Axios call api with GET become OPTIONS

Question

I use axios for calling API (in front-end). I use the method \"GET\" :

import axios from \'axios\';
import querystring from \'querystring\';

var url   = \"m         


        

Answer 1

Like @Shilly says, OPTIONS method is pre-flight on modern browsers when Preflighted requests conditions (MDN) :

In the response header I had Allow:"GET, HEAD, POST, PUT, DELETE". So OPTIONS method is not available and need to configure it on in the server (Apache).

I do the change on apache (/etc/apache2/sites-available/000-default.conf) :

Header set Access-Control-Allow-Origin "*"
Header set Access-Control-Allow-Headers "*"
Header set Access-Control-Allow-Methods "PUT, GET, POST, DELETE, OPTIONS"

In Request headers I have :

Origin: "null" is a problem. The cause is :

file:// URLs produce a null Origin which can't be authorized via echo-back. Don't trying to perform a CORS request from a file:// URL (see this post for more details)

After put my javascript file on a apache server, the Origin was not null but I need to add NelmioCorsBundle to my Symfony project to allow preflight