A browser security mechanism that controls which domains can make requests to your API, preventing unauthorized cross-origin access.
CORS uses HTTP headers (Access-Control-Allow-Origin, Access-Control-Allow-Methods, etc.) to declare which origins are permitted. Preflight requests (OPTIONS) check permissions before actual requests. Misconfigured CORS is a common security vulnerability.
Configuring FastAPI CORS middleware to allow requests from purcellanalytics.com while blocking all other origins.
Proper CORS configuration is essential for SPAs that make API calls to a different domain — too permissive and you're vulnerable, too restrictive and your app breaks.
A unique identifier used to authenticate and authorize API requests, typically passed as a header or...
An attack that tricks authenticated users into performing unintended actions on a web application th...
A web security vulnerability that allows attackers to inject malicious scripts into web pages viewed...
A modern, high-performance Python web framework for building APIs, with automatic OpenAPI documentat...
A security method requiring two or more verification factors (password + phone code, biometric, hard...
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