1. Web Serial API

    Allows communication with devices via a serial interface.

  2. DOM Parsing and Serialization

    Various DOM parsing and serializing functions, specifically `DOMParser`, `XMLSerializer`, `innerHTML`, `outerHTML` and `insertAdjacentHTML`.

  3. domexception api: `domexception` is serializable

  4. element api: attachshadow: `options.serializable` parameter

  5. element api: gethtml: serializes `<` and `>` in attributes as `&lt;` and `&gt;` (see this spec issue)

  6. element api: innerhtml: serializes `<` and `>` in attributes as `&lt;` and `&gt;` (see this spec issue)

  7. element api: outerhtml: serializes `<` and `>` in attributes as `&lt;` and `&gt;` (see this spec issue)

  8. navigator api: serial

  9. ndefreadingevent api: serialnumber

  10. serial api

  11. serialport api

  12. serialport api: close

  13. serialport api: connected

  14. serialport api: `connect` event

  15. serialport api: `connect` event: bluetooth rfcomm serial ports dispatch `connect` events

  16. serialport api: `disconnect` event

  17. serialport api: `disconnect` event: bluetooth rfcomm serial ports dispatch `disconnect` events

  18. serialport api: forget

  19. serialport api: getinfo

  20. serialport api: getinfo: `bluetoothserviceclassid` return value property

  21. serialport api: getsignals

  22. serialport api: open

  23. serialport api: readable

  24. serialport api: setsignals

  25. serialport api: writable

  26. serial api: getports

  27. serial api: requestport

  28. serial api: requestport: `allowedbluetoothserviceclassids` option

  29. serial api: requestport: `filters` `bluetoothserviceclassid` property

  30. shadowroot api: gethtml: serializes `<` and `>` in attributes as `&lt;` and `&gt;` (see this spec issue)

  31. shadowroot api: innerhtml: serializes `<` and `>` in attributes as `&lt;` and `&gt;` (see this spec issue)

  32. shadowroot api: serializable

  33. usbdevice api: serialnumber

  34. workernavigator api: serial

  35. xmlserializer api

  36. xmlserializer api: serializetostring

  37. xmlserializer api: `xmlserializer()` constructor

  38. html element: iframe: allow: serial

  39. headers http header: feature-policy: serial

  40. headers http header: permissions-policy: serial

  41. javascript built-in: aggregateerror: `aggregateerror` is serializable

  42. javascript built-in: error: `error` is serializable

  43. javascript built-in: evalerror: `evalerror` is serializable

  44. javascript built-in: rangeerror: `rangeerror` is serializable

  45. javascript built-in: referenceerror: `referenceerror` is serializable

  46. javascript built-in: syntaxerror: `syntaxerror` is serializable

  47. javascript built-in: typeerror: `typeerror` is serializable

  48. javascript built-in: urierror: `urierror` is serializable