Axios使用GET调用api成为OPTIONS [英] Axios call api with GET become OPTIONS

问题描述

我使用axios来调用API（在前端）。
我使用方法GET：

 从'axios'导入axios; 
从'querystring'导入查询字符串; 
 
 var url =mydomain.local，
 token =blablabla ... blabla; 
 
 var configs = {
标题：{
'授权'：'承载'+代币，
'代理商'：'demo0'
} 
}; 
 
 var testapi = axios.create（{
 baseURL：'http：// api。'+ url 
}）; 
 
 testapi.get（'/ relativeUrl'，configs 
）.then（function（response）{
 console.log（response）; 
}）。catch （function（error）{
 console.log（error）; 
}）; 
  

我得到了405方法不允许。方法是OPTIONS，但我使用方法.get（）。

原点：null是个问题。原因是：

file：// URL产生一个null，无法通过
echo-back授权。不要尝试从file：// URL执行CORS请求（有关详细信息，请参阅此帖子）

将我的javascript文件放在apache服务器上之后，Origin不是null但我需要将NelmioCorsBundle添加到我的Symfony项目中以允许预检

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

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

var url   = "mydomain.local",
    token = "blablabla...blabla";  

var configs = {
    headers: {
        'Authorization': 'Bearer ' + token,
        'Agency': 'demo0'
    }
};

var testapi = axios.create({
        baseURL: 'http://api.' + url
    });

testapi.get( '/relativeUrl', configs
).then(function (response) {
    console.log(response);
}).catch(function (error) {
    console.log(error);
});

I got a 405 Method Not Allowed. The method is "OPTIONS" but I use the method ".get()". 405 Method Not Allowed. Method OPTIONS

I test call api with postman and I get 200 OK :

postman 200 OK screenshot

Anyone has an idea ?

解决方案

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

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