mod_proxy_wstunnel module must be loaded and enabled
additional load balancer for websockets is added - in the sample above it is called balancer://jiracluster-ws. This balancer is almost identical as the original one, but the protocols are changed from http to ws. After adding or removing a cluster node, it has to be added or removed from both the original and the "jiracluster-ws" load balancer configurations.
websocket requests (the ones going to
/com-spartez-support-chat/ws/) are passed to the added load balancer
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