iconUrl parameter isn't working

When I’m trying to build package for windows with iconUrl property(like documentation says) it fails by trying to retrieve file from default location. Seems like there is no check for specific icon - source.

Output:

➜  pomodoro git:(master)  npm run package

> pomodoro@2.0.0 package /Users/g07cha/Projects/pomodoro
> build -w

Skip app dependencies rebuild because dev and app dependencies are not separated
Error: ENOENT: no such file or directory, open '/Users/g07cha/Projects/pomodoro/build/icon.ico'
    at Error (native)
From previous event:
    at /Users/g07cha/Projects/pomodoro/node_modules/electron-builder/src/winPackager.ts:126:24
    at undefined.next (native)
From previous event:
    at tsAwaiter (/Users/g07cha/Projects/pomodoro/node_modules/electron-builder/src/awaiter.ts:10:47)
    at Object.build (/Users/g07cha/Projects/pomodoro/node_modules/electron-builder/src/builder.ts:182:52)
    at Object.<anonymous> (/Users/g07cha/Projects/pomodoro/node_modules/electron-builder/src/build-cli.ts:8:28)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:456:32)
    at tryModuleLoad (module.js:415:12)
    at Function.Module._load (module.js:407:3)
    at Function.Module.runMain (module.js:575:10)
    at startup (node.js:160:18)
    at node.js:445:3

Part of “package.json” file, you could see whole file here

"build": {
    "productName": "Pomodoro",
    "app-bundle-id": "com.g07cha.pomodoro",
    "app-category-type": "public.app-category.productivity",
    "osx": {
      "background": "build/background.png",
      "icon": "build/icon.icns",
      "contents": [
        {
          "x": 320,
          "y": 250,
          "type": "link",
          "path": "/Applications"
        },
        {
          "x": 70,
          "y": 250,
          "type": "file"
        }
      ]
    },
    "win": {
      "iconUrl": "https://github.com/G07cha/pomodoro/blob/master/icons/icon.ico?raw=true"
    }

[develar]

@dmdewey Squirrel.windows is deprecated, please use NSIS. #529 is ready to close.

Thanks for you investigation and comment.

is intended behavior or that very many people have noticed this strange quirk,

A lot of people can ask only WTF when iconUrl is required to be http link. It is one of the reasons why Squirrel.Windows is deprecated and NSIS will be default target for windows soon.

[G07cha]

@develar oh, now I understand how it works, thank you, but again, I think we need to specify it in documentation.