message: WebGL: enable depth buffer in swap chain.
  In PR we enabled depth for all backends, but we forgot web.
  Note that this required 0 new codelines whereas Vulkan required 116
  additional codelines. :)
diff: @@ -39,7 +39,7 @@ Filament.loadClassExtensions = function() {
  majorVersion: 2,
  minorVersion: 0,
  antialias: false,
  - depth: false,
  + depth: true,
  alpha: false
  };
  options = Object.assign(defaults, options);
  