Created attachment 459567 [details] WebRTC client (WebEx App Client) UI Set proxy network, MAC Safari 15* or Safari 14* connect the proxy network, then try to launch WebRTC client (WebEx App Client), meeting is connecting always, client cannot be launched.
using 2 Proxy, all cannot work 1. using 8080 port and need password login. 2. using 3128 port, and no need password login
Created attachment 459568 [details] client log Report error: WebSocket network error: Proxy authentication scheme is not supported for WebSockets
Created attachment 459569 [details] proxy setting proxy setting
<rdar://problem/93953559>
After use Cisco common Proxy address to do proxy, this issue does not happen, so maybe proxy server setting issue. now close this issue