Proxy issue when downloading docs (but no problem loading docsets index)

[cccaballero]

Hi, using Zeal 3.1 on Ubuntu 16.04 behind a proxy, it downloads fine the docsets index, but shows an error window with the info "Error downloading http://newyork.kapeli.com/feeds/SciPy.tgz - server replied: Forbidden" when it tries to download the doc package.

[trollixx]

Maybe your proxy server requires authentication?

[cccaballero]

@trollixx yes, the proxy needs authentication and is properly configured (if not it would not download the docsets index)

[trollixx]

Does it work when you use system's proxy configuration?

[cccaballero]

With the system proxy configured (and no zeal proxy config) it shows an alert dialog saying "Host go.zealdocs.org not found"
With the system proxy and the zeal proxy configured, it throws the "forbidden" error.

[trollixx]

This is all a bit strange, I'll try to setup a test environment and with a proxy requiring authentication.

[trollixx]

I was able to reproduce the problem. Feels like a bug in Qt since SSL works via proxy if auth is disabled, and unsecured traffic works in either case.

[trollixx]

QTBUG-55960 must be the reason.