Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript React Basics Thinking in Components Use a Component with JSX

Hi everyone I'm getting this error. I'm not sure what is going on

Access to XMLHttpRequest at 'file:///Users/jonathanguerrero/Documents/GitHub/scoreboard_proj/app.js' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, chrome-untrusted, https.

Failed to load resource: net::ERR_FAILED

Tom Phillips
Tom Phillips
883 Points

The CORS error stands for 'cross origin resource sharing'. It is telling you that you can't request or "load" resources from a server that is outside the domain in which you are working from. Check out this article. It describes 3 ways to fix your issue: https://medium.com/@dtkatz/3-ways-to-fix-the-cors-error-and-how-access-control-allow-origin-works-d97d55946d9