Having the same issue. It worked a few days then it started showing this error :
method: “join”, status: false, result: null, errorMessage: “Joining fail”, errorCode: 1
and console log error : has been blocked by CORS policy: Request header field x-socket-id is not allowed by Access-Control-Allow-Headers in preflight response.
Thank you for reaching out to the Zoom Developer Forum. Please try testing with the Sample React App and let us know if you see the same issues. I think this might be related to the local computer attempting to build the application or the NPM configuration that you have.
If that’s not the issue, please submit a new forum topic and fill out the details.