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The SourceMap HTTP response header links generated code to a source map, enabling the browser to reconstruct the original source and present the reconstructed original in the debugger.

Header type Response header
Forbidden header name no


SourceMap: <url>
X-SourceMap: <url> (deprecated)


A relative (to the request URL) or absolute URL pointing to a source map file.


SourceMap: /path/to/file.js.map


Specification Title
Draft document Source Map Revision 3 Proposal

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support

Yes X-



27 X-


? ?

Yes X-


FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? ? ?

27 X-


? ? ?

See also

Tag del documento e collaboratori

Hanno collaborato alla realizzazione di questa pagina: fscholz
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