if enabled brotli - broken standart nginx module

hello,

if enabled bortli comression and site accessed via https - nginx module http_addition_module stop working on https/ssl site, if use http - works.

brotli config:

brotli on;
brotli_comp_level 11;

addition module config:
ssl on;
....
add_after_body /footer.html;
location /footer.html { root /home/mirrors/mirror; }

footer not added if accessed by https, if http same config - all works proper.

Reproduce the reported configuration with brotli enabled over HTTPS and HTTP, including http_addition_module, add_after_body, and the /footer.html location. Compare the response behavior between protocols and inspect the interaction between the Brotli and NGINX addition modules; done means the footer is added consistently over HTTPS as it is over HTTP.

Written by the indexing model from the issue text.