Get Chromes Console Log via Ruby Webdriver

Get chromes console log via Ruby WebDriver

Apologies for late response.

I originally achieved it by adding the following to Webdriver;

module Selenium
  module WebDriver
    class Options

      #
      # Returns the available logs for this webDriver instance
      #
      def available_log_types
        @bridge.getAvailableLogTypes
      end

      #
      # Returns the requested log
      #
      # @param type [String] The required log type
      #
      # @return [Array] An array of log entries
      #
      def get_log(type)
          @bridge.getLog(type)
      end

    end
  end
end

When "required" this resulted in the following being supported;

driver.manage.get_log(:browser)

However, Version 2.38 of the selenium ruby gem exposes the logging API (although experimental).

http://selenium.googlecode.com/git/rb/CHANGES

https://code.google.com/p/selenium/wiki/Logging

Therefore, from 2.38 onwards the following should work WITHOUT the above extension;

driver.manage.logs.get :browser

Check browser console output on Ruby

Version 2.38 of the selenium ruby gem exposes the logging API.

http://selenium.googlecode.com/git/rb/CHANGES

This allows you to access the chrome console logs.

https://code.google.com/p/selenium/wiki/Logging

Here is an example in Java but you should be able to translate easily to ruby;

java example

Enable/view console.log messages in headless Chrome

When Chrome changed to w3c mode by default (v75) it changed loggingPrefs to goog:loggingPrefs to be spec compliant. Try setting goog:loggingPrefs instead.

Cromedriver `driver.manage.logs.get(:browser)` fails on chromedriver 75.0.3770.8

Capybara 3.24 now works around this issue when used with chromedriver >= 75.0.3770.90

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