How do you pop the dev tools up on that window? I tried but can't (same thoughts as you, without verifying it myself, not gonna sign in...) Hitting F12 or Ctr

How do you pop the dev tools up on that window? I tried but can't (same thoughts as you, without verifying it myself, not gonna sign in...) Hitting F12 or Ctrl+Shift+C on the popup page do nothing. EDIT: chrome on linux Version 59.0.3071.86 (Official Build) (64-bit)