Open Chrome without web security; otherwise, the 'Send preset' feature will not work:
Win:
chrome.exe --user-data-dir=C:\chrome-dev-data\ --disable-web-security
Mac:
open -n "/Applications/Google Chrome.app" --args --user-data-dir="$HOME/chrome-dev-data" --disable-web-security
Linux:
chromium --user-data-dir="$HOME/chrome-dev-data" --disable-web-security
Come back here ;)
Then: Allow 'insecure content' in the website settings (to the left of the address bar).