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"""
This inline script modifies a streamed response.
If you do not need streaming, see the modify_response_body example.
Be aware that content replacement isn't trivial:
- If the transfer encoding isn't chunked, you cannot simply change the content length.
- If you want to replace all occurences of "foobar", make sure to catch the cases
where one chunk ends with [...]foo" and the next starts with "bar[...].
"""
def modify(chunks):
"""
chunks is a generator that can be used to iterate over all chunks.
"""
for chunk in chunks:
yield chunk.replace("foo", "bar")
def responseheaders(context, flow):
flow.response.stream = modify
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