Load scripts in Chrome by putting this in DevTools > Sources > Snippets

readme.md

1. Run the script
2. Use it like: loadScript('https://unpkg.com/@testing-library/dom/dist/@testing-library/dom.umd.js')

You'll need a UMD build or any browser compat build for this. If you see an error similar to

then you'll have to copy paste that JS file into Snippets and run it manually

load-script.js

'use script'

function loadScript(filePath, cacheBuster = `?bust=${new Date().getTime()}`) {
	const scriptTag = document.createElement('script');
	scriptTag.onload = () => console.log('loaded');
	scriptTag.type = 'text/javascript';
	scriptTag.src = `${filePath}${cacheBuster}`;
	document.querySelector('head').appendChild(scriptTag);
}

window.loadScript = loadScript;