try to edit package.json as follow:
{
"name": "name",
"description": "description",
"version": "0.1",
"main": "https://path-to-intranet-site/",
"node-remote": "https://path-to-intranet-site",
"webkit": {
"page-cache":false
},
"window": {
"show": true,
"toolbar": true,
"frame": true,
"position": "center",
"width": 800,
"height": 600,
"min_width": 220,
"min_height": 220
}
}