【bug】If the backend proxy service uses single sign-on, it will not be able to proxy this service correctly.

[liminghua999]

For example, if the backend proxy service is Jenkins, and Jenkins uses Keycloak for unified login,
the browser will exhibit the following mutual redirection between the two services:

• 1. When accessing the proxy Jenkins, it will automatically redirect to the internal Keycloak login address.
• 2. After completing login on Keycloak, it will automatically redirect to the configured internal Jenkins address.