Hi Aderson,
Using the same method of determining the site url for images on my site, i.e.
string lUrl = Request.Url.Scheme + "://" + Request.Url.Host;
Now I have another strange behaviour. One image is using https but I haven't installed SSL yet.
All the other images I've checked are using http.
It's not actually a problem as the image still displays. I plan to install SSL soon so I'll see what happens then.
Just strange behaviour to me.
Steve