Ah! Can you confirm if that occurs only when there isn't a hashtag in the URL? For example, I get the error at http://dev2c.guggenheim.org/guggenheim-foundation/collaborations/map, but not at http://dev2c.guggenheim.org/guggenheim-foundation/collaborations/map#perspectives. 

if so, looks like a `if (urlHash) {... }` might be needed.