Advanced iFrame Debug Console
there is a red bar at the bottom of my pages showing a red bar "Advanced iframe debug console".
how do I turn this off/hide?
Disable it on on the options tab.
There you also find the docu how to enable/disable it dynamically.
Yes. This is triggering it. the other option to enable it by a url parameter ?aiEDC=true/false like described in the documentation. And maybe you have added it to the shortcode: debug_js="no/bottom"