Tweaked the subscription handler to act more like the payment handler when a card charge fails. It returns 402.

server/payments/subscription_handler.coffee

@@ -38,8 +38,11 @@ class SubscriptionHandler extends Handler
           )
         ),
       (err) =>
-        @logSubscriptionError(req, 'Stripe customer creation error. '+err)
-        return done({res: 'Database error.', code: 500})
+        if err.type in ['StripeCardError', 'StripeInvalidRequestError']
+          done({res: 'Card error', code: 402})
+        else
+          @logSubscriptionError(req, 'Stripe customer creation error. '+err)
+          return done({res: 'Database error.', code: 500})
       )
 
     else

test/server/functional/subscription.spec.coffee

@@ -95,6 +95,21 @@ describe '/db/user, editing stripe property', ->
   joeData = null
   firstSubscriptionID = null
       
+  it 'returns client error when a token fails to charge', (done) ->
+    stripe.tokens.create {
+      card: { number: '4000000000000002', exp_month: 12, exp_year: 2020, cvc: '123' }
+    }, (err, token) ->
+      stripeTokenID = token.id
+      loginJoe (joe) ->
+        joeData = joe.toObject()
+        joeData.stripe = {
+          token: stripeTokenID
+          planID: 'basic'
+        }
+        request.put {uri: userURL, json: joeData }, (err, res, body) ->
+          expect(res.statusCode).toBe(402)
+          done()
+          
   it 'creates a subscription when you put a token and plan', (done) ->
     stripe.tokens.create {
       card: { number: '4242424242424242', exp_month: 12, exp_year: 2020, cvc: '123' }