[Pharo-users] Problem with ZnWebSocket and closed connections

Sven Van Caekenberghe sven at stfx.eu
Thu Feb 20 17:19:33 EST 2020


Hi Davide,

I am away until next week, then I might try to answer, though you are talking about a complicated setup.

Sven

> On 20 Feb 2020, at 19:08, Davide Varvello via Pharo-users <pharo-users at lists.pharo.org> wrote:
> 
> 
> From: Davide Varvello <varvello at yahoo.com>
> Subject: Problem with ZnWebSocket and closed connections
> Date: 20 February 2020 at 19:08:43 GMT+1
> To: pharo-users at lists.pharo.org
> 
> 
> Hi guys!
> I've a problem with websockets, I'm quite a noob on the subject and I'm
> doing some tests with them.
> 
> I run the echo websocket this way:
> 
> ZnServer startDefaultOn: 8000.
> ZnServer default delegate: (ZnWebSocketDelegate handler:
> ZnWebSocketEchoHandler new).
> 
> 
> I tested it with with the chrome extension
> (https://chrome.google.com/webstore/detail/simple-websocket-client/pfdhoblngboilpfeibdedpjgfnlcodoo)
> that emulates a websocket client. If I point to the url ws://localhost:8000
> everyting is fine
> BUT
> I want to test the websocket server via ngrok (https://ngrok.com/) and if I
> point the client to the ngrok url (i.e. ws://myurl.ngrok.io that maps
> localhost:8000) it happens a connection-closed after a while and I can't
> understand the cause, is there a timeout somewhere?
> 
> I know that it is something related to Pharo (and not to ngrok) because if I
> implement a simple echo websocket served via websocketd
> (http://websocketd.com) the connection stays always active even if through
> ngrok.
> 
> Can you help me please?
> TIA
> Davide
> 
> 
> 
> 
> --
> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
> 
> 
> 




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