“[removed].hash = location.hash” does not work in

问题:

I can't get window.location.hash = location.hash to work in Safari.

I'm using javascript to wrap the contents of my page with a scrollable DIV, placed below the navigation bar in my webpage. Since the scrollbar's location gets reset when the javascript runs, I'm losing the original hash location that the URL set. I need to re-cue the hash location without reloading the page using javascript, so I'm using window.location.hash = location.hash. It works in IE8, Firefox, and Opera, but it doesn't work in Safari. (I'll assume Chrome, too, but I haven't check). Any suggestions?

Hint: I like jQuery.

回答1:

Webkit has two oddities that prevent window.location.hash = location.hash from working normally.

1. Webkit responds to window.location.href instead of window.location.hash (like all the other browsers do). Curiously, webkit can still read the URL's hash tag using location.hash
2. Webkit has a documented bug where the href location has to be set to the same location twice before the browser will go to the new location. Bug report here.

This code solved my problem: (using jQuery).

$(document).ready(function() {
    gotoHASH()
};

function gotoHASH() {
    if (location.hash) {
        if ( $.browser.webkit == false ) {
            window.location.hash = location.hash;
        } else {
            window.location.href = location.hash;
        }
    }
};

回答2:

I ended up with

window.location.hash = "";
window.location.hash = "myanchor";

This worked fine in all desktop browsers I tested in and on iOS and Android chrome.

回答3:

Set location.hash to something else first and immediately set it back.

var t = window.location.hash;
window.location.hash = "non-existant-id";
window.location.hash = t;

回答4:

Before JavaScript changes the orginal hash location, get the scroll position using

var st = $(window).scrollTop().

When you want to restore the scroll location, use

$(window).scrollTop(st);