Testing the PDF locally, the connection failed when accessing the service.

[zhoumengbo]

The following attempts were made:
a. Tested using curl -x http://127.0.0.1:7890 http://example.com to prove that there is no problem with the host proxy
b. Used global mode to access the Internet scientifically, the result was the same as the above error
c. Changed the proxy address from 127.0.0.1 to host.docker.internal, the result was the same as the above error
d. Added proxy settings to each container in the docker-compose file, showing that it could not connect to the proxy, but the host connected to the address normally: