Just encountered a problem with the CRON URL trigger. I have a URL with a security key parameter and an ID, and for that reason in standard format it will fail. The fix is simple, just add the URL in quotes. Yet, right now it requires me to add the URL normally and then edit the CRON job to add the quotes manually. This should be automatically.
The final command should be:
wget -o /dev/null -O /dev/null "<URL>"
right now it doesn't contain the quotes and will fail if you add parameters to your URL.