Unable to kill process running on port in Ubuntu 18.04 docker container

[mathew-ferry13]

As part of an npm script I am stating a wiremock server using the wiremock npm package. Then executing some cypress tests and once they are complete am attempting to run: kill-port <PORT> on the port I am starting wiremock on.

When running locally (macOS Catalina 10.15.5), works just fine, but in an Ubuntu 18.04 docker container it does not kill the wiremock process

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