//create a cookie with a domain to the current page and path to the entire domain. This cookie is the same as above, but we're also telling the cookie to be applied towards the "~sugar" directory on the "davidwalsh.name" domain. A encrypts the URL token. is it possible to create a cookie in a.my-company.com for b.my-company.com? Similar to the top answer, but instead of redirecting to the page and back again which will cause a bad user experience you can set an image on domain A. Is it normal? What is doing in this sentence? foo.example.com, but the user agent will not accept a cookie with a Note, this cookie is passed in the open (http) and is therefore insecure. How do I check if an element is hidden in jQuery? Say I have a website called a.com, and when a specific page of this site is loaded, say page link, I like to set a cookie for another site called b.com, then redirect the user to b.com. Why can't Preview Export 16-bit HEIC images? You can find a description for example here: Another way to communicate between origins is CORS. Be aware that if you use URL parameters to set cookies on b.com, then anybody could force any cookie value on b.com from any website. Be advised, you must have your Access-Control-Allow-Origin configured properly for this to work. You should, of course, substitute your own domain name for example.com (as example.com is a domain name specifically reserved for use in examples where it represents whatever domain name you are really using.) Using Iframe we can embed webpages of another domain provided the X-Frame-Options isn't set to SAMEORIGIN. is in the URL bar). Is it ethical to reject a job offer I already verbally accepted? Facebook probably uses this technique. Any body have any idea how to set and get cookies using different domains. See Date for the required formatting. Asking for help, clarification, or responding to other answers. If not specified, the cookie belongs to the current page domain=domainname - Optional. Allowing this would present an enormous security flaw. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In 2 we request the login status of sso.moxio.com. Here is what I've used. "www.another.com" cannot set cookies for other domains than itself. How do people prototype circuits without getting shocked? After all, https is built on top of http. What's the difference between etymology and glyph origin? While you can specify a Domain attribute, the specification says "The user agent will reject cookies unless the Domain attribute specifies a scope for the cookie that would include the origin server.". It returns the value of cookie. If the OP owns a.com and b.com and the cookie is pretty trivial, then maybe it is fine. IIRC: document.cookie = "dims=data;domain=www.mydomain.com;path=/;expires=" /L. Setting cookies for another domain is not possible. some user agents will reject Domain attributes of "com" or "co.uk". Then. How do I test for an empty JavaScript object? Google is using this same way. Pros and cons of representing routes as legs or stops?

We've recently faced a problem of setting a cookie from foo.mycompany.com to all subdomains in a *.mycompany.com domain.

The solution seemed pretty straightforward: just set a wildcard cookie to .mycompany.com (note that the first character is a dot). Join Stack Overflow to learn, share knowledge, and build your career. As Site B is the owner of site B cookies it will be able to set whatever value you need by processing the correct post message. Do your research on how to do that correctly. this is not a solution of this question. When Path is omitted during cookie creation, the browsers defaults to / . We send the session cookie, the application verifies it against a list of active sessions. To get the name and value of the cookie. If a cookie created by a page on blog.example.com sets its path attribute to / and its domain attribute to example.com, that cookie is also available to all web pages on backend.example.com, portal.example.com. Specifies the domain of Stackoverflow uses similar technique, but with HTML5 local storage, more on this on their blog. I know this is an old response, but why would this be a security risk? Absolute Directions and Coordinate Systems. How can I merge properties of two JavaScript objects dynamically? "were dumb as" similar to "were as dumb as"? You can send a POST request from a.com to b.com using CURL (recommended, serverside) or a hidden method="POST" form (clientside). b.com is in the URL bar). If site A and site B share an encryption secret, then a third party cannot read it. How to make JavaScript execute after page load? The function takes a URL and name of the required cookie. So you do some ajax handshaking first and then you pass the now secured url in the open. We know that modern web applications can be consumed by various types of clients from a smart phone to a black and white console application. iframe worked perfectly for my solution, simply include the values in the url like a normal get request and respond from server with cookie values. + location.hostname.split ('. Warning: Many web browsers have a session restore feature that will You could think about using cross window messaging - especially if you are using iframes. Get Cookie From Another Domain - posted in Security: i have tried and failed to gain access to the values of cookies from another domain, with both javascript and php executed on a