Rename raise_errors -> js_errors

Resolves an ambiguity

README.md

@@ -158,7 +158,7 @@ end
     when communicating with PhantomJS. `nil` means wait forever. Default
     is 30.
 *   `:inspector` (Boolean, String) - See 'Remote Debugging', above.
-*   `:raise_errors` (Boolean) - When false, Javascript errors do not get re-raised in Ruby.
+*   `:js_errors` (Boolean) - When false, Javascript errors do not get re-raised in Ruby.
 
 ## Bugs ##
 
@@ -186,7 +186,7 @@ makes debugging easier). Running `rake autocompile` will watch the
 
 #### Features ####
 
-*   Added an option ":raise_errors", allowing poltergeist to continue
+*   Added an option ":js_errors", allowing poltergeist to continue
     running after JS errors. (John Griffin & Tom Stuart) [Issue #62] [Issue #69]
 
 ### 0.6.0 ###

lib/capybara/poltergeist/browser.rb

@@ -2,13 +2,13 @@ require 'multi_json'
 
 module Capybara::Poltergeist
   class Browser
-    attr_reader :server, :client, :logger, :raise_errors
+    attr_reader :server, :client, :logger, :js_errors
 
-    def initialize(server, client, logger = nil, raise_errors = true)
+    def initialize(server, client, logger = nil, js_errors = true)
       @server = server
       @client = client
       @logger = logger
-      @raise_errors = raise_errors
+      @js_errors = js_errors
     end
 
     def restart
@@ -125,7 +125,7 @@ module Capybara::Poltergeist
       if json['error']
         if json['error']['name'] == 'Poltergeist.JavascriptError'
           error = JavascriptError.new(json['error'])
-          if raise_errors
+          if js_errors
             raise error
           else
             log error

lib/capybara/poltergeist/driver.rb

@@ -17,7 +17,7 @@ module Capybara::Poltergeist
     end
 
     def browser
-      @browser ||= Browser.new(server, client, logger, raise_errors)
+      @browser ||= Browser.new(server, client, logger, js_errors)
     end
 
     def inspector
@@ -58,8 +58,8 @@ module Capybara::Poltergeist
       options[:logger] || (options[:debug] && STDERR)
     end
 
-    def raise_errors
-      options.fetch(:raise_errors, true)
+    def js_errors
+      options.fetch(:js_errors, true)
     end
 
     def visit(path)

spec/integration/driver_spec.rb

@@ -162,7 +162,7 @@ module Capybara::Poltergeist
       end
 
       it "doesn't propagate a Javascript error to ruby if error raising disabled" do
-        driver = Capybara::Poltergeist::Driver.new(nil, :raise_errors => false)
+        driver = Capybara::Poltergeist::Driver.new(nil, :js_errors => false)
         driver.execute_script "setTimeout(function() { omg }, 0)"
         sleep 0.01
         expect { driver.execute_script "" }.to_not raise_error(JavascriptError)