chrome Extension : Set persistent cookie in chrome extension?

Question

I am working with chrome extension development here I need to set cookie value by my extension.

I have set cookies by:

chrome.cookies.set({ url: "http://example.com/", name: "CookieVar", value: "123" });

But it available in the current browser when I close the browser data was lost so that I go with

chrome.cookies.set({ url: "http://example.com/", name: "CookieVar", value: "123", expirationDate: 3600 });

But from this I am not able to see cookie information is anything I have missed here.

Answer 1

It seems that your expiration date is 1 Jan 1970 01:00 (3600 equals 1 hour after UNIX epoch). So of course your cookie will be deleted because it's expiration date is set to the past.

You need to provide appropriate expirationDate for your cookie. In documentation, expirationDate defined as:

The expiration date of the cookie as the number of seconds since the UNIX epoch

To set a cookie relative to the current time you need to add seconds to (new Date().getTime() / 1000) as @pickled suggested.