broken when proxy server defined

[pesekon2]

If there is any proxy configuration set, the request fails. The problem is that the request URL is then being changed in owslib.sos100 with lines:

           base_url = next((m.get('url') for m in self.getOperationByName('GetObservation').methods
                            if m.get('type').lower() == method.lower()))

Probably more of an issue of OWSlib/istSOS rather than of these addons - should dive deeper to that.