Laravel a form isn't reset after successful submit - laravel

Question

This is my controller:
class GuestbookController extends Controller
{
public function viewAll(Request $request)
{
if ($request->method() === 'POST') {
$this->validate($request, [
'username' => 'required|string|regex:/^[a-zA-Z\d]+$/',
'email' => 'required|string|email',
'homepage' => 'nullable|string|url',
'text' => 'string',
'captcha' => 'required|captcha',
],
[
'captcha.captcha' => 'The captcha is incorrect',
'username.regex' => 'Use English letters and digits only',
]);
$message = new Message();
$message->username = $request->get('username');
$message->email = $request->get('email');
$message->homepage = $request->get('homepage');
$message->text = strip_tags($request->get('text'));
$message->ip = $request->ip();
$message->browser = get_browser($request->header('User-Agent'))->browser;
$message->save();
}
$messages = Message::sortable(['created_at' => 'desc'])->paginate(25);
return view('Guestbook.viewAll', [
'newMessage' => new Message(),
'messages' => $messages
]);
}
}
I am using this plugin. viewAll handles both GET and POST requests, but the problem is that the form isn't reset when I successfully submit data keeping all the previous input values.
I've checked what the server sends and it seems like it sends inputs with last values in them. I've no idea what to do, please help!
View:
#extends('base')
#section('title', 'Guestbook')
#section('baseContent')
{!! BootForm::open(['model' => $newMessage]) !!}
{!! BootForm::text('username') !!}
{!! BootForm::email('email') !!}
{!! BootForm::text('homepage') !!}
{!! BootForm::textarea('text') !!}
{!! captcha_img() !!}
{!! BootForm::text('captcha') !!}
{!! BootForm::submit('Send') !!}
{!! BootForm::close() !!}
#if (count($messages) > 0)
<table class="table table-bordered">
<tr>
<td>#sortablelink('username', 'Username')</td>
<td>#sortablelink('email', 'Email')</td>
<td>Homepage</td>
<td>#sortablelink('created_at', 'Data added')</td>
<td>Message</td>
</tr>
#foreach ($messages as $message)
<tr>
<td>{{ $message->username }}</td>
<td>{{ $message->email }}</td>
<td>{{ $message->homepage }}</td>
<td>{{ $message->created_at }}</td>
<td>{{ $message->message }}</td>
</tr>
#endforeach
</table>
#else
There is nothing to display here.
#endif
{!! $messages->appends(\Request::except('page'))->render() !!}
#endsection
See all code here.

Answer 1

BootForm is compiled like this
<div class="form-group">
<label for="username" class="control-label col-md-2">Username</label>
<div class="col-md-10">
<input type="text" value={{old('username')}} name="username" class="form-control">
</div>
The old('params') is a helper method which keeps the previous inputs in session. And secondly, you have model associated with it.
I hope this helps