@mbakgun/n8n-nodes-slack-socket-mode/node_modules/axios/lib/helpers/parseProtocol.js

Slack Socket Mode Node for n8n that allows you to use +100 Slack events in your n8n instance with proxy mode

'use strict';

export default function parseProtocol(url) {
  const match = /^([-+\w]{1,25}):(?:\/\/)?/.exec(url);
  return (match && match[1]) || '';
}