How to disable web security in any of the browsers on ios?

Question

safari

I need to be able to get data from someone else's iframe using javascript, but this is not possible due to browser security reasons. Is it still possible to disable this in some browser on ios, for example, in chrome?

Answer 1

it is forbidden.
at least on the stock Yaosi.
and there is no chrome on yaosi, it's just skin over safari. like any other browser in Yaoshi.