Cancel a print from OctoPrint

What is the problem?
Had a print going that I started from OctoPrint (uploaded GCODE and hit print) then noticed one corner wasn't sticking. I tried to cancel the print from OctoPrint and got a screen that asked if I was sure, but there was no where to acknowledge that I did, in fact, want to cancel the print.

What did you already try to solve it?
Tried searching for stopping print but only found prints that stopped , not stopping a print.

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, octoprint.log, serial.log or output on terminal tab, ...)OctoPrint 1.3.10 OctoPi 0.16.0 on Creality CR-10 Mini

So, you didn't see the entire popup? Or you saw the entire popup (with its drop shadow) and yet there were no buttons?

Try running this in Safe Mode. If it behaves as expected then the problem is one of your plugins. Technically, if one of your plugins is throwing a JavaScript error or if one of your plugins has changed the CSS styling for buttons it could behave as you've described.