How to disable Transfer-Encoding: chunked?

[Sorin Stefan Nicolin]

This is a repost of the Github question I posted here:

https://github.com/falconry/falcon/issues/912#issuecomment-249699902

So far I tried the following:

• set resp.stream to the length of the file I am returning (it is a get request)
• don't set resp.stream
• set resp.body instead "resp.body = open(my_file, encoding="utf-8").read()"
• set resp.stream_len to the file size
• don't set resp.stream_len
• set the Content-Length header myself "resp.set_header("Content-Length", "{}".format(statinfo.st_size))"

And for every combination of the above Transfer-Encoding is set to chunked. What am I doing wrong?

I am using Gunicorn as my WSGI server and have Nginx proxying requests to it.

Thanks.

[Sorin Stefan Nicolin]

Ok found the problem. It is not related to Falcon or Gunicorn. Nginx drops the Content-Length header if gzip is enabled because it compresses on the fly and thus can't know the file size beforehand. It then automatically adds Transfer-Encoding: chunked.