(continuing from your comment here: uzairfarooq/arrive#32 (comment))
Firstly, thank you for your work rewriting arrive and making it work in iframes!
I'd like to use monitoring in a userscript (with Tampermonkey/Violentmonkey)
I know that .mjs is an extension for EcmaScript modules, so
// @require https://github.com/kylekyle/monitoring/raw/master/dist/monitoring-latest.min.mjs
doesn't work.
I already tried browserify + esmify browserify index.js -p esmify > bundle.js inside the src folder
and I got this file bundle.js
but it still doesn't work if I manually add it in the Editor|Externals of my userscript.
Could you please help in making a standalone .js version (like in arrive.js) ?