RFE: keybinding to cancel opening a URL

[mathstuf]

Ever since I started using a tmux binding to pull URLs from the current pane, I end up missing that there's a URL visible higher up in the pane and I end up accidentally selecting it to open first. However, I do usually catch myself before confirming opening the URL. It would be nice if there were a binding to just go back to the list again without having to first kill the line and "accept" it (I end up using ^C and restarting urlview most of the time because it is faster than ^W'ing the full URL). I try to remember ^U, but it doesn't stick (and is also not one-handed). Would ^X be suitable?