View file ProForum/Files/application/resources/views/presets/default/user/payment/redirect.blade.php
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>{{$general->site_name}}</title>
</head>
<body>
<form action="{{$data->url}}" method="{{$data->method}}" id="auto_submit">
@foreach($data->val as $k=> $v)
<input type="hidden" name="{{$k}}" value="{{$v}}"/>
@endforeach
</form>
<script>
"use strict";
document.getElementById("auto_submit").submit();
</script>
</body>
</html>