Transgui: Connection resetting when using SSL

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What steps will reproduce the problem?
1. Set up ProxyPass Apache2 HTTPS web proxy
2. In Transgui setting enable SSL and enter Port 443
3. Connect to daemon

What is the expected output? What do you see instead?
Transgui connects, stays connected for a couple of seconds and then disconnects 
with the message "Connection reset by peer". Connecting directly over port 9091 
works fine

What version of the product are you using? On what operating system?
Transgui 5.01, Win7

Please provide any additional information below.
It might be that my Apache2 config is somehow faulty, but webgui works fine. 
Just in case, here is the interesting part of the config:
    ProxyPreserveHost On
    SSLProxyEngine Off
    ProxyRequests Off
    RewriteEngine On
    RewriteOptions Inherit

    ProxyPass /transmission http://localhost:9091/transmission
    ProxyPassReverse http://localhost:9091/transmission /transmission

    RewriteRule /transmission[/]?$ /transmission/web/ [R=permanent]
    RewriteRule /transmission/web?$ /transmission/web/ [R=permanent]

Original issue reported on code.google.com by [email protected] on 12 Aug 2014 at 6:35

[GoogleCodeExporter]

Update: if the Transgui update interval is set to more than 5 sec, the 
connection does not reset.

Original comment by [email protected] on 12 Aug 2014 at 7:01

[GoogleCodeExporter]

thank you!

Original comment by [email protected] on 24 Nov 2014 at 1:44