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SourceMap

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

Syntax

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

Directives

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

Examples

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

Specifications

Specification Title
Draft document Source Map Revision 3 Proposal

Browser compatibility

FeatureChromeFirefoxEdgeInternet ExplorerOperaSafari
Basic Support

(Yes) X-

(Yes)

27.0 X-

55.0

???

(Yes) X-

(Yes)

FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support???

27.0 X-

55.0

???

See also

Document Tags and Contributors

 Contributors to this page: fscholz
 Last updated by: fscholz,