Jakob Ackermann acb7d7df5a [misc] add test cases for the validation of the callback argument ... When the user provides a function as last argument for socket.emit, socket.io will flag this as an RPC and add a cb as the last argument to the client.on('event', ...) handler on the server side. Without a function as last argument for socket.emit, the callback argument on the server side is undefined, leading to invalid function calls (`undefined()`) and an unhandled exception. The user can also provide lots of other arguments, so the 2nd/3rd ... argument is of arbitrary type, again leading to invalid function calls -- e.g. `1()`.		2020-06-09 16:30:03 +01:00
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real-time	[misc] add test cases for the validation of the callback argument	2020-06-09 16:30:03 +01:00