Fixed #1638: detect and automatically report unrecoverable world loading errors, plus adding better instructions for checking dev console. We can't recover yet, but having eyes on it will hopefully give us better visibility on this kind of error.

app/core/contact.coffee

@@ -1,6 +1,7 @@
 module.exports.sendContactMessage = (contactMessageObject, modal) ->
-  modal.find('.sending-indicator').show()
+  modal?.find('.sending-indicator').show()
   jqxhr = $.post '/contact', contactMessageObject, (response) ->
+    return unless modal
     modal.find('.sending-indicator').hide()
     modal.find('#contact-message').val('Thanks!')
     _.delay ->

app/lib/Angel.coffee

@@ -5,6 +5,7 @@
 World = require 'lib/world/world'
 CocoClass = require 'core/CocoClass'
 GoalManager = require 'lib/world/GoalManager'
+{sendContactMessage} = require 'core/contact'
 
 module.exports = class Angel extends CocoClass
   @nicks: ['Archer', 'Lana', 'Cyril', 'Pam', 'Cheryl', 'Woodhouse', 'Ray', 'Krieger']
@@ -30,6 +31,7 @@ module.exports = class Angel extends CocoClass
       @abortTimeoutDuration *= 10
     @initialized = false
     @running = false
+    @allLogs = []
     @hireWorker()
     @shared.angels.push @
 
@@ -44,11 +46,12 @@ module.exports = class Angel extends CocoClass
   # say: debugging stuff, usually off; log: important performance indicators, keep on
   say: (args...) -> #@log args...
   log: ->
-    # console.info.apply is undefined in IE9, CofeeScript splats invocation won't work.
+    # console.info.apply is undefined in IE9, CoffeeScript splats invocation won't work.
     # http://stackoverflow.com/questions/5472938/does-ie9-support-console-log-and-is-it-a-real-function
     message = "|#{@shared.godNick}'s #{@nick}|"
     message += " #{arg}" for arg in arguments
     console.info message
+    @allLogs.push message
 
   testWorker: =>
     return if @destroyed
@@ -86,7 +89,7 @@ module.exports = class Angel extends CocoClass
       when 'non-user-code-problem'
         Backbone.Mediator.publish 'god:non-user-code-problem', problem: event.data.problem
         if @shared.firstWorld
-          @infinitelyLooped()  # For now, this should do roughly the right thing if it happens during load.
+          @infinitelyLooped(false, true)  # For now, this should do roughly the right thing if it happens during load.
         else
           @fireWorker()
 
@@ -166,15 +169,26 @@ module.exports = class Angel extends CocoClass
     @worker.postMessage func: 'finalizePreload'
     @work.preload = false
 
-  infinitelyLooped: (escaped=false) =>
+  infinitelyLooped: (escaped=false, nonUserCodeProblem=false) =>
     @say 'On infinitely looped! Aborting?', @aborting
     return if @aborting
     problem = type: 'runtime', level: 'error', id: 'runtime_InfiniteLoop', message: 'Code never finished. It\'s either really slow or has an infinite loop.'
     problem.message = 'Escape pressed; code aborted.' if escaped
     Backbone.Mediator.publish 'god:user-code-problem', problem: problem
-    Backbone.Mediator.publish 'god:infinite-loop', firstWorld: @shared.firstWorld
+    Backbone.Mediator.publish 'god:infinite-loop', firstWorld: @shared.firstWorld, nonUserCodeProblem: nonUserCodeProblem
+    @reportLoadError() if nonUserCodeProblem
     @fireWorker()
 
+  reportLoadError: ->
+    context = email: me.get('email')
+    context.message = "Automatic Report - Unable to Load Level\nLogs:\n" + @allLogs.join('\n')
+    if $.browser
+      context.browser = "#{$.browser.platform} #{$.browser.name} #{$.browser.versionNumber}"
+    context.screenSize = "#{screen?.width ? $(window).width()} x #{screen?.height ? $(window).height()}"
+    context.subject = "Level Load Error: #{@work?.level?.name or 'Unknown Level'}"
+    context.levelSlug = @work?.level?.slug
+    sendContactMessage context unless me.isAdmin()
+
   doWork: ->
     return if @aborting
     return @say 'Not initialized for work yet.' unless @initialized

app/locale/en.coffee

@@ -291,6 +291,11 @@
     time_current: "Now:"
     time_total: "Max:"
     time_goto: "Go to:"
+    non_user_code_problem_title: "Unable to Load Level"
+    infinite_loop_title: "Infinite Loop Detected"
+    infinite_loop_description: "The initial code to build the world never finished running. It's probably either really slow or has an infinite loop. Or there might be a bug. You can either try running this code again or reset the code to the default state. If that doesn't fix it, please let us know."
+    check_dev_console: "You can also open the developer console to see what might be going wrong."
+    check_dev_console_link: "(instructions)"
     infinite_loop_try_again: "Try Again"
     infinite_loop_reset_level: "Reset Level"
     infinite_loop_comment_out: "Comment Out My Code"

app/schemas/subscriptions/god.coffee

@@ -35,6 +35,7 @@ module.exports =
 
   'god:infinite-loop': c.object {required: ['firstWorld']},
     firstWorld: {type: 'boolean'}
+    nonUserCodeProblem: {type: 'boolean'}
 
