Comment 4 for bug 1329202

Hey there,

I don't have any experience with QT, but after some googling it looks that `QUrl::toPercentEncoding()` does URL component encoding in the right way.

I checked out the full PR diff and I actually can't understand why you remove the leading '/' from the mountpoint (I read the comment above the code block, but it's a bit unclear to me). May you give any hint, please?