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I have an app that runs on my localhost port:3000. I am using ngrok to get a public URL. Now when i am using a tcp tunnel as below: ./ngrok tcp 3000

i get the public url as below: tcp://0.tcp.ngrok.io:14964 -> localhost:3000

I try sending REST post req to https://0.tcp.ngrok.io:14964/ and it works.

But when i try to use an HTTP channel. ./ngrok http --bind-tls "both" -host-header=localhost 3000

i get public URL: "https://b9076b83.ngrok.io -> localhost:3000"

Now when i try to send the post request to https://b9076b83.ngrok.io/, it doesn't work, i get a 502 error.

What really could be the issue?

Onkar Banerjee
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