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Cross-origin resource sharing (CORS)

Cross-origin resource sharing (CORS) is a mechanism that allows restricted resources on a web page to be accessed from another domain outside the domain from which the first resource was served. CORS also relies on a mechanism by which browsers make a “preflight” request to the server hosting the cross-origin resource, in order to check that the server will permit the actual request. In that preflight, the browser sends headers that indicate the HTTP method and headers that will be used in the actual request. For security reasons, browsers restrict cross-origin HTTP requests initiated from scripts. For example, fetch() and XMLHttpRequest follow the same-origin policy. This means that a web application using those APIs can only request resources from the same origin the application was loaded from unless the response from other origins includes the right CORS headers.

Resource types

Invocations of fetch() or XMLHttpRequest
Web Fonts (for cross-domain font usage in @font-face within CSS), so that servers can deploy TrueType fonts that can only be loaded cross-origin and used by websites that are permitted to do so
WebGL textures
Images/video frames drawn to a canvas using drawImage()
CSS shapes from images
scripts
iframes

GitHub: https://github.com/topics/cors
Wikipedia: https://en.wikipedia.org/wiki/Cross-origin_resource_sharing
Created by: WHATWG, Matt Oshry, Brad Porter, Michael Bodell, Tellme Networks
Released: May 2006
Related Topics: xhr, ajax, jsonp, content-security-policy,
Last updated: 2025-01-15 00:06:27 UTC
JSON Representation

https://github.com/hiejulia/hotelbooking

Hotel Booking project

apache-avro apache-kafka api-gateway cors docker eureka-server hystrix-dashboard kafka maven microservice mysql oauth2 rabbitmq spring-security springboot springcloud turbine zuul-server

Last synced: 16 Dec 2024

https://github.com/tushcmd/olo-scraper

This is a full-stack web scraping application that simulates browser-like interactions using a headless browser. Users can input a URL, and the application scrapes data and performs specified actions.

cors express nodejs puppeteer react tailwindcss typescript winston

Last synced: 23 Dec 2024

https://github.com/wdyitz/auth-api

API de autenticação de usuário

bcrypt cors express jest jwt-authentication nodejs prisma tsup typescript

Last synced: 03 Dec 2024

https://github.com/0xabdulkhaliq/pixelhunt-backend

cors express mongoose rest-api

Last synced: 31 Dec 2024

https://github.com/grenish/chitchat

ChitChat: Your go-to messaging app for seamless connections. Effortlessly join or create rooms, share moments, and enjoy easy, engaging conversations.

cors expressjs messaging messenger nodejs nodemon reactjs socket-io tailwindcss vite

Last synced: 09 Dec 2024

https://github.com/shuvoprogram/courierhub_backend

bcrypt cors dotenv expressjs jsonwebtoken mongoose nodemailer nodemon url

Last synced: 23 Dec 2024

https://github.com/gil9red/cors

CORS with API KEY

cors flask python python-3 webserver

Last synced: 16 Dec 2024

https://github.com/shuvoprogram/edusphere_backend

EduSphere 🌐 revolutionizes learning! An interactive LMS fostering personalized education, collaboration, and skill mastery.

axios bcrypt cloudinary cookie-parser cors datauri dotenv ejs expressjs http-status-code ioredis jwt mongoose multer node-cron nodemailer stripe ts-node-dev typescript

Last synced: 23 Dec 2024

https://github.com/shuvoprogram/inventorypro_backend

📦 InventoryPro: Simplify inventory control with this smart, user-friendly app. Streamline processes and optimize your stock management effortlessly.

body-parser cors dotenv express express-mongo-sanitize express-rate-limit helmet hpp jsonwebtoken mongoose morgan nocache nodemailer sendgrid xss-clean

Last synced: 23 Dec 2024

https://github.com/mahossain1/university-management-backend-express-mongoose

The backend of the University Management System is built to efficiently handle and process data for student enrollment, course management, faculty administration, and academic records. Developed with Node.js and Express, the API ensures secure and scalable communication between the frontend and the database.

cloudinary cors express jwt jwt-authentication mongodb mongoose node nodejs zod zod-validation