Learn to code — free 3,000-hour curriculum

Ankur Anand

1 post •

How Cross-Origin Resource Sharing requests affect your app’s performance

#JavaScript

How Cross-Origin Resource Sharing requests affect your app’s performance

Ankur Anand

Ankur Anand 3 years ago

freeCodeCamp is a donor-supported tax-exempt 501(c)(3) nonprofit organization (United States Federal Tax Identification Number: 82-0779546)

Our mission: to help people learn to code for free. We accomplish this by creating thousands of videos, articles, and interactive coding lessons - all freely available to the public. We also have thousands of freeCodeCamp study groups around the world.

Donations to freeCodeCamp go toward our education initiatives and help pay for servers, services, and staff.

You can make a tax-deductible donation here.

Trending Guides

Our Nonprofit

About Alumni Network Open Source Shop Support Sponsors Academic Honesty Code of Conduct Privacy Policy Terms of Service Copyright Policy