Hi there,
I’d like to use Ganttproject Cloud in a public administration environment, which is protected by proxy.
Is there a possibility to set proxy settings? I didn’t found any possibility or I am too stupid to recognize it. If no proxy settings are possible, no access will be possible to https://ganttproject.cloud… 
We’re using Windows 10 and GP Version 3.2.3247
Thx for all helpful response in advance and have a nice weekend!
Wolkensprung
There are no proxy settings, sorry.
I have created a new enhancement request:
Hi Dmitry
Thx for your response.
Meanwhile, I found a file “C:\Program Files (x86)\GanttProject-3.2\runtime\conf\net.properties” and it looks like it should be some proxy config:
############################################################
# Default Networking Configuration File
#
# This file may contain default values for the networking system properties.
# These values are only used when the system properties are not specified
# on the command line or set programmatically.
# For now, only the various proxy settings can be configured here.
############################################################
# Whether or not the DefaultProxySelector will default to System Proxy
# settings when they do exist.
# Set it to 'true' to enable this feature and check for platform
# specific proxy settings
# Note that the system properties that do explicitly set proxies
# (like http.proxyHost) do take precedence over the system settings
# even if java.net.useSystemProxies is set to true.
java.net.useSystemProxies=false
#------------------------------------------------------------------------
# Proxy configuration for the various protocol handlers.
# DO NOT uncomment these lines if you have set java.net.useSystemProxies
# to true as the protocol specific properties will take precedence over
# system settings.
#------------------------------------------------------------------------
# HTTP Proxy settings. proxyHost is the name of the proxy server
# (e.g. proxy.mydomain.com), proxyPort is the port number to use (default
# value is 80) and nonProxyHosts is a '|' separated list of hostnames which
# should be accessed directly, ignoring the proxy server (default value is
# localhost & 127.0.0.1).
#
# http.proxyHost=
# http.proxyPort=80
http.nonProxyHosts=localhost|127.*|[::1]
#
# HTTPS Proxy Settings. proxyHost is the name of the proxy server
# (e.g. proxy.mydomain.com), proxyPort is the port number to use (default
# value is 443). The HTTPS protocol handlers uses the http nonProxyHosts list.
#
# https.proxyHost=
# https.proxyPort=443
#
# FTP Proxy settings. proxyHost is the name of the proxy server
# (e.g. proxy.mydomain.com), proxyPort is the port number to use (default
# value is 80) and nonProxyHosts is a '|' separated list of hostnames which
# should be accessed directly, ignoring the proxy server (default value is
# localhost & 127.0.0.1).
#
# ftp.proxyHost=
# ftp.proxyPort=80
ftp.nonProxyHosts=localhost|127.*|[::1]
#
# Gopher Proxy settings. proxyHost is the name of the proxy server
# (e.g. proxy.mydomain.com), proxyPort is the port number to use (default
# value is 80)
#
# gopher.proxyHost=
# gopher.proxyPort=80
#
# Socks proxy settings. socksProxyHost is the name of the proxy server
# (e.g. socks.domain.com), socksProxyPort is the port number to use
# (default value is 1080)
#
# socksProxyHost=
# socksProxyPort=1080
#
# HTTP Keep Alive settings. remainingData is the maximum amount of data
# in kilobytes that will be cleaned off the underlying socket so that it
# can be reused (default value is 512K), queuedConnections is the maximum
# number of Keep Alive connections to be on the queue for clean up (default
# value is 10).
# http.KeepAlive.remainingData=512
# http.KeepAlive.queuedConnections=10
# Authentication Scheme restrictions for HTTP and HTTPS.
#
# In some environments certain authentication schemes may be undesirable
# when proxying HTTP or HTTPS. For example, "Basic" results in effectively the
# cleartext transmission of the user's password over the physical network.
# This section describes the mechanism for disabling authentication schemes
# based on the scheme name. Disabled schemes will be treated as if they are not
# supported by the implementation.
#
# The 'jdk.http.auth.tunneling.disabledSchemes' property lists the authentication
# schemes that will be disabled when tunneling HTTPS over a proxy, HTTP CONNECT.
# The 'jdk.http.auth.proxying.disabledSchemes' property lists the authentication
# schemes that will be disabled when proxying HTTP.
#
# In both cases the property is a comma-separated list of, case-insensitive,
# authentication scheme names, as defined by their relevant RFCs. An
# implementation may, but is not required to, support common schemes whose names
# include: 'Basic', 'Digest', 'NTLM', 'Kerberos', 'Negotiate'. A scheme that
# is not known, or not supported, by the implementation is ignored.
#
# Note: This property is currently used by the JDK Reference implementation. It
# is not guaranteed to be examined and used by other implementations.
#
#jdk.http.auth.proxying.disabledSchemes=
jdk.http.auth.tunneling.disabledSchemes=Basic
#
# Transparent NTLM HTTP authentication mode on Windows. Transparent authentication
# can be used for the NTLM scheme, where the security credentials based on the
# currently logged in user's name and password can be obtained directly from the
# operating system, without prompting the user. This property has three possible
# values which regulate the behavior as shown below. Other unrecognized values
# are handled the same as 'disabled'. Note, that NTLM is not considered to be a
# strongly secure authentication scheme and care should be taken before enabling
# this mechanism.
#
# Transparent authentication never used.
#jdk.http.ntlm.transparentAuth=disabled
#
# Enabled for all hosts.
#jdk.http.ntlm.transparentAuth=allHosts
#
# Enabled for hosts that are trusted in Windows Internet settings
#jdk.http.ntlm.transparentAuth=trustedHosts
#
jdk.http.ntlm.transparentAuth=disabled
So this won’t help? Sry, the guy behind the proxy had no possibilitiy to check it out, so I’m asking you, if it make sense to investigate there…
Thx for any effort
Wolkensprung
I am not sure, because we use a third-party HTTP client. However, after reading their docs I think that they may respect system proxy settings. I would try something similar to what is described here: java - How do I set the proxy to be used by the JVM - Stack Overflow
They change the system properties in the command line arguments, but you may as well edit this file.