Recently I was working on a Laravel application with some ajax, and I was getting a 419 error after firing an Ajax call to a Laravel controller.
Laravel requires a token to be sent on some types of requests (POST being one of them), this is to prevent Cross site request forgery ( e.g. a form being submitted from somewhere it was intended by the developer to be submitted from ).
In php files its very easy to add this with the function call csrf_field().
But in js files, we need to essentially pull in this you store the token somewhere on the page and use js to pull it in.
$.ajax({ url: "/letutools/property/imagedelete", type: 'post', data: { '_token': $('meta[name="csrf-token"]').attr('content'), 'name': 'name' /* other data */ } });
you can pop the token in the page somewhere like this:
<meta name="csrf-token" content="{{ csrf_token() }}">
for reference: https://laravel.com/docs/5.5/csrf