How to reload current page in previous page after location.back (not SPA)

Question

Cannot call a function in previous page's lifecycle which the page being killed.

I try to reload page A after page B being killed:

    // in Page B
    function backAndReload() {
        history.back()
        location.reload()
    }

The page A not being reloaded, because after history.back() the page B was killed and the code location.reload() will never be executed.

So I set a timeout:

    // in Page B
    function backAndReload() {
        setTimeout(() => {
            location.reload()
        }, 1000)
        history.back()
    }

But it didn't work as well.

So how to perform a task in a being killed page?

Answer 1

如果是非SPA页面，则无法执行此操作，因为当页面被杀死时， js线程也会被终止，因此所有未完成的任务也会被清除。