How to make Bing roads default map?

Does anyone else have trouble displaying Bing roads in iOS Safari? I prefer the Bing roads over OpenStreetMap, but when I pull up my dump1090-fa page on my iPad, the button to change the map does nothing. Ideally I’d like to make the Bing roads default but if the button were to work in iOS then that would be ok too. I’ve poked around in the javascript but it’s a bit over my head. Any tricks that I haven’t found yet?

It works for me, however, I am using an old Ipad mini 1 with ios 9.x. Maybe there is an issue with cookies.

you can alter the positions in layers.js so you could have bing as the first map

Thanks. I’ll give this a try. Interesting that the button is working for johnhawkes2030 on iOS9 and I wonder if I have some obscure setting on my iPad Air with the latest iOS that’s prohibiting it from working for me.