Leaking heater core

Does Anyone know an easy fix (that works) for a leaking heater core?

You can bypass it by connection the two hoses at the firewall together.

It really depends if you care about the vehicle.....
the right way would be to replace it. I remember a
vehicle that I didn't really care about.... I took off the
the heater core inlet hose... poured in some of that bars
leak crap into the inlet of the heater core... and quickly
put it back together and ran it hot ........ for a while....

I also have put pepper and even oatmeal in the system..
so use your discretion.. here I like pepper the best........
but, If you care about the vehicle....