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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.234 ·

Script detection in published pages handles HTML tokenizer edge cases

Script-tag scanning in published pages was reworked so hand-crafted markup can't slip past.

Under the hood Improvements
JSON All of v2.1.234
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.234,
ImprovementsSection of the release
What

The scanners that look for script tags in artifact pages, both in-page and in the CLI, were reworked as a matching pair so hand-crafted markup can no longer slip past them.

Details
  • A comment-open followed by a script-open, which would leave the HTML tokenizer in an escaped state, is now refused outright.
  • Tag-end scanning walks attributes, so a > inside a quoted attribute value no longer looks like the end of the tag.
  • Whitespace skipping uses only the five ASCII whitespace bytes HTML defines, instead of JavaScript's broader String.trim().
Evidence

KEEP-IN-SYNC: goCp isFrameAssetInjection

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.234 →

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