Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources.

This article is there to help you understand CORS (especially as it relates to Infura). We’ll talk about how it works and what to do about your CORS errors.

Learn how CORS as a standard for allowing or rejecting cross-origin requests in an ASP.NET Core app.

Cross-origin resource sharing (CORS) is a browser mechanism which enables controlled access to resources located outside of a given domain. It extends and adds flexibility to the same-origin policy (SOP). However, it also provides potential for cross-domain attacks, if a website's CORS policy is poorly configured and implemented.

Cross-origin resource sharing (CORS) is a mechanism to safely bypass the same-origin policy, that is, it allows a web page to access restricted resources from a server on a domain different than the domain that served the web page.

Aug 15, 2023 · CORS (Cross-Origin Resource Sharing) is a security policy implemented by web browsers to protect users from malicious attacks. This article explains what CORS is, how it works, and provides solutions to common problems developers encounter when dealing with it.

Feb 24, 2024 · Cross-Origin Resource Sharing is used by the browser as a security measure to restrict access to a certain resource/certain resources of a webpage/web application. CORS uses headers to...

Learn what CORS is and how it works in this article. Find out how to fix common CORS errors and what are some best practices for implementing CORS securely and efficiently.

Feb 17, 2025 · CORS (Cross-Origin Resource Sharing) is a security feature implemented by web browsers to restrict how resources are requested from different origins (domains, protocols, or ports). It prevents malicious websites from making unauthorized requests to a different domain on behalf of the user.

The request from the browser then fails with a CORS error. If your frontend communicates with a nodejs (maybe express) backend then the solution is to do your Infura requests from the backend where the API secret can be kept secure.