trap_exists and cowboy ws

[Loïc Hoguin]

Hey,

It's expected because connection processes also act as supervisors, but 
there's no reason it should trap exits once the connection has switched 
to Websocket. Please open a ticket or PR to make the connection switch 
back to NOT trapping exits when switching to Websocket.

Cheers,

On 14/07/2021 16:30, Roberto Ostinelli wrote:
> All,
> I'm experiencing a situation where a process spawned after a cowboy 
> websocket handler upgrade request in init/2 has the process flag 
> trap_exit set to true, without me doing anything to set it.
> 
> This happens in Elixir, not sure if this is related.
> 
> def websocket_init(_state) do
>      Logger.info("was trapping? #{Process.flag(:trap_exit, true)}")
> 
> => this prints "was trapping? true"
> 
> Is this expected behaviour?
> 
> Thank you,
> r.

-- 
Loïc Hoguin
https://ninenines.eu