Monkey Patching Selenium's Firefox Timeout Condition in Watir-Webdriver

patch_firefox_timeouts.rb

if WEBDRIVER && BROWSER_TYPE == :firefox

  module Selenium
    module WebDriver
      module SearchContext

        def find_element(*args)
          how, what = extract_args(args)

          unless by = FINDERS[how.to_sym]
            raise ArgumentError, "cannot find element by #{how.inspect}"
          end

          bridge.find_element_by by, what.to_s, ref
        rescue Selenium::WebDriver::Error::InvalidSelectorError => e
          e.message =~ /nsIDOMXPathEvaluator.createNSResolver/ ? retry : raise
        end

        def find_elements(*args)
          how, what = extract_args(args)

          unless by = FINDERS[how.to_sym]
            raise ArgumentError, "cannot find elements by #{how.inspect}"
          end

          bridge.find_elements_by by, what.to_s, ref
        rescue Selenium::WebDriver::Error::InvalidSelectorError => e
          e.message =~ /nsIDOMXPathEvaluator.createNSResolver/ ? retry : raise
        end

      end
    end
  end

end

Selenium Issue 2099 StackTrace.txt

The given selector ".//h1 is either invalid or does not resultin a Webelement. The following error occurred:
      [InvalidSelectorError] Unable to locate elements with the xpath expression .//h1 because of the following error:
      [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIDOMXPathEvaluator.createNSResolver]"  nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)"  location: "JS frame :: resource://fxdriver/modules/atoms.js :: <TOP_LEVEL> :: line 2360"  data: no] (Selenium::WebDriver::Error::InvalidSelectorError)