How to open new incognito window with Javascript? (Google Chrome)

Question

I want to help my friend open a website in a new incognito window when he performs some mouse gestures (custom stroke in Mouse Stroke - Chrome Extension).

Answer 1

Chrome extensions with the tabs permission can use the chrome.windows.create method:

chrome.windows.create({"url": url, "incognito": true}); 

However, to access it, you'll either need to write your own extension or find an existing one which provides a suitable hook (I don't know whether this can be done with "Mouse Stroke"—I'm too scared to look).