NONE OF THE COMPUTER COMMANDS SEEMED TO WORK FOR ME IN THE WEB VERSION, USING FIREFOX. i COULD LOG IN BUT "POWM GETGRIDSTATE" SEEMED TO DO NOTHING.
oh, that's really weird, i'm sorry ;-;
i tested it, and it seems to work fine on my end, both on the windows build, and on the web version, so if you want to try it, it might be worth another shot
some things that might help:
you type the username in, then the password when logging in, and you can only do commands after that; and if you are connected to a device, you have to disconnect, before using commands that aren't related to the device you are connected to
(if one of these was the issue then i'm double sorry for not explaining it well enough)