I try to use following code to delete all cookies in page unload event. However it doesn't seem to work in Chrome. Is there a better way to do it?
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var chip = cookies[i],
entry = chip.split("="),
name = entry[0];
document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:01 GMT; domain=' + window.location.hostname + '; path=/ ';
}
From another post I got a hint. The cookies I want to delete has Host only flag. Therefore I can not set domain when I write cookie back. Here is a working copy.
ar cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var chip = cookies[i],
entry = chip.split("="),
name = entry[0];
document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:01 GMT; path=/ ';
}
Related
whenever am i trying to remove cookie its show me this error.
TypeError: universal_cookie__WEBPACK_IMPORTED_MODULE_3__.default.remove is not a function
this is my code
Logout = () =>{
var user = Cookies.get('shailuKiCookie');
// console.log(user);
if(user){
Cookies.remove("shailuKiCookie");
// alert("logout successfully");
window.location.reload(false);
}else{
window.location.reload(false);
}
}
enter image description here
function set_cookie(name, value) {
document.cookie = name +'='+ value +'; Path=/;';
}
function delete_cookie(name) {
document.cookie = name +'=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}
You don't have to specify a cookie value when you delete a cookie.
Just set the expires parameter to a past date:
note : HttpOnly cookies cannot be deleted with JavaScript on the client side.
you should create a Cookies object.
const cookies = new Cookies()
cookies.remove('cookie name')
Im using the google translate code on my page and it works good, but if I look at the cookie it says that it only have expiration during the session!? So I want to set it so it does´t expire, so that it is the same language when the user comes back as he choosed the first time.
Im using this now.
SOLVED! OK so with this the user can select a language and the next time he visit the page it is translated to the language he picked before!
var ckDomain;
function googleTranslateElementInit() {
function getCookie(name)
{
var re = new RegExp(name + "=([^;]+)");
var value = re.exec(document.cookie);
return (value != null) ? unescape(value[1]) : null;
}
var kakan;
var googkakan;
kakan=getCookie("googtrans22");
$$(document).on('change', '#google_translate_element', function (e) {
setTimeout(function(){
function getCookie(name)
{
var re = new RegExp(name + "=([^;]+)");
var value = re.exec(document.cookie);
return (value != null) ? unescape(value[1]) : null;
}
googkakan=getCookie("googtrans");
document.cookie = "googtrans22="+googkakan+"; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/" + ckDomain;
document.cookie = "googtrans22="+googkakan+"; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/";
},1000);
});
for (var ckDomain = window.location.hostname.split("."); 2 < ckDomain.length;){
ckDomain.shift();
}
ckDomain = ";domain=" + ckDomain.join(".");
// domain cookie
document.cookie = "googtrans="+kakan+"; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/" + ckDomain;
// host-only cookie (with no domain name definition)
document.cookie = "googtrans="+kakan+"; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/";
new google.translate.TranslateElement({
pageLanguage: 'sv',
autoDisplay: false,
layout: google.translate.TranslateElement
}, 'google_translate_element');
}
(function() {
var googleTranslateScript = document.createElement('script');
googleTranslateScript.type = 'text/javascript';
googleTranslateScript.async = true;
googleTranslateScript.src = 'https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit';
( document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0] ).appendChild( googleTranslateScript );
})();
Apparently the library is forced to write over the cookie to make it expire at end of the session.
The good news is that before doing that it reads the existing cookie, so you can feed it before each initialization call.
To force the library to translate a Swedish page into English:
function googleTranslateElementInit() {
var ckDomain;
for (var ckDomain = window.location.hostname.split("."); 2 < ckDomain.length;){
ckDomain.shift();
}
ckDomain = ";domain=" + ckDomain.join(".");
// domain cookie
document.cookie = "googtrans=/sv/en; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/" + ckDomain;
// host-only cookie (with no domain name definition)
document.cookie = "googtrans=/sv/en; expires=Thu, 07-Mar-2047 20:22:40 GMT; path=/";
new google.translate.TranslateElement({
pageLanguage: 'sv',
autoDisplay: false,
layout: google.translate.TranslateElement
}, 'google_translate_element');
}
I've this behaviour of vcl_deliver, it removes every http.set-cookie from backend.
This is my piece of varnishlog:
- VCL_call DELIVER
- RespUnset Set-Cookie: JSESSIONID=20E1512F59F3BA8A7BAE6AC2C10B0F66; Path=/; HttpOnly
- RespUnset Set-Cookie: OpenCmsOuFqn=/; Expires=Wed, 03-Feb-2016 13:18:41 GMT; Path=/
- RespUnset Set-Cookie: OpenCmsUserName=Admin; Expires=Wed, 03-Feb-2016 13:18:41 GMT; Path=/
- RespHeader Set-Cookie: LB=fep001; path=/;
- RespHeader X-Cache: MISS
- VCL_return deliver
I may not see the configuration mistake I post it too.
