如何将当前的 URL 存储在 cookie 中，并使用该 cookie 检查其他页面，如果可用，然后重定向到 JS 中的相同 URL？

Question

Let me explain my scenario. I have a query string in my current page URl, if that exists then i need to store the URL in a cookie. Once i click sign in, i will be redirected to another page, then i will check if this cookie exist there or not, if it exist then it will redirect me back to the current page.

if(queryString = 'data'){
  document.cookie = window.location.href;
  let abc = document.cookie;
}

i am not able to save URL to cookie and use, can anyone help me in this?

Answer 1

It's probably because multiple values are/need to be saved in the cookie. So my advise would be to store it attached to an parameter like url={url} and create a function that can get the correct value like shown in the snippet below.

 let url = window.location.href; console.log("Default url:", url); document.cookie = `url=${url}`; let wrong = document.cookie; console.log("Full cookie:", wrong); function getCookie (name) { let value = `; ${document.cookie}`; let parts = value.split(`; ${name}=`); if (parts.length === 2) return parts.pop().split(';').shift(); } let right = getCookie("url"); console.log("Only url:", right);

The snippet won't work due to Stackoverflow rejecting the use of cookies in snippets.