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: 2025-01-12 00:06:01 UTC
• JSON Representation

https://github.com/satyamjha24/car-s

CAR'S Corp is a marketplace for second-hand cars. Dealers list their inventory of second-hand cars on buycars.com. Buyers can look at the inventory and buy the car from buycars.com

bcrypt chakra-ui cors css cyclic express javascript jsonwebtoken mongodb-atlas mongoose netlify nodejs reactjs redux

Last synced: 09 Dec 2024

https://github.com/akunna1/movie-search-webapp-rest-api

Writing the restful api for a movie search webapp. Searching for movies using title, genre, rating, and adding sections for sorting movies by ratings, genres etc.

backend cors database dotenv express mongodb mongoose nodejs nodemon

Last synced: 04 Dec 2024

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