This is my default.vcl config file:
vcl 4.0;
import std;
import directors;
backend fep001 {
.host = "fe1";
.port = "82";
.probe = {
.url = "/ping";
.interval = 10s;
.timeout = 1s;
.window = 1;
.threshold = 1;
.expected_response = 200;
}
}
backend fep002 {
.host = "fe2";
.port = "82";
.probe = {
.url = "/ping";
.interval = 10s;
.timeout = 1s;
.window = 1;
.threshold = 1;
.expected_response = 200;
}
}
sub vcl_init {
new cluster = directors.round_robin();
new clusterhash = directors.hash();
cluster.add_backend(fep001);
clusterhash.add_backend(fep001, 1.0);
cluster.add_backend(fep002);
clusterhash.add_backend(fep002, 1.0);
}
sub vcl_recv {
if (req.http.Cookie ~ "LB=fep[0-9]+") {
set req.backend_hint = clusterhash.backend(req.http.Cookie.LB);
} else {
set req.backend_hint = cluster.backend();
}
if (! std.healthy(req.backend_hint)) {
std.log("not healthy");
set req.backend_hint = cluster.backend();
}
if (req.http.Cookie) {
set req.http.Cookie = regsuball(req.http.Cookie, "(^|; ) *LB=[^;]+;? *", "\1");
}
if (req.method != "GET" && req.method != "HEAD") {
return(pass);
}
if (req.url ~ "^/export/.*$") {
return(hash);
}
return(pass);
}
sub vcl_backend_response {
set beresp.http.X-node = beresp.backend.name;
set beresp.http.Vary = "Accept-Encoding";
if (bereq.url ~ "^/export/.*$" && beresp.status < 400) {
set beresp.ttl = 30m;
} else {
set beresp.ttl = 0s;
}
return(deliver);
}
sub vcl_deliver {
if (obj.hits == 0 && req.http.Cookie !~ "LB=fep[0-9]+") {
set resp.http.Set-Cookie = "LB=" + resp.http.X-node + "; path=/;";
}
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT:" + obj.hits;
} else {
set resp.http.X-Cache = "MISS";
}
}
How could I keep those http headers?
Thank you
Davide
I finally found one solution deduced from the article Proper sticky session load balancing in Varnish
It seems that Varnish 4 does not add other Set-Cookie but override it and does not add such Varnish 3 in such ways:
set resp.http.Set-Cookie = "LB=" + req.http.X-node + "; path=/;" + resp.http.Cookie;
It means that you have to use some VMODs.
I added cookie and header imports:
vcl 4.0;
import std;
import directors;
import cookie;
import header;
I changed a bit the backend selection:
cookie.parse(req.http.cookie);
if (cookie.get("LB")) {
set req.backend_hint = clusterhash.backend(cookie.get("LB"));
} else {
set req.backend_hint = cluster.backend();
}
if (! std.healthy(req.backend_hint)) {
std.log("not healthy");
set req.backend_hint = cluster.backend();
}
and in the end this is the main reason to add those VMODs:
if (obj.hits == 0 && req.http.Cookie !~ "LB=fep[0-9]+") {
header.remove(resp.http.Set-Cookie,"^LB=.*$");
header.append(resp.http.Set-Cookie,"LB=" + resp.http.X-node + "; Expires=" + cookie.format_rfc1123(now, 60m) + "; path=/;");
}
I hope this answer will help someone.
I have set a cookie using the jQuery cookie plugin. I've set the expiration on the cookie to one hour, so after that time the cookie is deleted. I want to display the remaining time left until the cookie expires to the user by retrieving this info from the cookie itself. is this possible using the jQuery cookies plugin? If not is there an eloquent way to achieve this?
I've set the expiration in this way:
jQuery.cookie('Cookie', timedCookie, { expires: new Date(+new Date() + (60 * 60 * 1000)) });
It's impossible to get a cookie's expiration using JavaScript. The only way to do this would be to store the expiration date somehow, such as in a javascript variable or in another cookie or local storage.
Here's an example:
var MINUTES = 1000 * 60;
var expireTime = new Date(+new Date + (60 * MINUTES)); // store the expiration time
jQuery.cookie('Cookie', timedCookie, { expires: expireTime });
var updateMessage = function(msg){
document.getElementById('time-left').innerHTML = msg;
};
var i = setInterval(function(){ // calculate time difference every ~1 min
var timeLeft = expireTime - new Date;
if(timeLeft <= 0){
updateMessage('Your session has expired.');
clearInterval(i);
} else {
updateMessage('You have ' + (timeLeft / MINUTES | 0) + ' minute(s) left in your cookied session.');
}
}, MINUTES);
I am already using this code add and delete in the cookies
deleted code:
String profileScore=null;
Cookie cookiesScore =new Cookie("profileScore","");
cookiesScore.setValue("");
cookiesScore.setMaxAge(0);
response.addCookie(cookiesScore);
but its not deleted properly please help me give any example
Try this if using javascript
create a cookie:
call a this method at login:
function setCookie(c_name,value,exdays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
document.cookie=c_name + "=" + c_value;
}
delete a cookie:
call a this method at logout:
function deleteCookies() {
var cookies = document.cookie.split(";");
for (var i = 0; i < cookies.length; i++) {
var cookie = cookies[i];
var eqPos = cookie.indexOf("=");
var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
}
}