Update websocket url to use dynamic host rather than fixed
Update websocket url to use dynamic host rather than fixed


Former-commit-id: f04b7d503048424669a9d139ce67b11c277435ad
Former-commit-id: 3e4a3612aa6a7173b17b02119663a1833b285469
Former-commit-id: 558d23de277ed4c459fc917f6574e97f528e0a7c
ONSdigital/florence,ONSdigital/florence,ONSdigital/florence,ONSdigital/florence