Pages with large amount of connections fail to load when using SSL and Proxy in Qt Webkit Browser

A page (with ~50 connections) fails to load in Qt Webkit Browser (both Windows and Linux) with some proxies and SSL while it works with IE, Safari and Firefox.

In Qt Webkit Browser:

• When SSL is off (proxy is on) the page loads as expected
• When proxy is off (SSL on) the page loads as expected
• When reducing the number of connections (by loading the SSL certificate inside into the machine) the page sometimes loads but not always
• When proxy and SSL on, the page "hangs"

The problem seems related to the number of connections required by the page. Pages with fewer connections are loading fine with same proxy setup and SSL.

Proxy Squid - Proxy on Apache server

Problem may come from QNetworkAccessManager

More information needed...