Ok tried a different solution, becouse it turns out when i use a external web url it works fine. I decided to try with this solution:
private void converter_ProvisionImage(object sender, ProvisionImageEventArgs e)
{
but even thoudh the e.Data fills with correct byte array the converter does not generate nothing.
private void converter_ProvisionImage(object sender, ProvisionImageEventArgs e)
{
// Read the image from the file system:
e.Data = File.ReadAllBytes(@"c:\inetpub\wwwroot\mysite\images\" + e.ImageUrl);
}but even thoudh the e.Data fills with correct byte array the converter does not generate nothing.