WebSocket connection to 'ws://localhost:3030/socket.io/?EIO=3&transport=websocket&sid=tBY1KVSVE9Efxos6AAAD' failed: Invalid frame header

[sraza295]

Access to fetch at 'http://localhost:443/peerjs/peerjs/id?ts=15986174805940.24035296013998186' from origin 'http://localhost:3030' has been blocked by CORS policy: 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.
peerjs.min.js:64 GET http://localhost:443/peerjs/peerjs/id?ts=15986174805940.24035296013998186 net::ERR_FAILED
(anonymous) @ peerjs.min.js:64
(anonymous) @ peerjs.min.js:64
(anonymous) @ peerjs.min.js:64
(anonymous) @ peerjs.min.js:64
t @ peerjs.min.js:64
r.retrieveId @ peerjs.min.js:64
i @ peerjs.min.js:66
(anonymous) @ script.js:6
index.js:83 WebSocket connection to 'ws://localhost:3030/socket.io/?EIO=3&transport=websocket&sid=tBY1KVSVE9Efxos6AAAD' failed: Invalid frame header