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Only the domain which created the cookie can read its cookie. So you have to read the cookie from within the iframe and then pass it to the parent window. If you don’t have access or control over the page in the iframe then there is no way to get the cookie value.
Visiting the child page in its own window and performing the operation works in all browsers, including Chrome. I’ve tried both of these options in all permutations: Set secure:false or secure:true for the cookie. Set sandbox=”allow-same-origin allow-scripts” for the iframe, or remove the sandbox attribute.
Do cookies work in iframe?
1 Answer. You can’t share cookies across domains. You may share across subdomains. So, if your domain wrote the cookie stored on the client – whether in an iframe from other site or stored by visiting your main site, your domain should be able to access it.
Will iframe work if JavaScript is disabled?
Since Data Layer fully relies on JavaScript, it will not work when JS is disabled, unless a developer decorates the iframe link with query parameters. Read more about that here.
Can a parent Cookie be used in an iframe?
These articles tackle the general problem of passing the Client ID from the parent to the . By doing so, the can take the Client ID from the frame URL and create the _ga cookie in the , allowing hits from the parent and the to use the same Client ID.
How to confirm that an embedded iframe can read?
For iframes that are actually same-origin and are either not sandboxed or have the allow-same-origin sandbox attribute value, window.parent.document.cookie will let you set or read (non- HttpOnly) cookies. One approach that you might expect to work cross-origin is top navigation.
Can a iframe read a parent’s url?
Even cross-origin iframes can, if not sandboxed (or if the sandbox has allow-top-navigation ), set (but not get) the URL of their parent.
How to read a cookie from a parent site?
I need to read this cookie inside the parent site. I used the above methods to read the cookie. But it was not successful. Please advice me on this. I’m getting empty array for cookies though I Can see the cookie in my browser. To get a cookie by name use this function ( from stackoverflow ):