How to get Latest Chrome (Version 55) to allow mixed content?
Following a tip by Zig Mandel, I used command line parameters to run Chrome without security.
I created a folder called c:\_chrome_data
and I unpacked my developer extension into chrome extensions and I used this command line.
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --allow-running-insecure-content --disable-web-security --user-data-dir=C:\_chrome_data
Click the Shield, I noticed that the shield is not available in Version 55 of chrome anymore unless you have the settings listed in the command line included.
Working Extension