Board Thread:Wiki-Related Discussion/@comment-25491743-20151002171811/@comment-2153169-20151202120055

Because the town line was cursed, but that's something different. The Town line has always been cursed to prevent people from leaving Storybrooke. Look Ingrid's glace wall or that spell on the town line? It was there, cursing the town line, but there was nothing to break in SB or a curse.