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Almost ... That's an old link : https://jsben.ch/#/BQhED If you get rid of the #/ it seems to work https://jsben.ch/BQhED

Maybe those links could be updated in some automated way?

they could add a url redirect on the client side if they match the old hash routed url

It would be quite easy. I sent a message to the creator, hopefully he'll implement that for you and everyone ^^