![CORS error when using fetch with the JIRA connect app tutorial - Jira Cloud - The Atlassian Developer Community CORS error when using fetch with the JIRA connect app tutorial - Jira Cloud - The Atlassian Developer Community](https://global.discourse-cdn.com/atlassiandeveloper/original/3X/e/4/e4f417a4eb7e5229f25f381d7c93b40fc00c8a29.png)
CORS error when using fetch with the JIRA connect app tutorial - Jira Cloud - The Atlassian Developer Community
![Access to fetch at <Fetching API URL> from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource - Developing with Prismic - Prismic People Access to fetch at <Fetching API URL> from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource - Developing with Prismic - Prismic People](https://europe1.discourse-cdn.com/business20/uploads/prismic/original/2X/f/fb5879f57835f90f127115ab003736c7a72d97cc.png)
Access to fetch at <Fetching API URL> from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource - Developing with Prismic - Prismic People
![javascript - Fetch api cors request throws error: No 'Access-Control-Allow-Origin', but Pre-Flight response shows header is set - Stack Overflow javascript - Fetch api cors request throws error: No 'Access-Control-Allow-Origin', but Pre-Flight response shows header is set - Stack Overflow](https://i.stack.imgur.com/D05ig.png)