How to hide overlay pressing Back button

问题

Firstly: I ma very new in jQuery and web front-end.

Problem: I have a test site

Steps to see the problem:

1. Click on [UploadTest]
2. Click on any pic in gallery to see an overlay
3. Click on browser's Back button

Now I see main page with the overlay. Question is how to hide overlay when I leave the gallery page by Back button?

Sometime othe overlay is hidden but when I go on gallery page again it is visible.

How to hide it automatically?

Thanks.

UPDATE: Sorry, I can not post sources because I do not know where is problem. Please if you have a minute look inside sources in browser.

回答1:

$(document).ready(function () {
    if (window.history && window.history.pushState) {
        $(window).on('popstate', function () {
            $("#galleryOverlay").css('display', 'none')
        });
    }
});

来源：https://stackoverflow.com/questions/23760625/how-to-hide-overlay-pressing-back-button