[Interest] Strange QWebSocket/QTcpServer interaction... Bug in Firefox?

Guido Seifert wargand at gmx.de
Sun Dec 21 20:40:54 CET 2014

Friend helped me so I can now say this problem also does not
happen with Safari on iPhone.

Question is how to workaround this problem? 


Guido Seifert <wargand at gmx.de> wrote:

> Hiya,
> I have here a very strange phenomena. 
> I have a QTcpServer, which listens to my address at port 20203.
> When I connect with Firefox to this port, a newConnection signal 
> is emitted. So far so good. I send my Firefox a html page. Means
> I wrote a simple Http-Server. As soon as I sent this page, I 
> close this socket. I don't need it anymore. 
> At the same time a QWebSocketServer listens at the same address at port
> 20202. When the Firefox get my html page, it interprets its javascript
> an opens a websocket. So far, so good. Everything works as expected.
> I can send and receive data through the websocket the QWebSocketServer
> gave me. All communication should be done via this websocket.
> Now the problem... Whenever the html page sends a string through the websocket's
> send function, it arrives correctly at my QWebSocket at Qt Http-Server side.
> However, each time my QTcpServer also fires and gives me another QTcpSocket.
> Nothing ever comes through this new QTcpSocket... but it is there and a 
> memory leak.
> Anyone seen this behaviour?  I am a bit reluctant to call this a Qt bug. 
> I have seen this behaviour reproducible with different Firefoxes, but never 
> with Chrome. At the moment I don't have more browsers to test.
> Guido
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