src/util.js
function resolvePath (fileName, depth=2) {
	if (!isBrowser && isRelative(fileName) && !isURL(fileName)) {
		var callerPath = callsites()[depth].getFileName()
		fileName = path.dirname(callerPath) + path.sep + fileName
		fileName = path.normalize(fileName)
	}

	return fileName
}
function resolvePath (fileName, depth=2) {
	if (!isBrowser && isRelative(fileName) && !isURL(fileName)) {
		var callerPath = callsites()[depth].getFileName()
		fileName = path.dirname(callerPath) + path.sep + fileName
		fileName = path.normalize(fileName)
	}

	return fileName
}
path resolver taking in account file structure