Is there a way to load images into a WebGL app?

I need to let the user select an image they have taken with their phone and load it into a Web GL app. I thought this would be a simple task but with Web GL the WWW-class seems to not be able to load from the local harddrive. So I thought maybe they could upload their image to dropbox or something and access the url using WWW. This works fine in editor but not with a compiled Web GL app. [Because reasons][1] Is there *any* way that I can have a user load images into a WebGL app??? [1]: http://docs.unity3d.com/Manual/webgl-networking.html