I conducted a small experiment, which was generally successful, but there were some key issues.
The most significant issue is that the game is permanently stored as Joiplay application data. After first launching of the game, any changes to it are no longer effective. Furthermore, there’s no way to delete the game data individually; you have to clear all of Joiplay’s data.
Another lesser issue is that Joiplay’s virtual keyboard doesn’t work initially until you swipe the screen (I guess this triggers the up or down keys) or press “F8” from the menu in the upper right corner.
Other minor issue is that when rendering large fonts, the edges of the text are slightly off.
I used Joiplay 1.20.590 and BrowserWoditor 0.5.6.2.
Personally, I hope that Joiplay can be adapted for BrowserWoditor, because the steps to migrate WOLF RPG to BrowserWoditor are not difficult. If it can be well adapted, it means that Joiplay can support a new type of game.