Answers for "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://localhost:6001/socket.io/?EIO=3&transport=polling&t=NRZ3xyq. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing)"

Javascript

socket io with cors

const io = require("socket.io")(httpServer, 
  { 
  cors: {    
    origin: "*",    
    methods: ["GET", "POST"]  
  }});

Posted by: Guest on December-25-2020

Source

socket.io cors

const io = require("socket.io")(httpServer, {  cors: {    origin: "http://localhost:8080",    methods: ["GET", "POST"]  }});httpServer.listen(3000);

Posted by: Guest on November-30-2020

Source

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