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feat: support renamed ignoreList field in source maps #550

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feat: support renamed ignoreList field in source maps #550

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d27d699
fix: forward sourceMapUrl in BasicSourceMapConsumer.fromSourceMap
def-Param Oct 29, 2026
752fe21
feat: support renamed ignoreList field in source maps
def-Param Oct 29, 2026
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -240,7 +240,7 @@ following attributes:

- `file`: Optional. The generated filename this source map is associated with.

- `x_google_ignoreList`: Optional. An additional extension field which is an array
- `ignoreList` (or `x_google_ignoreList`): Optional. An additional extension field which is an array
of indices refering to urls in the sources array. This is used to identify third-party
sources, that the developer might want to avoid when debugging. [Read more](https://developer.chrome.com/articles/x-google-ignore-list/)

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11 changes: 6 additions & 5 deletions lib/source-map-consumer.js
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Expand Up @@ -187,10 +187,10 @@ class BasicSourceMapConsumer extends SourceMapConsumer {
const sourcesContent = util.getArg(sourceMap, "sourcesContent", null);
const mappings = util.getArg(sourceMap, "mappings");
const file = util.getArg(sourceMap, "file", null);
const x_google_ignoreList = util.getArg(
const ignoreList = util.getArg(
sourceMap,
"x_google_ignoreList",
null
"ignoreList",
util.getArg(sourceMap, "x_google_ignoreList", null)
);

// Once again, Sass deviates from the spec and supplies the version as a
Expand Down Expand Up @@ -220,7 +220,8 @@ class BasicSourceMapConsumer extends SourceMapConsumer {
that._mappings = mappings;
that._sourceMapURL = aSourceMapURL;
that.file = file;
that.x_google_ignoreList = x_google_ignoreList;
that.ignoreList = ignoreList;
that.x_google_ignoreList = ignoreList;

that._computedColumnSpans = false;
that._wasmMappings = null;
Expand Down Expand Up @@ -283,7 +284,7 @@ class BasicSourceMapConsumer extends SourceMapConsumer {
* @returns BasicSourceMapConsumer
*/
static fromSourceMap(aSourceMap, aSourceMapURL) {
return new BasicSourceMapConsumer(aSourceMap.toString());
return new BasicSourceMapConsumer(aSourceMap.toString(), aSourceMapURL);
}

get sources() {
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