Capybara::Poltergeist::JavascriptError (TypeError: undefined is not a function)

[acreilly]

Master branch is failing due to poltergeist errors. I updated the version but the errors still occur. Need some guidance.

https://travis-ci.org/boomerdigital/solidus_avatax_certified/jobs/304816095

       One or more errors were raised in the Javascript code on the page. If you don't care about these errors, you can ignore them by setting js_errors: false in your Poltergeist configuration (see documentation for details).
       TypeError: undefined is not a function (evaluating 'Object.keys(this.lineHash).find(function(key){ return this[key] === value}.bind(this.lineHash))')
       TypeError: undefined is not a function (evaluating 'Object.keys(this.lineHash).find(function(key){ return this[key] === value}.bind(this.lineHash))')```

[aldesantis]

master branch is passing now, so I'm going to close this.