Maximal number of concurrent connections per proxy server for WebSocket requests

Setting the policy specifies the maximal number of simultaneous connections per proxy server for WebSocket requests. To modify non-WebSocket request limits, see MaxConnectionsPerProxy. Leaving the policy unset means a default of 128 is used. Some web apps are known to consume many connections with hanging GETs, so setting a value below 128 may lead to browser networking hangs if there are too many web apps with hanging connections open. Some proxy servers can't handle a high number of concurrent connections per client, which is solved by setting this policy to a lower value. The value should be equal to or higher than 6. Setting a value below that limit will cause 6 to be used. Lower below the default (128) at your own risk. The value should be equal to or lower than 256. Setting a value above that limit will cause 256 to be used. Raise above the default (128) at your own risk.