Find source position from minified stack trace

sourcemap-help.js

const sourceMap = require("source-map");
const fetch = require('node-fetch');

const sourcemapUrl = 'https://example.com/9fb743af.chunk.js.map';
const targetLine = 6;
const targetColumn = 9497;

fetch(sourcemapUrl)
  .then(body => body.text())
  .then(map => new sourceMap.SourceMapConsumer(map))
  .then(consumer => {
    console.log(consumer.originalPositionFor({
      line: targetLine,
      column: targetColumn,
    }));
  })