   'god:new-world-created': worldUpdatedEventSchema
 

app/templates/play/level/modal/infinite_loop.jade

@@ -1,12 +1,19 @@
 extends /templates/core/modal-base
 
 block modal-header-content
-  h3(data-i18n="play_level.infinite_loop_title") Infinite Loop Detected
+  if nonUserCodeProblem
+    h3(data-i18n="play_level.non_user_code_problem_title") Unable to Load Level
+  else
+    h3(data-i18n="play_level.infinite_loop_title") Infinite Loop Detected
 
 block modal-body-content
   .modal-body
     p(data-i18n="play_level.infinite_loop_explanation") The initial code to build the world never finished running. It's probably either really slow or has an infinite loop. Or there might be a bug. You can either try running this code again or reset the code to the default state. If that doesn't fix it, please let us know.
 
+    p
+      span.spr(data-i18n="play_level.check_dev_console") You can also open the developer console to see what might be going wrong.
+      a(href="http://webmasters.stackexchange.com/questions/8525/how-to-open-the-javascript-console-in-different-browsers/77337#77337", data-i18n="play_level.check_dev_console_instructions", target="_blank") (instructions)
+
 block modal-footer-content
   a(href='#', data-dismiss="modal", aria-hidden="true", data-i18n="play_level.infinite_loop_try_again").btn#restart-level-infinite-loop-retry-button Try Again
   a(href='#', data-dismiss="modal", aria-hidden="true", data-i18n="play_level.infinite_loop_reset_level").btn.btn-danger#restart-level-infinite-loop-confirm-button Reset Level

app/views/play/level/PlayLevelView.coffee

@@ -455,7 +455,7 @@ module.exports = class PlayLevelView extends RootView
 
   onInfiniteLoop: (e) ->
     return unless e.firstWorld
-    @openModalView new InfiniteLoopModal()
+    @openModalView new InfiniteLoopModal nonUserCodeProblem: e.nonUserCodeProblem
     application.tracker?.trackEvent 'Saw Initial Infinite Loop', category: 'Play Level', level: @level.get('name'), label: @level.get('name') unless @observing
 
   onHighlightDOM: (e) -> @highlightElement e.selector, delay: e.delay, sides: e.sides, offset: e.offset, rotation: e.rotation

app/views/play/level/modal/InfiniteLoopModal.coffee

@@ -9,3 +9,8 @@ module.exports = class InfiniteLoopModal extends ModalView
     'click #restart-level-infinite-loop-retry-button': -> Backbone.Mediator.publish 'tome:cast-spell', {}
     'click #restart-level-infinite-loop-confirm-button': -> Backbone.Mediator.publish 'level:restart', {}
     'click #restart-level-infinite-loop-comment-button': -> Backbone.Mediator.publish 'tome:comment-my-code', {}
+
+  getRenderData: ->
+    c = super()
+    c.nonUserCodeProblem = @options.nonUserCodeProblem
+    c

server/routes/contact.coffee

@@ -5,6 +5,7 @@ sendwithus = require '../sendwithus'
 async = require 'async'
 LevelSession = require '../levels/sessions/LevelSession'
 moment = require 'moment'
+hipchat = require '../hipchat'
 
 module.exports.setup = (app) ->
   app.post '/contact', (req, res) ->
@@ -65,6 +66,11 @@ createMailContext = (req, done) ->
         context.email_data.content += "\n<img src='#{req.body.screenshotURL}' />"
       done context
 
+  if /Level Load Error/.test context.email_data.subject
+    message = "#{user.get('name') or user.get('email')} saw #{context.email_data.subject} <a href=\"http://direct.codecombat.com/editor/level/#{req.body.levelSlug}\">(level editor)</a>"
+    hipchat.sendHipChatMessage message, ['tower'], color: 'red'
+
+
 fetchRecentSessions = (user, context, callback) ->
   query = creator: user.get('_id') + ''
   projection = levelID: 1, levelName: 1, changed: 1, team: 1, codeLanguage: 1, 'state.complete': 1, playtime: 1