API support for http long polling

[snowinszu]

Hi, we tried to implement http long polling based on uWebSockets.js, but it is a bit complicated, it would be great if there is an API to support it, thanks.

[uNetworkingAB]

Long polling is just a request that stalls. There is nothing different from a regular request.

[uNetworkingAB]

Technically this example is long polling https://github.com/uNetworking/uWebSockets.js/blob/master/examples/AsyncFunction.js