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
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SourceMap | Chrome
Full support
Yes
| Edge
Full support
≤79
| Firefox
Full support
55
| IE ? | Opera
Full support
Yes
| Safari
Full support
Yes
| WebView Android
Full support
Yes
| Chrome Android
Full support
Yes
| Firefox Android
Full support
55
| Opera Android
Full support
Yes
| Safari iOS
Full support
Yes
| Samsung Internet Android
Full support
Yes
|
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.