fixes for when browsers die

lib/assets/javascripts/flowerbox.js.coffee

@@ -19,6 +19,8 @@ Flowerbox =
   started: false
   done: false
 
+  xhrObjects: {}
+
   onQueueStateChange: ->
 
   queueRunner: (failsafe = 5) ->

lib/flowerbox.rb

@@ -63,7 +63,9 @@ module Flowerbox
         begin
           browser.close
         rescue Errno::ECONNREFUSED => e
-          puts "Browser already closed."
+          puts "Browser already closed.".foreground(:yellow)
+        rescue ::Selenium::WebDriver::Error::UnknownError => e
+          puts "Unknown browser error, pushing past it to close...".foreground(:yellow)
         end
       end
 

lib/flowerbox/result/failure_message.rb

@@ -48,7 +48,7 @@ module Flowerbox::Result
     end
 
     def first_local_stack
-      @first_local_stack ||= stack[1..-1].find do |line|
+      @first_local_stack ||= (stack[1..-1] || []).find do |line|
         !system_files.any? { |file| line[%r{\(#{file}}] }
       end || stack[1] || ''
     end

lib/flowerbox/runner/base.rb

@@ -78,6 +78,10 @@ module Flowerbox
         end
 
         @results
+      rescue ExecJS::RuntimeError => e
+        puts e.message.foreground(:red)
+
+        raise RunnerDiedError.new
       end
 
       def configured?

lib/flowerbox/runner/selenium.rb

@@ -21,7 +21,16 @@ module Flowerbox
 
       def run(sprockets, spec_files, options)
         super do
-          browser.navigate.to "http://localhost:#{server.port}/"
+          navigate = Proc.new { browser.navigate.to "http://localhost:#{server.port}/" }
+
+          begin
+            navigate.call
+          rescue ::Selenium::WebDriver::Error::UnknownError => e
+            puts "Browser communication error, reopening all browsers...".foreground(:yellow)
+            Flowerbox.cleanup!
+
+            navigate.call
+          end
 
           ensure_alive
         end

lib/flowerbox/server.rb

@@ -3,6 +3,7 @@ require 'net/http'
 require 'socket'
 require 'rack/builder'
 require 'thin'
+require 'eventmachine'
 
 module Flowerbox
   class Server