SessionStorage is not empty when link opened in ne

问题:

I need to have some unique id on every opened browser tab (in a javascript object). The Id must be saved through requests and i decided to use sessionStorage for it.

When i opens the new page in browser it works well.
But when i click a link by right mouse button and choose 'Open link in new tab' in IE 11 - sessionStorage is not empty. So my expectations about new id failed .

Chrome works another way, sessionStorage is empty.

Does anyone know how to solve this problem for IE?

回答1:

I know this is an ancient question but I just today struggled with this myself. I was opening a new tab with a link with target="_blank" expecting the sessionStorage to be empty. It was not.

NOTE: All of this is untested code but you should get the jist. Also the browser I was experiencing this problem with was Firefox 44.0.2.

My code was something along these lines:

Problematic code:

$(window).ready(function(){
    //Get saved session data
    var persistedObject = null;

    try{
        persistedObject = JSON.parse(sessionStorage.getItem('tabData'));
    }catch(e){}
});

function updateSessionStorage(){
    var objectToPersist = {};

    //Get some data to persist
    objectToPersist.value1 = "some data";

    //Save the data in the session storage
    sessionStorage.setItem('tabData', JSON.stringify(objectToPersist));
}

This picked up data from earlier tabs that were closed.

I solved this by changing my code to something like this:

Working code:

$(window).ready(function(){
    //Get saved session data
    var persistedObject = null;

    try{
        persistedObject = JSON.parse(window.name);
    }catch(e){}
});

function updateSessionStorage(){
    var objectToPersist = {};

    //Get some data to persist
    objectToPersist.value1 = "some data";

    //Save the data in the session storage
    window.name = JSON.stringify(objectToPersist);
}

This worked beautifully. The window name is persisted until you close the tab/window, which is exactly what I was expecting sessionStorage to do. New pages is always loaded with window.name = "" if no name was given on the link handling side.

What you might miss out on is the fact that you can't straight out of the box use names such as my sessionStorage.setItem('tabData', 'some data') but you can easily avoid this by doing something like this:

Suggestion:

function updateSessionStorage(){
    var objectToPersist = {};

    try{
        objectToPersist = JSON.parse(window.name);
    }catch(e){}

    if(objectToPersist[tabData] == undefined){
        objectToPersist.tabData = {};
    }

    //Get some data to persist
    objectToPersist.tabData.value1 = "some data";

    //Save the data in the session storage
    window.name = JSON.stringify(objectToPersist);
}

I hope someone finds this useful.