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Paul BakausandClaude Opus 4.7
11dfad81da
Sanity-check on the live-inject unwrap path turned up a real round-trip
bug on HTML files that ship a `<meta http-equiv="Content-Security-Policy"
content="..." />` tag (the leading space before `/>` is the canonical
self-closing form).
Trace:
- The tag-finder regex (`<meta\s+([^>]*?)\/?>`) captures any whitespace
between the last attribute and the closing `/>` as part of `attrs`.
- patchCspMeta did `attrs.replace(content, newContent) + ' ' + marker`,
appending the marker AFTER that captured trailing whitespace. Result:
`...content="..." data-...="..."` — a double space inside attrs and
the original space-before-slash gone.
- revertCspMeta then strips the marker via `\s*${origAttr.full}`, which
greedily eats both spaces — so the round trip leaves `"/>` with no
space, even though the original was `" />`.
Fix: split off the trailing whitespace from `attrs` before patching,
splice the marker into the attribute body with a single leading space,
and re-append the original trailing whitespace. The marker-removal
regex then consumes exactly one space and the trailing space rides
through unchanged.
Test coverage:
- New `round-trips through CSP-meta patch and revert` test in
live-inject.test.mjs covers the canonical Vite shape (CSP meta with
` />`).
- Plus a `round-trips with insertAfter` test for symmetry — the existing
suite only covered insertBefore.
- Existing 4 round-trip tests (HTML, JSX layout, multi-file, column-0)
all still pass byte-for-byte.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>