api/v1/stripe/donate fails (page blanche retournée) si la carte bleue est rejetée

[thibauld]

Stripe avait gardé en mémoire mon ancienne CB qui a expiré depuis ce qui fait ma CB a été déclinée.
Au lieu de recevoir un message d'erreur, j'ai eu le droit a une page blanche sans aucun message.

Voici le message d'erreur retourné par l'API

E, [2016-02-16T23:39:47.855170 #27421] ERROR -- : app error: Your card was declined. (Stripe::CardError)
E, [2016-02-16T23:39:47.855416 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/stripe-1.31.0/lib/stripe.rb:273:in `handle_api_error'
E, [2016-02-16T23:39:47.855464 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/stripe-1.31.0/lib/stripe.rb:152:in `rescue in request'
E, [2016-02-16T23:39:47.855497 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/stripe-1.31.0/lib/stripe.rb:138:in `request'
E, [2016-02-16T23:39:47.855517 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/stripe-1.31.0/lib/stripe/api_operations/request.rb:15:in `request'
E, [2016-02-16T23:39:47.855535 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/stripe-1.31.0/lib/stripe/api_operations/create.rb:5:in `create'
E, [2016-02-16T23:39:47.855559 #27421] ERROR -- : /home/democratech/api/api/stripe_v1.rb:55:in `block (2 levels) in <class:StripeV1>'
E, [2016-02-16T23:39:47.855579 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:47:in `call'
E, [2016-02-16T23:39:47.855597 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:47:in `block in generate_api_method'
E, [2016-02-16T23:39:47.855613 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:247:in `call'
E, [2016-02-16T23:39:47.855647 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:247:in `run'
E, [2016-02-16T23:39:47.855666 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:195:in `block in call!'
E, [2016-02-16T23:39:47.855684 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:24:in `call'
E, [2016-02-16T23:39:47.855709 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:24:in `call!'
E, [2016-02-16T23:39:47.855728 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:18:in `call'
E, [2016-02-16T23:39:47.855746 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:24:in `call!'
E, [2016-02-16T23:39:47.855763 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:18:in `call'
E, [2016-02-16T23:39:47.855786 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/error.rb:27:in `block in call!'
E, [2016-02-16T23:39:47.855806 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/error.rb:26:in `catch'
E, [2016-02-16T23:39:47.855825 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/error.rb:26:in `call!'
E, [2016-02-16T23:39:47.855842 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/middleware/base.rb:18:in `call'
E, [2016-02-16T23:39:47.855858 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-1.6.4/lib/rack/head.rb:13:in `call'
E, [2016-02-16T23:39:47.855889 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-1.6.4/lib/rack/builder.rb:153:in `call'
E, [2016-02-16T23:39:47.855908 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:196:in `call!'
E, [2016-02-16T23:39:47.855931 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/endpoint.rb:184:in `call'
E, [2016-02-16T23:39:47.855961 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-mount-0.8.3/lib/rack/mount/route_set.rb:152:in `block in call'
E, [2016-02-16T23:39:47.855980 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-mount-0.8.3/lib/rack/mount/code_generation.rb:96:in `block in recognize'
E, [2016-02-16T23:39:47.855997 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-mount-0.8.3/lib/rack/mount/code_generation.rb:96:in `optimized_each'
E, [2016-02-16T23:39:47.856013 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-mount-0.8.3/lib/rack/mount/code_generation.rb:95:in `recognize'
E, [2016-02-16T23:39:47.856034 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-mount-0.8.3/lib/rack/mount/route_set.rb:141:in `call'
E, [2016-02-16T23:39:47.856054 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/api.rb:98:in `call'
E, [2016-02-16T23:39:47.856071 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/api.rb:33:in `call!'
E, [2016-02-16T23:39:47.856087 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/grape-0.12.0/lib/grape/api.rb:29:in `call'
E, [2016-02-16T23:39:47.856115 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/rack-cors-0.4.0/lib/rack/cors.rb:80:in `call'
E, [2016-02-16T23:39:47.856142 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/unicorn-4.7.0/lib/unicorn/http_server.rb:580:in `process_client'
E, [2016-02-16T23:39:47.856159 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/unicorn-4.7.0/lib/unicorn/http_server.rb:660:in `worker_loop'
E, [2016-02-16T23:39:47.856175 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/unicorn-4.7.0/lib/unicorn/http_server.rb:527:in `spawn_missing_workers'
E, [2016-02-16T23:39:47.856191 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/unicorn-4.7.0/lib/unicorn/http_server.rb:153:in `start'
E, [2016-02-16T23:39:47.856215 #27421] ERROR -- : /var/lib/gems/2.0.0/gems/unicorn-4.7.0/bin/unicorn:126:in `<top (required)>'
E, [2016-02-16T23:39:47.856232 #27421] ERROR -- : /usr/local/bin/unicorn:23:in `load'
E, [2016-02-16T23:39:47.856248 #27421] ERROR -- : /usr/local/bin/unicorn:23:in `<main>'