script on my website.i can't do it. But this time, we will send a user information (user name) as a cookie writeCookie = function (cname, cvalue, days) { This page tells you how to get/set cookies using JavaScript, how to check if cookie is enabled, and how http cookie works. In case you have a.my-company.com and b.my-company.com instead of just a.com and b.com you can issue a cookie for .my-company.com domain - it will be accepted and sent to both of the domains. I tested it, and browser actually received the cookie from a.com/link, but it didn't send that cookie on the redirection request to b.com. It isn't possible to read cookies created by another domain for security reasons. const cookieJar = pm.cookies.jar(); cookieJar.set(URL, cookie name, cookie value, callback(error, cookie)); cookieJar.get(URL, cookie name, callback(error, cookie)); Its a safety restriction, to allow us to store sensitive data 2. that is up to you and the mechanism you decide to use to prevent that from happening). Will water flowing directly downwards hydrate my farm? What does use strict do in JavaScript, and what is the reasoning behind it? Allan Variance vs Autocorrelation - Advantages. You cannot read the cookie of another domain. --. By default, cookies are available only to the pages in the domain they were set in. Table of Contents Create Cookies Read Cookies Update Cookies Delete Cookies Setting a Send a POST request from A. If you're trying to do something that must be absolutely secure (e.g. Ideally, you'd pass the encrypted info as an http header, so that it's not logged or in the history. If you go for the latter, you might want to obfuscate your JavaScript so that the user won't be able to understand the algorithm and interfere with it. How does Facebook set cross-domain cookies for iFrames on canvas pages? This is a generic solution that takes the root domain from the location object and sets the cookie. cookie = "user=John" alert( document. It is for use only on an SSL connection and it may not be used by JavaScript. 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. (You should prevent other unwanted senders to send messages to you! External oscillators for a microcontroller. Is it proved that breaking RSA is equivalent to factoring as of 2021? Can you please explain what r u saying about i-frame ? I want to set cookies in url like salesforce apex page url using javascript[document.cookie] and get those cookies in another domain in same browser.using javacript but not able to get. How to merge two arrays in JavaScript and de-duplicate items, Generate random number between two numbers in JavaScript. In this link, we will find the solution Link. And then on domain B that is example.com in cookie.php you'll have the following code: Probaly you can use Iframe for this. @Timberman The question is about JavaScript running on a website. Does this study from 2012 speak to the potential long term effects of the mRNA COVID-19 vaccines? Making statements based on opinion; back them up with references or personal experience. it'd better notice in the answer that this is insecure though it works. If you want to pass data to another domain, you can encode this into the url. Say I have a website called a.com, and when a specific page of this site is loaded, say page link, I like to set a cookie for another site called b.com, then redirect the user to b.com. but if things happen. A and B need to share an encryption key. cookie); Theres no way to let a cookie be accessible from another 2nd-level domain, so other.com will never receive a cookie set at site.com. How can I have the name of the first tribe on a newly discovered continent established as the entire continents name, even after kingdoms are formed? you are definitely right. You're circumventing the very intentional cookie protections by basically letting anyone send a crafted GET request to set that cookie to any value they want. Setting Cookies across sub domain javascript pitfall, Cross-Domain Cookie not sent to application after redirect. If you own both pages then 1) You can send the data via query params (http://siteB.com/?key=value), 2) You can create an iframe of Site B inside site A and you can send post messages from one place to the other. Domain attribute of "example.com" or of "foo.example.com" from Sorry, we no longer support Internet Explorer, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, You cannot read cookies in another domain as it poses security risks. Signed up for a talk, not enough material, Finding number of primes less than 10 million using a multithreaded program, EX husband is trying to find out my banking info. My cookie does not carry forward data from one iframe to another in safari, I have a scenario like this: I have parent domain ex: website.com, Inside that I have a iframe with this url ex. How can I remove a specific item from an array? Makes sense. You'd probably need to include a nonce to prevent various MITM attacks. If like in this case everyone can call this domain with their own parameter you can add security by adding another parameter. If not, you can set the cookies with a domain of "mydomain.com". parent.com where I am setting cookie for parent while submitting form so I am setting cookie like this domain=".parent.com" (so it will set cookie for subdomain automatically) domain Another special variable name that you may want to take note of is the domain variable.