sourceMap.js

// Where `error` is the error caught by yout try/catch block

const stack = error instanceof Error ? error.stack : error;

const re = /^\s+at\s+(.+?\s+)?\(?([0-z._\-\\\/]+):(\d+):(\d+)\)?$/gm
let match: RegExpExecArray | null
let outStack = error.toString()

while(match = re.exec(stack)){
  if(match[2] === 'main'){
    const pos = consumer.originalPositionFor({
      line: parseInt(match[3], 10),
      column: parseInt(match[4], 10)
    })

    if(pos.line != null){
      if (pos.name) {
        outStack += `\n    at ${pos.name} (${pos.source}:${pos.line}:${pos.column})`
      } else {
        if (match[1]) {
          // no original source file name known - use file name from given trace
          outStack += `\n    at ${match[1]} (${pos.source}:${pos.line}:${pos.column})`
        } else {
          // no original source file name known or in given trace - omit name
          outStack += `\n    at ${pos.source}:${pos.line}:${pos.column}`
        }
      }
    } else {
      // no known position
      break;
    }
  } else {
    // no more parseable lines
    break;
  }
}

console.log(outStack)