I noticed that, if you visit a Workboard, and you Hide a Column, and you {nav Undo}, then the page is reloaded, for no reason in the world.
I'm talking about the {nav Cancel} button in these popups:
{F309894,size=full}
This is true in all "Hide" popups (when hiding a Milestone, or hiding a normal Column):
{F309897}
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As inspiration, we can copy the code probably from the {nav icon=pencil,name=Edit Column} popup, that has a {nav Cancel} button that does not reload the page but just closes the popup.