As part of the March patch Tuesday update for Windows RT, Microsoft has seen fit to change the way Flash works on tablets.
Originally, Flash would only work on websites prescribed by a whitelist controlled by Microsoft unless you patched that functionality and managed the whitelist yourself. However, with the change from Microsoft it seems that any website containing Flash will work without as much as a blip on the radar. This is good news for people looking for the ability to use services such as Spotify through a web browser in the absence of a native app.
Check it out once you have patched your Windows RT tablet this month!