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Fix inline source-map support with charset in the data url #65

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Fix inline source-map support with charset in the data url #65

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5 changes: 2 additions & 3 deletions source-map-support.js
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Original file line number Diff line number Diff line change
Expand Up @@ -92,10 +92,9 @@ function retrieveSourceMap(source) {

// Read the contents of the source map
var sourceMapData;
var dataUrlPrefix = "data:application/json;base64,";
if (sourceMappingURL.slice(0, dataUrlPrefix.length).toLowerCase() == dataUrlPrefix) {
if(/^data:application\/json[^,]+base64,/.test(sourceMappingURL)) {
// Support source map URL as a data url
sourceMapData = new Buffer(sourceMappingURL.slice(dataUrlPrefix.length), "base64").toString();
sourceMapData = new Buffer(sourceMappingURL.slice(sourceMappingURL.indexOf(',')+1), "base64").toString();
sourceMappingURL = null;
} else {
// Support source map URLs relative to the source URL
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