Get root website url in javascript for redirect

Question

I want to redirect to Login page from every page in my website after session timeout. I try to set window.location to the login page:

var ParentUrl = encodeURIComponent(window.parent.location.href);
document.location.href = "~/Login.appx?ReturnUrl=" + ParentUrl;

but "~" seems to be unsupported. my Login page is located under my root folder.

for example: *http://server/website/*Login.aspx

How can I get this url in javascript?

Thanks a lot,

Inbal.

Answer 1

I would use the window.location.origin. It will return the first part for you and after that just Uri encode the parent url and it's done!

var parentUrl = encodeURIComponent(window.location.href),
    loginUrl = window.location.origin+"/Login.appx?ReturnUrl=" + parentUrl;

window.location.href = loginUrl;

A small tip for cross browser functionality is to use window.location. It's read/write on all compliant browsers. While document.location is read only in some (ie).