Chrome Developer Tools closes instantly when attempting to debug WebDriver E2E test
Chrome isn't doing this; ChromeDriver 2 is. ChromeDriver 2 and the DevTools windows both compete for the same automation channel, and ChromeDriver automatically closes the DevTools window in order for it to work.
See https://sites.google.com/a/chromium.org/chromedriver/help/devtools-window-keeps-closing for more info
Also see the related issue: https://code.google.com/p/chromedriver/issues/detail?id=483