Deploy on Apache server by reverse proxy approach and https domain

[sanaderi]

client:535 Mixed Content: The page at 'https://example.com/payment' was loaded over HTTPS, but attempted to connect to the insecure WebSocket endpoint 'ws://example.com/_nuxt/'. This request has been blocked; this endpoint must be available over WSS.

Apache config:

ProxyPass /ws ws://localhost:3001/_nuxt/
ProxyPassReverse /ws ws://localhost:3001/_nuxt/


ProxyPass / http://localhost:3001/
ProxyPassReverse / http://localhost:3001/

how I can change it to connect by wss