CORS issue for Angular + Laravel project

Question

I am having trouble to create web app using Angular which is accessing to RESTful API built by Laravel. Although I have created middleware which passes correct headers, it d

Answer 1

Well, this is a kind of annoying issue, I know, but there are 2 solutions.

1.

You define OPTIONS method for every API calling route, and make it pass the middleware you created like following:

Route::options('todos/{any?}', ['middleware' => 'cors', function(){return;}]);
Route::options('projects/{any?}', ['middleware' => 'cors', function(){return;}]);

2

You hack Laravel core class file, so that it passes CORS header for every OPTIONS request.

in the

/vendor/laravel/framework/src/framework/Illuminate/Routing/RouteCollection.php

you will find following function

protected function getRouteForMethods($request, array $methods)
    {
        if ($request->method() == 'OPTIONS') {
            return (new Route('OPTIONS', $request->path(), function () use ($methods) {
                return new Response('', 200, ['Allow' => implode(',', $methods)]);
            }))->bind($request);
        }

        $this->methodNotAllowed($methods);
    }

Update this function to following, so that it will pass CORS headers for OPTIONS request

protected function getRouteForMethods($request, array $methods)
    {
        if ($request->method() == 'OPTIONS') {
            return (new Route('OPTIONS', $request->path(), function () use ($methods) {
                return new Response('', 200, [
                    'Allow' => implode(',', $methods),
                    'Access-Control-Allow-Origin' => '*',
                    'Access-Control-Allow-Credentials' => 'true',
                    'Access-Control-Allow-Methods' => 'GET, POST, PUT, DELETE, OPTIONS',
                    'Access-Control-Allow-Headers' => 'X-Requested-With, Content-Type, X-Auth-Token, Origin, Authorization',
                ]);

            }))->bind($request);
        }

        $this->methodNotAllowed($methods);
    }

So for me, both solutions work okay. Choice is yours. But solution #2 is something hack on Laravel core, you might have some issues if you upgrade Laravel itself? But at least it has less coding. :D

Hope these solutions will be helpful.