It happens when I tested my app, the same problem

i don't think it's good when the user click back button on android it goes back to every page it went throw
so double click to exit is good idea

we need help to make it

i added more than one collapsible block in one page but
when i open one the other doesn't close
how can i make it close when i open other one?

i used this

$(window).scrollTop(0);

in custom javascrips

can i add more html attributes