disable the button as soon as it is clicked

assets/javascripts/discourse/components/stripe-card.js.es6

@@ -52,15 +52,17 @@ export default Ember.Component.extend({
     submitStripeCard() {
       let self = this;
 
+      self.set('transactionInProgress', true);
+
       this.get('stripe').createToken(this.get('card')).then(data => {
 
         self.set('result', []);
 
         if (data.error) {
           self.set('result', data.error.message);
+          self.endTranscation();
         }
         else {
-          self.set('transactionInProgress', true);
 
           let params = {
             stripeToken: data.token.id,

plugin.rb

@@ -1,6 +1,6 @@
 # name: discourse-donations
 # about: Integrating Discourse with Stripe for donations
-# version: 1.11.0
+# version: 1.11.1
 # url: https://github.com/choiceaustralia/discourse-donations
 # authors: Rimian Perkins