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Lirian SuandClaude Opus 4.7
69b7965446
`injectInterceptor` used `String.prototype.replace(target, replacement)` to inject the runtime `<script>` before `</head>`. The replacement string is a substitution template — `$&` expands to the matched substring, and the minified runtime IIFE contains legitimate `$&` sequences (e.g. `if(te&&$&!y.hasAttribute(...))`), so every `$&` in the body was silently rewritten to `</head>`, producing `Unexpected token '<'` SyntaxErrors and breaking every timeline in the bundle. Switch to the function-replacer form so the runtime body is passed through verbatim. Add a regression test that diffs the bundled runtime body against `getHyperframeRuntimeScript()` and asserts only one `</head>` survives in the document — the test exercises the `<head>`-present injection path (the only branch that uses the substitution template; the no-`<head>` fallback uses slice+concat and was unaffected). Only the bundler is affected — `producer/fileServer.ts` already uses the function form via `injectScriptsIntoHtml` in `htmlDocument.ts`, so render output was correct. Snapshot, preview, studio, layout, and validate all consume `bundleToSingleHtml` and were broken before this fix. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>