Cross-Origin Resource Sharing (CORS)

Cross-Origin Resource Sharing (CORS) is a security feature implemented by web browsers. It allows or restricts web pages from making requests to a different domain than the one that served the original page. This is important for protecting user data and preventing malicious attacks. When a web page tries to access resources (like images or APIs) from another domain, the browser checks if that domain permits it through specific headers. If allowed, the resource is shared; if not, the browser blocks the request, maintaining safe interactions across different websites.