Meeting SDK Type and Version
Zoom Meeting SDK Web. Version 2.18.0
Description
I am having some CORS errors when using the Whiteboard. Whenever I start a new Whiteboard I get an “setting” CORS error, that doesn’t seen to affect anything, but whenever I make a comment I get another error and my comment doesn’t show up.
Error?
After making the comment I get a toast with the following message:
“A server error occurred. Try again later or if error persists, Contact Us for help.”
In the console:
Access to fetch at ‘https://us05nws.zoom.us/nws/das/api/v1/documents/feature/setting’ from origin ‘’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.
After disabling CORS (I tested using the Allow CORS extension)
Access to fetch at ‘https://us05nws.zoom.us/nws/das/api/v1/documents/l_uOFCiQTbSpTsWPWDYfJw/pages/5755738980352/comments’ from origin ‘’ has been blocked by CORS policy: Request header field zm-scenario is not allowed by Access-Control-Allow-Headers in preflight response.
The setting error is pretty similar.
Troubleshooting Routes
- Include header Access-Control-Allow-Origin: “*”
- Turn off CORS completely
- Add my ngrok redirect URL in the Allow List
How To Reproduce
- Create and join a meeting
- Start Whiteboard
- Make a comment