Laravel 5.1 - Token Mismatch issue with Iframes on Safari Browser Only

I have created few forms in laravel 5.1, now i am using those forms on another site using IFrame. Those forms works in all browsers except Safari. When i try to submit/post data after filling up forms, i get error "CSRF Token Mismatch", I dont know what the issue here, csrf token is also being created and sent. This is only happening in case of safari browser.

Can someone guide me that how i can get rid of this issue??

Steps To Reproduce:

create a form and then use it via IFrame. after form is submitted, CSRF Token Mismatch error is generated.

How to solve this? Please help!

CODE SAMPLE:

<form method="post" action="/step1/" accept-charset="UTF-8">
<input name="_method" type="hidden" value="post">
{!! csrf_field() !!} 
<div class="row" style="margin-top:15px; margin-bottom:15px;">
<div class="col-md-4 col-xs-5 hidden">
<input name="voucher_id" type="hidden" value="" id="voucher_id">

  <input  class="form-control spin text-center  qty1" name="qty" id="qty" type="text" value="1" >
  <input name="r_full_name" type="hidden" value="" id="r_full_name">


</div>

<div class="col-md-3 col-xs-3">
<button type="submit" class="btn btn-theme"><i class="fa fa-shopping-cart" aria-hidden="true"></i> | BUY</button>
</div>
</form>

this is sample code... AGAIN all this works perfect in any other browser (FF, Chrome) but when I put this forms into iframe in another site then I get TokenMissmatch error...

via Aleks Per