Poltergeist throws JS errors when js_errors: false

Question

I have a large test suite that is using poltergeist and capybara. I keep getting the following error:

One or more errors were raised in the Javascript code on t         


        

Answer 1

I am not sure why your code doesn't work. I just had a similar JS error and did the following (as mentioned on this page (search for js_errors)) -- and basically what Leonardo Galani suggested (I upvoted Leonardo's answer to take it from -1 to 0):

require 'capybara/poltergeist'
Capybara.javascript_driver = :poltergeist

options = {js_errors: false}
Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, options)
end

I also tested this style, and it worked as well:

Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, {js_errors: false})
end

FWIW: My error (in Cucumber test) looked like this:

Capybara::Poltergeist::JavascriptError: 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: Unable to delete property.
TypeError: Unable to delete property.
    at :84
    at http://maps.gstatic.com/cat_js/maps-api-v3/api/js/17/20/%7Bmain,geometry%7D.js:19 in Ke
    at http://maps.gstatic.com/cat_js/maps-api-v3/api/js/17/20/%7Bmain,geometry%7D.js:19 in Ke
    at http://maps.gstatic.com/cat_js/maps-api-v3/api/js/17/20/%7Bmain,geometry%7D.js:18