babel/minify

Incorrect sourcemaps

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#629 opened on Jul 13, 2017

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help wanted

Description

Hello! I created an example repo - demo How to get correct sourcemaps with babili? If I delete babili from gulp task, sourcemap is correct.

Contributor guide

Tech stack
javascript
Domain
build system
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaScriptBabelsourcemaps
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
The issue points to an example repository showing incorrect sourcemaps when babili is used. To debug, examine how babili (babel minify) generates source maps compared to when it is absent. Check the gulp task configuration and the babili plugin options. Look at the babel minify source code in lib/ for source map handling. Also review similar issues or PRs in the repository for guidance.
Incorrect sourcemaps · babel/minify#629 | Good First Issue