@heresandyboy perhaps could Have an answer to this

from superagent.

Totally I solved. On the Dockerfile i add all possible ways to stop to use proxy by npm

Install production dependencies only

RUN npm config delete proxy
RUN npm config delete http-proxy
RUN npm config delete https-proxy
RUN npm config rm proxy
RUN npm config rm https-proxy
RUN set HTTP_PROXY=null
RUN set HTTPS_PROXY=null
npm set maxsockets 3
.....

Now superagent working! Thanks to me :)

from superagent.