This repository contains the latest draft of the ECMA-426 specification ("Source map format"), as well as older revisions of the format developed prior to moving to Ecma.
The current specification is an evolution of the original third revision. The first and second revision of the spec are provided for historical context, and don't have widespread adoption in tools.
- Run
npm ci && npm run buildfrom this repository's root folder - Open
./out/index.htmlin your browser
| Proposal | Author | Stage |
|---|---|---|
| Scopes | Holger Benl, Simon Zünd | Stage 3 |
| Range Mappings | Tobias Koppers | Stage 2 |
| Debug ID | Luca Forstner | Stage 2 |
| Env | Nick Fitzgerald | Stage 1 |
See LICENSE.md for details.
These documents have previously been hosted on Google Docs:
- Revision 1: Source Mapping
- Revision 2: Closure Compiler Source Map 2.0
- Revision 3: Source Map Revision 3 Proposal