Awesome thing youre starting to move 3rd party client features into the vanilla client! Im really looking forward to see more of this!
But I have a suggestion to improve this feature for mobile. On mobile, its a bit weird to use since you get logged out after about 2 seconds or something due to energy savings restrictions on android (and ios too i believe, not sure though) when the app is not in foreground. I'm pretty sure, you are aware of that but aren't able to change this behaviour. Since the link opens the browser, it minimizes the game, which leads to the described process. It would be very helpful to let the wiki open via overlay, like the bond store on mobile to make it actually usable.
Note: i have my energy settings changed, so i don't get logged out. in my case it's okay when im using chrome as default, since it opens immediatly. but since im using firefox, its a bit weird to use again, because the browser can't push itself in the foreground like chrome c...