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It is embarrassing, but I only know how to write HTML like it’s 1999. The last new thing I learned was an iframe, the kids tell me CSS something I should learn...

nah, newfangled stuff, cross browser compatability issues, not worth it - it won't catch on

Keeping up is an endless treadmill. If your primary work is in some other domain, say backend infra or some non-coding profession that writes a line every blue moon, the investment may not pay off.

If you are a front-end dev it's of course a no-brainer to keep up.

I legitimately remember the day I first saw an iframed site and how cool I thought it was.

God I'm old.

iframes have had a wild ride in acceptance

1999 - Cool and Clever

2005 - Horrible

2010 - Horrible but sometimes necessary

2015 - Awesome

> 2015 - Awesome

Huh, what happened?

Limitations imposed upon embedded scripts from foreign domains by technologies like CORS and the like, combined with modern styling abilities.

You can place another service's elements on a page that look like they're actually part of the page layout while the JS running them can freely communicate with the service's backend without having to bother with cross domain problems.

Think of all the support/chat widgets you see on modern-day pages, they're all iframes.

And obviously: tracking all the things!

We started injecting everyone else's JS everywhere.

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