aws esc windows container pseudoTerminal cloudwatch ouput with strange chars

Question

I am running AWS ESC (Windows EC2).

The container with -t runs well on my machine. The task definition has pseudoTerminal: true so that it will run -t on Windows EC2.

The output logged into CloudWatch log group has strange chars beside the correct data.

Note: the output is fine when running without -t (pseudoTerminal: null)

Answer 1

Looks like my container output using the xterm control sequences.

https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Definitions