Titanium Android remote image not shown.

I have a mobile application that I mostly tested with the iOS simulator and where I already got all functionality working. Now I want to have the app also bugfree on Android. One of the issues I'm facing right now is that the remote images are not shown anymore (while they were on iOS). The url from the remote images can is retrieved from the server and should be correct, as I see the images on iOS. This is one of the image urls:

http://elgg.masaer.com/mod/profile/icondirect.php?joindate=1426024336&guid=47&size=large

This is the code I use to show the image:

var profilePic = Titanium.UI.createImageView({
        image: post.User.avatar,
        width: '60px',
        height: '60px',
        borderRadius: 5
    });

Does anybody know what could be the issue. Maybe it is because the url doesn't really have an extension of the image file? Thanks in advance!