Braintree client: form submission failure

Question

I am totally new to braintree and was just trying out the tutorial (javascript for client and JAVA on the server side)

I created a simple HTML file basically just wrapping the "Hello Client" example. I had also tried using both the given clientToken provided in the example and one I obtained from the sandbox account.

However, after I filled out a valid credit information and tried to submit the form, I've got this error:

"There was an error processing your request. Try again"

And this error occurred BEFORE the form submission was actually sent to the server; braintree.js seems to have intercepted the submission and did some authorization with its server, and thats where the error above came from

I looked at the chrome developer console and saw the requests were like this:

Request URL:https://client-analytics.sandbox.braintreegateway.com
Params:
authorizationFingerprint: [some fp]
sharedCustomerIdentifierType:undefined
analytics[][kind]:dropin.web.inline.add-card.fail
_meta[platform]:web
_meta[platformVersion]: [some value]
_meta[integrationType]:dropin
_meta[sdkVersion]:braintree/web/2.3.3
_meta[merchantAppId]:file:///Users/jiayaohan/Desktop/card.html
braintreeLibraryVersion:braintree/web/2.3.3
_method:POST
callback:callback_json9

And the status code itself was OK (200), but in the response, the content was:

callback_json9({status:201})

Anyone knows what might go wrong with this very simple hello-world client setup? (noted that I've tried using both the given example client Token and one derived from my own sandbox account, but the same error happened)

Thanks!

Answer 1

_{I work at Braintree.}

It looks like there was a failure adding a card. Are you using the available testing card credentials?

Sandbox only accepts certain test numbers, so that could be your issue. The most commonly used test number is 4111111111111111.