proxy setting not working in environment variables

i have an issue where;
when i set proxy with **... ' -e HTTP_PROXY="ip:port" -e ENABLE_PROXY_ON_EMULATOR=true ' ...**

the proxy is not set in the emulator or device, the device inside the emulator is never connecting to my proxy ( hence i don't see traffic on it ), the only way to make it work is to use "adb shell settings put global http_proxy" (inside the running container) and then you have to push a certificate in "/system/etc/security/cacerts/" order to make all the sites connected to the proxy not ask for a trusted certificate, which make thinks that there is no a way to pass that certificate at the moment we run the container.