When vue-router switches routes under the iphone5 ios8 system, the dom nodes of the previous page still exist and do not disappear.

problem description

when vue-router switches routes under iphone5 ios8, the dom nodes of the previous page still exist
, but it is ok

under iphone5s ios8.

destroyed methods are all executed
I"m not sure how this problem arises.

second addition:

 dom destroyed
demo

clipboard.png
just like above-there are two routing components under sharpapp. If I jump to the next route at this time, the dom of the current page will not disappear, it will appear with the dom in the next routing component

Menu