Uncaught IndexSizeError: Failed to execute 'deleteRule' on 'CSSStyleSheet': The index provided (1...

[ghost]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.18.0 x64
Electron: 1.3.15
OS: Unknown Windows version
Thrown From: steam-pirate-ui package 0.6.1

Stack Trace

Uncaught IndexSizeError: Failed to execute 'deleteRule' on 'CSSStyleSheet': The index provided (1) is larger than the maximum index (4294967295).

At C:\Users\zepey\.atom\packages\steam-pirate-ui\lib\config.coffee:39

Error: Failed to execute 'deleteRule' on 'CSSStyleSheet': The index provided (1) is larger than the maximum index (4294967295).
    at Error (native)
    at setBackgroundImage (/packages/steam-pirate-ui/lib/config.coffee:39:21)
    at /packages/steam-pirate-ui/lib/config.coffee:55:7
    at ~/AppData/Local/atom/app-1.18.0/resources/app/src/config.js:644:26
    at Function.module.exports.Emitter.simpleDispatch (~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/event-kit/lib/emitter.js:25:20)
    at Emitter.module.exports.Emitter.emit (~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/event-kit/lib/emitter.js:141:34)
    at Config.module.exports.Config.emitChangeEvent (~/AppData/Local/atom/app-1.18.0/resources/app/src/config.js:835:35)
    at Config.module.exports.Config.setRawValue (~/AppData/Local/atom/app-1.18.0/resources/app/src/config.js:621:25)
    at Config.module.exports.Config.set (~/AppData/Local/atom/app-1.18.0/resources/app/src/config.js:236:20)
    at SettingsPanel.set (~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/settings-view/lib/settings-panel.js:229:27)
    at ~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/settings-view/lib/settings-panel.js:311:24
    at Function.module.exports.Emitter.simpleDispatch (~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/event-kit/lib/emitter.js:25:20)
    at Emitter.module.exports.Emitter.emit (~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/event-kit/lib/emitter.js:141:34)
    at ~/AppData/Local/atom/app-1.18.0/resources/app/node_modules/text-buffer/lib/text-buffer.js:1442:31

Commands

     -7:47.1.0 core:save (input.hidden-input)
     -7:45.8.0 core:backspace (input.hidden-input)
  5x -7:45.1.0 core:save (input.hidden-input)
  6x -6:56.9.0 core:backspace (input.hidden-input)
  2x -6:39.7.0 core:save (input.hidden-input)
  6x -6:25.3.0 core:backspace (input.hidden-input)
  2x -6:21.9.0 core:save (input.hidden-input)
  2x -6:05.0 core:copy (input.hidden-input)
     -5:52 core:paste (input.hidden-input)
  2x -5:51.1.0 core:save (input.hidden-input)
  4x -5:44.4.0 core:copy (input.hidden-input)
     -5:34.3.0 core:paste (input.hidden-input)
  9x -5:31.2.0 core:save (input.hidden-input)
     -4:45.5.0 core:delete (input.hidden-input)
     -4:43.5.0 core:confirm (input.hidden-input)
  4x -0:08.0 core:move-left (input.hidden-input)

Non-Core Packages

atom-beautify 0.30.3 
atom-material-syntax 1.0.6 
color-picker 2.2.5 
emmet 2.4.3 
file-icons 2.1.8 
highlight-selected 0.13.1 
linter 2.2.0 
linter-ui-default 1.6.2 
loved-syntax 1.0.1 
minimap 4.28.2 
pigments 0.39.1 
pristine-ui 1.0.15 
steam-pirate-syntax 0.3.0 
steam-pirate-ui 0.6.1