Thanks - I will look into it after having a go to see if it does actually help me.
Re SSL: However my #1 issue at present (a single client where the content is removed from XHR requests) happens on https.
There are cheaper ways I could do the equivalent of ngrok, but ngrok looks like it will do exactly what I need to diagnose particular problems. If ngrok saves me a day a year of work and resolves problems more quickly for clients, that is worth paying low 2 digit amounts per month.
