W3cubDocs

/HTTP

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.

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

Feature Chrome Firefox Edge Internet Explorer Opera Safari
Basic Support

(Yes) X-

(Yes)

27.0 X-

55.0

? ? ?

(Yes) X-

(Yes)

Feature Android Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic Support ? ? ?

27.0 X-

55.0

? ? ?

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/SourceMap