>They all had good features, but none had all of my desired features.
Many intercepting proxies like The Fiddler with FiddlerScript and the Burp Suite through Burp Extender can be extended to have any feature you want by writing your own code or leveraging someone else's. Personally the only time I've found myself thinking I might need nginx for a debugging proxy is when I need scale. I'd rather use something that's close enough, write stuff where I need to, then focus on doing really cool things with them like finding vulnerabilities for fun and profit.
Many intercepting proxies like The Fiddler with FiddlerScript and the Burp Suite through Burp Extender can be extended to have any feature you want by writing your own code or leveraging someone else's. Personally the only time I've found myself thinking I might need nginx for a debugging proxy is when I need scale. I'd rather use something that's close enough, write stuff where I need to, then focus on doing really cool things with them like finding vulnerabilities for fun and profit.