does workspaces only work for locally hosted websites?

[Shailan Patel]

as the title, does anybody know whether workspaces only works for locally hosted websites n localhost? 

im doing some experimenting by changing the JavaScript logic for a remote website ( that i dont own) and in order to allow my changes to persist after page reloads i think i should only use local overrides as opposed to workspaces ( because i think workspaces doesn't work for remote websites and only works for websites on localhost) ?