The Sourcemap HTTP response header links generated code to a source map, so the browser shows the original source in a debugger. This makes it easier to work with minified or transpiled code.

Learning resources on MDN

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Browser support

• Chrome 18 Released on 2012-03-28
• Chrome Android 18 Released on 2012-06-27
• Edge ≤79 Released before 2020-01-15
• Firefox 55 Released on 2017-08-08
• Firefox for Android 55 Released on 2017-08-08
• Safari 7 Released on 2013-10-22
• Safari on iOS 7 Released on 2013-09-18

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature