Can't succeed in making transparent window in Electron (javascript)

Question

I am trying to make a transparent window with ElectronJs but I obtain a black background.

I am on Linux (Debian Jessie)

I have tried different versions : lat

Answer 1

if any one getting this error with new version you have disable or undocked developer tools then you will be able to succeed with transparent window

win.webContents.openDevTools({mode:'undocked'})