As a web developer, we often want to test our local changes directly on production sites. This saves a lot of effort of either running the entire site locally or deploying my code to staging/production environment. Using Requestly, you can load JS file in staging/production (or live) sites to test your local changes faster.
Get started here: https://app.requestly.io/rules/my-rules
Learn more about Requestly: https://requestly.io
Download Requestly for Free on other platforms: https://requestly.io/downloads
Follow us on Twitter: / requestlyio