arcticmill/iap_verifier — pull request #1 by joshleaves (2012-11-16 01:10:25+00:00)
Title: Return error on 500 status code from Apple

Ran into this error earlier and filed an issue with the original pcrawfor/iap_verifier repo.

Since I don't speak coffee and your version was the most recent (and with a js source ready for GitHub), I preferred to fork from yours to commit a fix.