Remember sameSite works with express latest version only as at now and latest chrome version only set cookie over https, thus the need for secure option. I set my origin dynamically using config npm module.įor localhost: you do not need to set sameSite and secure option at all, you can set httpOnly to true for http cookie to prevent XSS attack and other useful options depending on your use case.įor production environment, you need to set sameSite to none for cross-origin request and secure to true. In CorsOption: Set origin to your localhost url or your frontend production url and credentials to true The desired result is something like this:įor express, upgrade your express library to 4.17.1 which is the latest stable version. Reads it from the cookie when needed and writes it in the header of every request. The second part is the one that specifically handles an anti-CSRF token for all requests. This practically means that an OPTION request will be send first, so that you get your cookies and the authorization token among them, before sending the actual POST/PUT/DELETE requests, which need this token attached to them (in the header), in order for the server to verify and execute the request. Res.cookie('token', 'xxx-xxx-xxx', ), is what you need in order to send each request with withCredentials: true option. I'm using the request module in a React-Redux app to issue a request to a /signin endpoint on the server. I don't see any CORS errors, so I assume I'm missing something else. Yet, I can't see a cookie being set in in the Application tab under Storage/Cookies. Set-Cookie: token=0d522ba17e130d6d19eb9c25b7ac58387b798639f81ffe75bd449afbc3cc715d6b038e426adeac3316f0511dc7fae3f7 Max-Age=86400 Domain=localhost:4000 Path=/ Expires=Tue, 21:11:36 GMT HttpOnlyĬontent-Type: application/json charset=utf-8įurthermore, I can see the cookie under Response Cookies when I inspect the traffic using the Network tab of Chrome's developer tools. These are the response headers:Īccess-Control-Allow-Origin: Vary: Origin, Accept-Encoding It seems I'm receiving the right response headers in the browser, but unfortunately they have no effect. I am attempting to set a cookie for an API that is running on localhost:4000 in a web app that is hosted on localhost:3000. How to share cookies cross origin? More specifically, how to use the Set-Cookie header in combination with the header Access-Control-Allow-Origin?
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