Secured WebSocket connection not working in FireFox and Chrome in MAC OS?

I am having two applications one in server and another one is client application. In server I am creating webSocket and in client I am creating we webSocket client.

Here I am getting Error (FireFox and Chrome) while creating webSocket client (in safari it is working fine).

I followed HTTPS configuration step which is in the link

 WebSocket connection to 'wss://localhost:8443/ws/v1/user/userId=user1'

failed: Error in connection establishment:net::ERR_CERT_COMMON_NAME_INVALID

connect @   web-socket.ts:53    setTimeout  @   web-socket.ts:86push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask    @   zone.js:421push../node_modules/zone.js/dist/zone.js.Zone.runTask   @   zone.js:188push../node_modules/zone.js/dist/zone.js.ZoneTask.invokeTask    @   zone.js:496ZoneTask.invoke @   zone.js:485timer