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fix: sourcemap generating when previous loader pass sourcemap as string #905

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Merged
merged 1 commit into from
Mar 6, 2019
Merged

fix: sourcemap generating when previous loader pass sourcemap as string #905

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3 changes: 2 additions & 1 deletion src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,8 +44,9 @@ export default function loader(content, map, meta) {
if (sourceMap) {
if (map) {
// Some loader emit source map as string
// Strip any JSON XSSI avoidance prefix from the string (as documented in the source maps specification), and then parse the string as JSON.
if (typeof map === 'string') {
map = JSON.stringify(map);
map = JSON.parse(map.replace(/^\)]}'[^\n]*\n/, ''));
}

// Source maps should use forward slash because it is URLs (https://github.com/mozilla/source-map/issues/91)
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