How to prevent Gunicorn from returning a 'Server' http header?

Question

I would like to mask the version or remove the header altogether.

Answer 1

My mocky-patch free solution, involves wrapping the default_headers method:

import gunicorn.http.wsgi
from six import wraps


def wrap_default_headers(func):
    @wraps(func)
    def default_headers(*args, **kwargs):
        return [header for header in func(*args, **kwargs) if not header.startswith('Server: ')]
    return default_headers


gunicorn.http.wsgi.Response.default_headers = wrap_default_headers(gunicorn.http.wsgi.Response.default_headers)