From df0fce756247e9598c57354b764bdaf1ce709038 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sun, 15 Mar 2015 20:36:59 -0400
Subject: Epirts.setPublishableKey(): Validate input

---
diff --git a/epirts.js b/epirts.js
index 4bdfbfc..3db67d0 100644
--- a/epirts.js
+++ b/epirts.js
@@ -57,6 +57,12 @@ var Stripe = Epirts = (function() {
 	}());
 
 	pub.setPublishableKey = function(key) {
+		if (typeof key !== 'string') {
+			throw new Error('Invalid publishable key');
+		}
+		if (!key.match(/^pk_[A-Za-z0-9_]+/)) {
+			throw new Error('Invalid publishable key');
+		}
 		_key = key;
 	};
 
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