Unable to modify any traffic

Inline scripts dont seem to alter response or requests.

[details=Summary]import sys

state = {}

state[“old”], state[“new”] = “mitm”, “NOT WORKING”

def response(ctx, flow):
flow.response.content = flow.response.content.replace(state[“old”],state[“new”])[/details]

This is very simple code thats slightly modified from the mitmproxy website, except it doesnt do anything.
Is there something I’m missing about altering flows?

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Hi,

This particular feature works just fine for me, both on 0.17.1 and master. Sorry, but it’s hard to say what’s going wrong here without further information.