This is an experimental demo of tailcat in the browser. Unlike the normal CLI and non-JS library versions, all of its traffic is relayed through DERP servers; browsers can't make tailcat's direct peer-to-peer connections without WebRTC support (issue #4).
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Create a listener, share its address out of band, then the other
side sends with this page or the CLI: tailcat <addr> < file
Paste the receiver's address. The receiver can be this page on
another machine, or the CLI: tailcat > file