VueJS App with SocketIO

April 3, 2021

CORS Problem

I couldn't figure out why I was getting a CORS error. Everything looked right. Then, after a few hours, I went to the Vue Socket IO GitHub page and looked at the issues. Found this issue, and the stack overflow answer. The issue was a version mismatch with the socket io and the socket io client. I was using a very old version of the client, and a recent version of the package. Now that is corrected, things are behaving as expected.

"": "^4.0.1",
"": "^4.0.1",
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