- NG Firewall firmware versions 4.2.x, 5.0.x, 5.2.x
- netfence firmware versions 4.2.x
The configured "Custom Template Logo" in the "HTTP-Proxy Settings" > "Content Inspection" > "Progress Popup" is configured but the image will not be displayed in the progress popup.
The image will be downloaded from the browser and to locate the image on the proxy server, the "Visible Hostname" of the HTTP proxy must be resolvable via DNS for the client. The proxy service does to a local redirect for all requests, which are pointed to the visible hostname and this way the image on the local HTTP server (listen only in 127.0.0.1:80) may be found.
Add the configured "Visible Hostname" of the HTTP proxy service to your DNS server and make it resolvable for the clients.