We were basically panicking when an invalid URL was given to us. There was a comment there noting this -- which means that this was probably written when it wasn't so important to handle all the cases, and more important to handle some cases so that we can test out various ideas. We're still sort of in that stage, and you may see other comments like this throughout the code :)
Earlier in this thread, someone did indeed find a bug in our image loading: https://news.ycombinator.com/item?id=12014108
We were basically panicking when an invalid URL was given to us. There was a comment there noting this -- which means that this was probably written when it wasn't so important to handle all the cases, and more important to handle some cases so that we can test out various ideas. We're still sort of in that stage, and you may see other comments like this throughout the code :)