chrome-devtools-frontend
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Chrome DevTools UI
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# Make sure a cookie is using the SameParty attribute correctly
Setting cross-site cookies with the `SameParty` attribute is only possible if
both domains are a part of the same First-Party Set.
To allow setting cross-site cookies, try one of the following:
* If the domains satisfy the First-Party Set criteria, add them to the same First-Party Set.
* If the domains don't satisfy the First-Party Set criteria, remove the `SameParty` attribute and specify `SameSite=None`.
If you don't have the option to do any of the above, cookies are not intended to be set in cross-site contexts.