Editorial: Remove an invalid structured serialization assertion - #13131

Remove the assertion that a serialized viewed buffer already has a completed buffer type. StructuredSerializeWithTransfer prepopulates memory with transfer placeholders whose Type is not initialized until after the initial serialization.

For example, serializing a Uint8Array while transferring its underlying ArrayBuffer can return such a placeholder here. The remaining algorithm already retains that record for later completion.

Spec: https://html.spec.whatwg.org/multipage/structured-data.html#structuredserializeinternal

• At least two implementers are interested (and none opposed):
  • …
  • …
• Tests are written and can be reviewed and commented upon at:
  • …
• Implementation bugs are filed:
  • Chromium: …
  • Gecko: …
  • WebKit: …
  • Deno (only for timers, structured clone, base64 utils, channel messaging, module resolution, web workers, and web storage): …
  • Node.js (only for timers, structured clone, base64 utils, channel messaging, and module resolution): …
• Corresponding HTML AAM & ARIA in HTML issues & PRs:
• MDN issue is filed: …
• The top of this comment includes a clear commit message to use.

(See WHATWG Working Mode: Changes for more details.)

/structured-data.html ( diff )