laravel 5.6 - 连接被拒绝

I test an laravel 5.6 app running on localhost:8000. I have a separated vue project (not the one in laravel but external stand alone vue project) running on localhost:8080.

I want external vue to call a route from web.php in laravel:

Route::get('/stores/{store}', 'StoresController@show');

My code in external vue:

axios.get('http://localhost:8000/stores/68')///<-- I do have a record of 68 in database.
.then((response) => {
    console.log(self.postdata);
}).catch((err) => {
    console.log(err);
});

And I get error:

GET http://localhost:8000/stores/68 net::ERR_CONNECTION_REFUSED

I tried with IP address too:

axios.get('http://192.168.0.142:8000/stores/68')

And still get error:

GET http://192.168.0.142:8000/stores/68 net::ERR_CONNECTION_REFUSED

After much reading, I suspect is because of the csrf-token don't exist in external vue.

How can I resolve this?

Edit: Below are the screencap of the error from the console: