cannot open menu in frameless window when devtools are not open

[catdad]

This only seems to happen when the window is also maximized.

[menu-isomorphic] TypeError: Error processing argument at index 1, conversion failure from 1257.2000732421875
[menu-isomorphic]     at Menu.popup (C:\Workspace\github\raw-viewer\node_modules\electron\dist\resources\electron.asar\browser\api\menu.js:77:8)
[menu-isomorphic]     at Object.openContext (C:\Workspace\github\raw-viewer\lib\menu.js:99:12)
[menu-isomorphic]     at EventEmitter.<anonymous> (C:\Workspace\github\raw-viewer\lib\isomorphic.js:45:52)
[menu-isomorphic]     at EventEmitter.emit (events.js:194:13)
[menu-isomorphic]     at WebContents.<anonymous> (C:\Workspace\github\raw-viewer\node_modules\electron\dist\resources\electron.asar\browser\api\web-contents.js:390:13)
[menu-isomorphic]     at WebContents.emit (events.js:194:13)

C:\Workspace\github\raw-viewer\lib\log.js:38 [frame] frameless app menu error Error: Error processing argument at index 1, conversion failure from 1257.2000732421875
[frame]     at EventEmitter.<anonymous> (C:\Workspace\github\raw-viewer\lib\isomorphic.js:63:23)
[frame]     at Object.onceWrapper (events.js:282:20)
[frame]     at EventEmitter.emit (events.js:194:13)