在Blade中使用Sessions显示空白页面

Question

I have this in my blade file:

@if(Session::has('logged'))
    @include('layouts.usernav')
@else
    @include('layouts.publicnav')
@endif

When I run my page, it is just a blank page.

When I change it to look like this:

@if(1 == 1)
    @include('layouts.usernav')
@else
    @include('layouts.publicnav')
@endif

My page gets displayed. I don't know what I am doing wrong. What would/could be causing this?