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Home Web Front-end Vue.js How to solve the 'Network Error' caused by Vue Axios across domains

How to solve the 'Network Error' caused by Vue Axios across domains

Apr 07, 2025 pm 10:27 PM
vue access

The method to solve the cross-domain problem of Vue Axios includes: Configuring the CORS header on the server side to use the Axios proxy on the server to use JSONP on the WebSocket on the CORS plug-in

How to solve the 'Network Error' caused by Vue Axios across domains

How to solve the "Network Error" caused by Vue Axios across domains

When using Vue Axios for cross-domain requests, you may encounter a "Network Error" error, which is usually caused by the browser security mechanism. Here is how to resolve this issue:

1. Configure CORS header on the server side

CORS (cross-domain resource sharing) is a browser security mechanism designed to prevent malicious websites from accessing user data. To solve the cross-domain problem, the server needs to configure CORS in the response header.

The specific configuration method varies by server type. For example, for a Node.js server, you can install the cors module and use the following code:

 <code>app.use(cors({ origin: 'https://example.com', methods: ['GET', 'POST', 'PUT', 'DELETE', 'HEAD', 'OPTIONS'], headers: ['Content-Type', 'Authorization'] }));</code>

2. Use Axios Agent

If CORS cannot be configured on the server side, you can use the Axios proxy to solve cross-domain problems. Axios provides proxy options that allow proxying requests to another server.

 <code>const axios = require('axios'); const instance = axios.create({ proxy: { host: 'proxy.example.com', port: 8080 } });</code>

3. Use JSONP

JSONP (JSON with Padding) is a cross-domain alternative solution. It allows loading of JSON data from different domain names in script tags.

 <code>$.ajax({ url: 'https://example.com/api/data', dataType: 'jsonp', success: function(data) { console.log(data); } });</code>

4. Use WebSocket

WebSocket is a full duplex communication protocol that allows for persistent connections between the browser and the server. It is not restricted by cross-domain and can therefore be used for cross-domain communication.

5. Use the CORS plugin

For Chrome and Firefox browsers, you can use the CORS plugin to temporarily allow cross-domain requests.

Notes:

  • Make sure your browser supports CORS.
  • Access-Control-Allow-Origin must be included in the server response header.
  • The request method must match the methods allowed in the CORS configuration.

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