If you wish to edit something in the JavaScript/Sass files, you have to compile them with Laravel Elixir.
From your terminal, cd into the comments directory, then install Laravel Elixir (npm install).
Now you can edit the JavaScript/Sass files and run Elixir with gulp or gulp watch.
Each time the assets are compiled you have to run php artisan vendor:publish --tag="public" --force to override them in your public directory.
Or you edit the gulpfile.js and change the jsDest and cssDest variables:
var jsDest = '../../public/vendor/comments/js/';
var cssDest = '../../public/vendor/comments/css/';
Assuming that you have the comments folder in your app directory.
To enable the source maps set elixir.config.sourcemaps = true; in the gulpfile.js.
If you wish to customize the views copy the view files from comments/resources/views to resources/vendor/comments and edit there.
See Overriding Vendor Language Files.
To catch ModelNotFoundException exceptions edit app/Exceptions/Handler.php and add in the render method:
public function render($request, Exception $e)
{
if ($e instanceof \Illuminate\Database\Eloquent\ModelNotFoundException && $request->ajax()) {
return response()->json('Not found.', 404);
}
return parent::render($request, $e);
}