Kaoru0822andClaude Opus 5.5
24398a89e4
webpack 5 and tsc write "sourceRoot": "" for map-relative sources. Since
5f702dd6c the shared join added "/" for any non-null root, so these
sources resolved from the URL root: rxjs's ../../../src/internal/Observable.ts
under /npm/rxjs@7.8.1/dist/cjs/internal/ became /src/internal/Observable.ts,
and xterm's webpack://xterm/./src/... became https://host/webpack://xterm/....
Treat an empty root like a null root in sourceMapReference, the single join
used by trace-web-source-location, analyze-javascript-application and the
web source-map fetcher. Chrome, Firefox and trace-mapping skip an empty root,
and tc39/ecma426#183 wrote the current steps to match them. Non-empty roots,
including "/" and repeated slashes (#6726), keep their existing behavior.
Fixes #8106
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
10 KiB
Captured website source locations
trace_web_source_location maps one selected position in a script retained by
export_web_scripts through one explicitly paired local source map. The shared
CLI/MCP workflow verifies actual manifest, script and map byte identities and
returns the original position and embedded source inline. It acquires no browser,
fetches no URL and executes no application code.
rea trace-web-source-location \
/analysis/scripts/manifest.json 0 \
/analysis/app.js.map 'https://example.test/maps/app.js.map?v=7#context' \
1 25 --json
The six positional arguments select the manifest, zero-based script index, absolute map path, absolute map URL context, one-based generated line and zero-based UTF-16 column. The MCP arguments are:
{
"manifest_path": "/analysis/scripts/manifest.json",
"script_index": 0,
"source_map": {
"path": "/analysis/app.js.map",
"url": "https://example.test/maps/app.js.map?v=7#context"
},
"generated_position": { "line": 1, "column": 25 }
}
The URL supplies the context for resolving sources and sourceRoot using the
ECMA-426 URL parsing rule; it is not an instruction to fetch. Repeated path
separators remain part of the resolved URL identity. A non-empty sourc