This serves the web-dev surface iFrame from another domain, such that user-created levels can't sniff cookies from a visitor to their page. It forces a redirect if a path is accesses through the wrong domain.
Use ENV variables for hostnames
Allow messages from all relevant domains
Use the right iFrame URL for different domains
Let the load balancer check /healthcheck
Add special handling for china server
Generalize subdomain handling
This heavily refactors SpellView and adds infrastructure for receiving and reporting Errors raised by the web-dev iFrame. The web-dev error system, the Aether error system, and the Ace html-worker avoid disturbing each others' errors/annotations (though currently Aether+web-dev errors won't coexist), and they clear/update their own asynchronously.
Show web-dev iFrame errors as Ace annotations
Add functional error banners (with poor messages)
Improve error banners, don't allow duplicate Problems
Refactor setAnnotations override
Convert all constructor calls for Problems
Add comments, clean up
Clean up
Don't clear things unnecessarily
Clean up error message sending from iFrame
Add web-dev:error schema
Clarify error message attributes
Refactor displaying AetherProblems
Refactor displaying user problem banners
Refactor onWebDevError
Set ace styles on updating @problems
Clean up, fix off-by-1 error
Add comment
Show stale web-dev errors differently
Some web-dev errors are generated by "stale" code — code that's still running in the iFrame but doesn't have the player's recent changes.
This shows those errors differently than if they weren't "stale", and suggests they re-run their code.
Hook up web-dev event schema
Destroy ignored duplicate problems
Functionalize a bit of stuff
Fix ProblemAlertView never loading
* Tweak API doc behavior and styling
* Instead of moving to the left during active dialogues, just move to the top
* Allow pointer events
* Adjust close button
* Re-enable pinning API docs for game-dev and web-dev levels
* Make sidebar in PlayGameDevLevelView stretch, better layout columns
* Set up content of PlayGameDevLevelView sidebar to scroll
* Add rest of PlayGameDevLevelView sidebar content, rework what loading looks like
* Finish PlayGameDevLevelView
* Add share area below
* Cover the brown background, paint it gray
* Tweak PlayGameDevLevelView
* Have progress bar show everything
* Fix Surface resize handling
* Fix PlayGameDevLevelView resizing incorrectly when playing
* Add GameDevVictoryModal to PlayGameDevLevelView
* Don't show missing-doctype annotation in Ace
* Hook up GameDevVictoryModal copy button
* Fix onChangeAnnotation runtime error
* Fix onLevelLoaded runtime error
* Have CourseVictoryModal link to /courses when course is done
* Trim, update CourseDetailsView
* Remove last vestiges of teacherMode
* Remove giant navigation buttons at top
* Quick switch to flat style
* Add analytics for game-dev
* Update Analytics events for gamedev
* Prefix event names with context
* Send to Mixpanel
* Include more properties
* Mostly set up indefinite play and autocast for game-dev levels
* Set up cast buttons and shortcut for game-dev
* Add rudimentary instructions when students play game-dev levels
* Couple tweaks
* fix a bit of code that expects frames to always stick around
* have PlayGameDevLevelView render a couple frames on load
* API Docs use 'game' instead of 'hero'
* Move tags to head without combining
* Add HTML comment-start string
Fixes missing entry point arrows
* Fix some whitespace
