Introduction I don’t know if there is or ever will be a way to uniquely identify machines using a browser alone. The main reasons are: You will need to save data on the users computer. This data can be deleted by the user any time. Unless you have a way to recreate this data which … Read more
The biggest difference between bearer tokens and cookies is that the browser will automatically send cookies, where bearer tokens need to be added explicitly to the HTTP request. This feature makes cookies a good way to secure websites, where a user logs in and navigates between pages using links. The browser automatically sending cookies also … Read more
HTTP is stateless. In order to authorize you, you have to “sign” every single request you’re sending to server. Token authentication A request to the server is signed by a “token” – usually it means setting specific HTTP headers, however, they can be sent in any part of the HTTP request (POST body, etc.) Pros: … Read more
You cannot set cookies for another domain. Allowing this would present an enormous security flaw. You need to get b.com to set the cookie. If a.com redirect the user to b.com/setcookie.php?c=value The setcookie script could contain the following to set the cookie and redirect to the correct page on b.com <?php setcookie(‘a’, $_GET[‘c’]); header(“Location: b.com/landingpage.php”); … Read more
This can be caused by having Chrome set to Continue where you left off. Further reading Bug report: Chrome is not deleting temporary cookies – i.e. not logging me out automatically when I close all browser Windows Issue 128513 in Chromium: Session Cookies not cleared when Chrome processes closed Issue 128567: Session only cookies don’t … Read more
Use JavaScript Cookie plugin Set a cookie Cookies.set(“example”, “foo”); // Sample 1 Cookies.set(“example”, “foo”, { expires: 7 }); // Sample 2 Cookies.set(“example”, “foo”, { path: ‘/admin’, expires: 7 }); // Sample 3 Get a cookie alert( Cookies.get(“example”) ); Delete the cookie Cookies.remove(“example”); Cookies.remove(‘example’, { path: ‘/admin’ }) // Must specify path if used when setting.
The concept is storing persistent data across page loads for a web visitor. Cookies store it directly on the client. Sessions use a cookie as a key of sorts, to associate with the data that is stored on the server side. It is preferred to use sessions because the actual values are hidden from the … Read more
All cookies expire as per the cookie specification, so this is not a PHP limitation. Use a far future date. For example, set a cookie that expires in ten years: setcookie( “CookieName”, “CookieValue”, time() + (10 * 365 * 24 * 60 * 60) ); Note that if you set a date past 2038 in … Read more
The order in which you use middleware in Express matters: middleware declared earlier will get called first, and if it can handle a request, any middleware declared later will not get called. If express.static is handling the request, you need to move your middleware up: // need cookieParser middleware before we can do anything with … Read more
Shorter, more reliable and more performant than the current best-voted answer: const getCookieValue = (name) => ( document.cookie.match(‘(^|;)\\s*’ + name + ‘\\s*=\\s*([^;]+)’)?.pop() || ” ) A performance comparison of various approaches is shown here: https://jsben.ch/AhMN6 Some notes on approach: The regex approach is not only the fastest in most browsers, it yields the shortest function … Read more