SourceMap HTTP 响应头链接生成的代码到一个 source map,使浏览器能够重建原始的资源然后显示在调试器里。

Header 类型 Response header
Forbidden header name no

语法

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

指令

<url>
指向一个source map文件的一个相对(于请求的URL)或者一个绝对的URL。

例子

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

规范

Specification Title
Draft document Source Map Revision 3 Proposal

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Non-standard
Chrome Full support Yes
Prefixed
Full support Yes
Prefixed
Prefixed Requires the vendor prefix: X-
Full support Yes
Edge ? Firefox Full support 27
Prefixed
Full support 27
Prefixed
Prefixed Requires the vendor prefix: X-
Full support 55
IE ? Opera ? Safari Full support Yes
Prefixed
Full support Yes
Prefixed
Prefixed Requires the vendor prefix: X-
Full support Yes
WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android Full support 27
Prefixed
Full support 27
Prefixed
Prefixed Requires the vendor prefix: X-
Full support 55
Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

另请参阅

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