Browser Feature Requirements
    
      - animation
 
      - arrow
 
      - audio
 
      - audioloop
 
      - audiopreload
 
      - backgroundsize
 
      - bgpositionshorthand
 
      - bgpositionxy
 
      - bgrepeatspace
 
      - bgrepeatround
 
      - bgsizecover
 
      - borderradius
 
      - boxshadow
 
      - boxsizing
 
      - canvas
 
      - classlist
 
      - cookies
 
      - cssanimations
 
      - csstransforms
 
      - csstransitions
 
      - es5
 
      - es5array
 
      - es5date
 
      - es5function
 
      - es5object
 
      - es5string
 
      - es5syntax
 
      - es6array
 
      - es6collections
 
      - es6math
 
      - es6number
 
      - es6object
 
      - es6string
 
      - fetch
 
      - flexbox
 
      - generators
 
      - inlinesvg
 
      - json
 
      - opacity
 
      - promises
 
      - scriptasync
 
      - scriptdefer
 
      - strictmode
 
      - svg
 
      - svgfilters
 
      - video
 
      - webaudio
 
      - webgl
 
      - setclasses
 
    
    The "Browser feature requirements" are all green.
    
      If you are seeing all green, this means this browser is supported. You
      should be able to play the game without any issue with your current
      browser. And, any issues you encountered can be reported and we will fix
      it when possible.
    
    The "Browser feature requirements" has some red text.
    
      If you are seeing some red, this means this browser is not supported. You
      might encounter some problems while playing the game. Although we won't
      stop you, we highly suggest to get the latest mainstream browser to
      prevent any bad experiences. We will not fix issues with unsupported
      browsers.