Show Known Visitor HTML on other open tabs after a form submit

A fun use for BroadcastChannel, a browser feature typically used by web apps (not mere LPs).

Creating DNS CAA records for Marketo-hosted domains

If you can make IT happy with minimal impact, do it. (But stay skeptical of claimed “security issues” in any MAP, as they’re usually false alarms.)

Adding hidden fields (e.g. UTMs) to Marketo Dynamic Chat dialogues

They’ll tell you it can’t be done. But they didn’t count on the power of having no social life.

Avoid log purge surprises with “Last [Activity] Week Ending” fields

You’ll wish you’d done this 90 days ago.

Yes, you can use Velocity in the native Preheader area, just not the way you’re used to

Welcome to Workaround Town. Ain’t no documentation-believin’ newbies round here.

List-Unsubscribe-Post unsubscribes (e.g. clicking “Unsubscribe” in Gmail) won’t work if your MAP is down

Not sure anyone’s tested this before. Unwanted result, but at least we can plan accordingly.

Make native Pre-Fill work across refreshes with a few lines of JS

Native Pre-Fill’s delicate, everything-must-be-just-right rules are accepted as the cost of privacy. But you don’t have to live with one of the more frivolous ones.

“Disabling cookies” and “Disabling Munchkin” are different (though of course related) things

Consistently seeing only one pageview per visit (not zero, but never > 1)? It’s probably cookie consent JS running amok.