affected-fewarea-signalrblockedenhancementfeature-client-javafeature-client-javascriptfeature-client-nethelp wantedseverity-minor
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説明
Using a client-side cursor (e.g. lastId processed); for a reconnect this wants to be passed back to the server in the query string (as cors doesn't allow custom headers and cors is always applicable to websockets).
However while signalR.HubConnectionBuilder() provides easy construction of the connection; the url cannot be changed after building.
This means if the connection disconnects and you need to pass a cursor (e.g. id); the connection has to be rebuilt and all the events re-registered to the new connection.
It would be easier if the url could be updated and only .start needed to be called again.