Real-time Web Applications Transport Methods: Ajax Polling, Ajax Long-Polling, HTML5 Server-Sent Events (SSE) EventSource, HTML5 WebSockets.

Firefox have 35 URLs

Firefox URLs

  1. about:
  2. about:about
  3. about:accounts
  4. about:addons
  5. about:antplayer
  6. about:app-manager
  7. about:buildconfig
  8. about:cache
  9. about:config
  10. about:crashes
  11. about:credits
  12. about:customizing
  13. about:downloads
  14. about:healthreport
  15. about:home
  16. about:license
  17. about:logo
  18. about:memory
  19. about:mozilla
  20. about:networking
  21. about:newtab
  22. about:permissions
  23. about:plugins
  24. about:preferences
  25. about:privatebrowsing
  26. about:rights
  27. about:robots
  28. about:sessionrestore
  29. about:support
  30. about:sync-log
  31. about:sync-progress
  32. about:sync-tabs
  33. about:telemetry
  34. about:webrtc
  35. about:welcomeback

Chrome have 54 URLs

Chrome URLs

  1. chrome://accessibility
  2. chrome://appcache-internals
  3. chrome://apps
  4. chrome://blob-internals
  5. chrome://bookmarks
  6. chrome://cache
  7. chrome://chrome
  8. chrome://chrome-urls
  9. chrome://components
  10. chrome://crashes
  11. chrome://credits
  12. chrome://devices
  13. chrome://dns
  14. chrome://downloads
  15. chrome://extensions
  16. chrome://flags
  17. chrome://flash
  18. chrome://gcm-internals
  19. chrome://gpu
  20. chrome://help
  21. chrome://histograms
  22. chrome://history
  23. chrome://indexeddb-internals
  24. chrome://inspect
  25. chrome://invalidations
  26. chrome://ipc
  27. chrome://media-internals
  28. chrome://memory
  29. chrome://memory-internals
  30. chrome://nacl
  31. chrome://net-internals
  32. chrome://newtab
  33. chrome://omnibox
  34. chrome://password-manager-internals
  35. chrome://plugins
  36. chrome://policy
  37. chrome://predictors
  38. chrome://print
  39. chrome://profiler
  40. chrome://quota-internals
  41. chrome://serviceworker-internals
  42. chrome://settings
  43. chrome://signin-internals
  44. chrome://stats
  45. chrome://sync-internals
  46. chrome://system
  47. chrome://terms
  48. chrome://tracing
  49. chrome://translate-internals
  50. chrome://user-actions
  51. chrome://version
  52. chrome://view-http-cache
  53. chrome://webrtc-internals
  54. chrome://webrtc-logs

standard post
MicroPython: Python for Microcontrollers

MicroPython is a lean and fast implementation of the Python 3 programming language that is optimised to run on a microcontroller. The Micro Python board is a small electronic circuit board that runs the Micro Python language.