGQ34uirlWWGXo8"
  "calc" => "saunadoor"
  "radio" => "Стандартный"
  "glass" => "object:3"
  "korobka" => "object:8"
  "name" => "Fedor"
  "tel" => "1234567"
  "email" => "tet@mail.com"
  "message" => ""
]

if in my controller I have

dd( Input::json() );

then on the output I get

ParameterBag {#211 ▼
  #parameters: []
}

if in my controller I have

dd( json_encode( Input::all() ) );

then on the output I get

"{"_token":"WxC7nWvurGkS1w9pAw1KC9044pGQ34uirlWWGXo8","calc":"saunadoor","radio":"\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439","glass":"object:3","korobka":"object:8","name":"Fedor","tel":"1234567","email":"tet@mail.com","message":""}"

First of all I cannot understand how to setup this POST properly to get JSON data in controller? And the second is that I see that what is actually sending is all form elements that have name attribut. And even if they not listed in my $http.post function. Why this happens?

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