Cross-Domain Issues in Frontend-Backend Data Interaction
Cross-Domain Issues in Frontend-Backend Data Interaction
Understanding Cross-Domain Problems
Problem Description
In a typical development setup, a Vue.js frontend might run on port 9000 while a Spring Boot backend operates on port 8080. This configuration often triggers cross-domain issues when the frontend attempts to communicate with the back ...
Posted on Sun, 02 Aug 2026 16:59:12 +0000 by kennethl
Cross-Origin Configuration for Vue.js and Spring Boot Applications
Understanding Cross-Origin Resource Sharing (CORS)
Cross-origin requests occur when a web application at one origin attempts to communicate with a server at a different origin. An origin is defined by the combination of protocol (http/https), domain name, and port number. The Same-Origin Policy, a fundamental security mechanism in web browsers, ...
Posted on Thu, 16 Jul 2026 17:22:59 +0000 by bigc79
Understanding S3 Multipart Uploads, ETags, and CORS
Understanding S3 Multipart Uploads, ETags, and CORS
Table of Contents
The Role of ETag in Multipart Uploads
1.1 ETag for Single File Uploads
1.2 ETag in Multipart Uploads (Core Mechanism)
1.3 Three Key Values of ETag
CORS and ExposeHeaders: Why It Matters for Browser Uploads
2.1 Browser Security Foundation: Same-Origin Policy
2.2 The Pur ...
Posted on Fri, 03 Jul 2026 16:55:55 +0000 by Spreegem
Spring Boot CORS Handling, Commons Lang3 Utility Guide, and Custom Startup Banner Configuration
Per-Controller CORS Setup
Apply the @CrossOrigin annotation directly to a controller method or entire controller to enable cross-origin requests for specific endpoints:
@RestController
@RequestMapping("/system")
public class SystemInfoController {
@CrossOrigin
@GetMapping("/current-time")
public ServiceResponse ...
Posted on Mon, 29 Jun 2026 16:55:43 +0000 by Chrysanthus
Implementing Cross-Origin Policies, API Documentation, Exception Management, and JWT Authentication in Spring Boot
Understanding and Resolving Cross-Origin Requests
Cross-Origin Resource Sharing (CORS) is triggered when a browser attempts to fetch resources from an origin differing in protocol, domain, or port from the current page. In decoupled frontend-backend architectures, this restriction enforced by the Same-Origin Policy requires explicit configurati ...
Posted on Sun, 28 Jun 2026 17:30:32 +0000 by akimm
Comparing Solutions for Frontend Cross-Origin Resource Sharing Issues
Cross-origin resource sharing (CORS) challenges are a common obstacle in frontend development. Modern web security policies enforce same-origin restrictions, but several techniques exist to overcome these limitations.
Understanding Same-Origin Policy
Browser security mechanisms prevent scripts from accessing resources outside their origin domai ...
Posted on Fri, 19 Jun 2026 16:55:55 +0000 by Kazhultee
Using Reverse Proxy to Handle CORS Issues
Setting Up a Vue CLI 3 Project with Axios
Create a new Vue project and install Axios:
vue create test
cd test
npm install axios
npm serve
Adding a Page with a API Request
Add a button to trigger a GET request to https://www.baidu.com/home/xman/data/tipspluslist:
<template>
<div class="hello">
<h1 @click="fet ...
Posted on Tue, 02 Jun 2026 16:57:55 +0000 by Birch
Cross-Domain Solutions in Web Development
Understanding Cross-Domain Requests
Cross-domain refers to scenarios where resources from one domain are accessed by documents or scripts from another domain. This concept is broadly defined and includes several scenarios:
Resource navigation: Links, redirects, form submissions
Resource embedding: <link>, <script>, <img>, < ...
Posted on Thu, 28 May 2026 18:43:12 +0000 by d_mc_a
Integrating Django, Vue, Axios, CORS, and Global Settings in a Full-Stack Project
Backend Setup with Django
Internationalization & Timezone
# d_prj/settings.py
LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'
USE_TZ = False
Frontend HTTP Client: Axios
Installation & Global Registration
# v-proj/src/main.js
import axios from 'axios'
Vue.prototype.$http = axios
Sample GET Request inapting to Vue Lifecycle
// v-p ...
Posted on Fri, 22 May 2026 22:54:09 +0000 by andycastle
Handling CORS in ASP.NET Core and IIS Environments
Configuring CORS via IIS web.config
When hosting an ASP.NET Core application on Internet Information Services (IIS), you can manage Cross-Origin Resource Sharing (CORS) settings directly through the web.config file. This approach is effective when you want the web server to handle preflight requests and header injections before they reach the a ...
Posted on Thu, 14 May 2026 04:18:15 +0000 by blindSpot