Shields: [TwitterFollow] TypeError: Cannot read property 'followers_count' of undefined

[sentry-io[bot]]

Sentry Issue: SHIELDS-2V

TypeError: Cannot read property 'followers_count' of undefined
  File "/home/m/shields/services/twitter/twitter.service.js", line 124, in TwitterFollow.handle
    return this.constructor.render({ user, followers: data[0].followers_count })
  ?, in null.<anonymous>

[PyvesB]

I've managed to reproduce this error when using only spaces in the Twitter user name. In that case, an error response similar to the following is returned by the API:
{"headers":{"status":400,"message":"exactly one of user_ids or screen_names required, neither provided"}}

However, our badge is expecting a list of elements, hence the error. Will provide a fix.

[paulmelnikow]

Last seen Aug 12 👍