DOM missing pieces

(*) = large amount of work

Mobile web compat

• 2d canvas
  • text APIs
  • dashing
• forms
  • <select> (https://github.com/servo/servo/issues/3551)
  • embedder widgets
• SVG (https://github.com/servo/servo/issues/12973) (*)
• window getter (https://github.com/servo/servo/pull/19904)
• document encoding (https://github.com/servo/servo/issues/6414)
• (unsure) OverrideBuiltins (https://heycam.github.io/webidl/#OverrideBuiltins)
• (unsure) Cross-origin wrappers (https://github.com/annevk/html-cross-origin-objects) (*)
• about:blank origin (https://github.com/servo/servo/issues/25607)
• javascript url handling (https://github.com/servo/servo/issues/24901)

WebXR experiences

• WebGL 2
  • teximage/texsubimage
  • compressed textures
  • vertex array objects
  • UBO indexed parameters
  • multiple render targets
  • vertex attributes
  • framebuffer/renderbuffer/texstorage
• webgl 1
  • completeness; cross-platform
  • remove dependency on GL compat mode
• OffscreenCanvas (https://github.com/servo/servo/issues/14627)
  • transferring control
  • committing
  • blobs
  • webgl offscreen canvas
• WebRTC
  • peer connections
  • ??? many other pieces
• webaudio
  • delay
  • performance optimization
  • media stream source/destination
  • cycle handling
• module scripts
  • dynamic module imports
  • worker modules
• media hardware acceleration
• dom permissions

Desktop browser equivalent

Major features:

• 2d canvas
  • path2d
  • focus
• forms
  • input type=range
  • fancy inputs: date, colour, etc.
  • native widgets
• shadow DOM
  • slots (https://github.com/servo/servo/issues/23590)
  • event retargetting (https://github.com/servo/servo/issues/23591)
• Sequential focus navigation (https://github.com/servo/servo/issues/3982)
• IndexedDB (https://github.com/servo/servo/issues/6963) (*)
• CSP (https://github.com/servo/servo/issues/4577)
  • ??? some subset is implemented
• iframe sandbox
• ReadableStream (https://github.com/servo/servo/issues/21482)
• SharedWorker (https://github.com/servo/servo/issues/7458)
• ServiceWorker (https://github.com/servo/servo/issues/11091) (*)
  • push API
  • cache API
• Selection (https://github.com/servo/servo/issues/7492)
• SharedArrayBuffer
• audit uses of DOM objects' associated realm vs. incumbent global's realm
• geolocation
• media
  • EME (*)
  • MSE
  • webvtt
• webaudio
  • script processor nodes
  • iir filter
  • wave shaper
  • convolver
  • dynamics compressor
  • periodic wave
• contenteditable (*)
• webauthn

DOM-adjacent features:

• accessibility
• multiprocess
  • media acceleration
  • webgl
  • limiting process access to cross-origin data
• network
  • TLS changes
  • fixing issues with cookies
  • persistent cache
• devtools
  • layout inspector integration
  • cleaning up network monitoring data
  • JS debugger integration
  • style editor integration
  • storage viewer
  • performance tool integration
• profile persistence
• scroll bars
• firefox accounts