We've seen some machines with PAC configuration where the url to the PAC file
is of the form:
file://\\servername\path\to\file.pac
These can't be read because the backslashes are probably not supported by
windows.
Since it's difficult to have control over the machines where the software is
installed, any change of being resilient to this configuration error by
replacing all backslashes with forward slashes in the PAC url?