CSRF token regenerates every few seconds

[edalati]

• Laravel Version: 5.5.28
• PHP Version: 7.1.3
• OS: Windows 10
• Database Driver & Version: MySQL 5.7
• Session Driver: MySQL
• Timezone: UTC
• Session config is the framework default.

Description:

I'm sending a post request to an existing route and redirecting back with a session message.
The csrf token regenerates every time i repeat the request or every few seconds, Making the one present in the form invalid.

Update:

A fresh laravel installation has the same problem with login form.

Controller Method:

public function store(Request $request)
{
    $this->validate($request, [
        'username' => 'required'
    ]);
    $username = $request->get('username');

    // check for duplicate
    $exists= ChannelRequest::where('username', $username)
        ->where('user_id', auth()->id())->exists();
    
    if ($exists) {
        return back()->with('message', 'Duplicate request.');
    }

    auth()->user()
        ->requests()
        ->create($request->only('username'));
    
    return back()->with('message', 'Success.');
}

Form:

<form class="form-horizontal" method="POST" action="{{ route('requests.store') }}">
{{ csrf_field() }}

    <div class="form-group{{ $errors->has('username') ? ' has-error' : '' }}">
        <label for="username" class="col-md-4 control-label">Username: </label>

        <div class="col-md-6">
            <input id="username" type="username" class="form-control" name="username" value="{{ old('username') }}" autofocus dir="ltr">

            @if ($errors->has('username'))
                <span class="help-block">
                    <strong>{{ $errors->first('username') }}</strong>
                </span>
            @endif
        </div>
    </div>

    <div class="form-group">
        <div class="col-md-8 col-md-offset-4">
            <button type="submit" class="btn btn-success">
                Send
            </button>
        </div>
    </div>
</form>

[rodrigopedra]

I had the same problem when developing in windows using the built-in serve artisan command. It was due to some security directives from my employer's company AD.

I couldn't fix it. Installing the fork for laravel valet for windows worked for me then.

[edalati]

I updated my PHP version to 7.1.13 and it fixed the problem.

I'll close this in a couple of days if nobody is interested but the Windows specific bug is still in there!
At least i hope it's a windows specific bug.

Thanks for the help @rodrigopedra.