Why Isn\'t My Browser Saving Cookies?

Browser Not Saving Cookie: Troubleshooting and Resolution

Despite setting the cookie in the server response, the browser may fail to save it. To resolve this, consider the following:

1. Allow Credentials:

   Ensure that you have enabled credentials for cross-origin requests by setting both the AllowCredentials flag in the CORS handler and the credentials flag to "include" in the request sending the cookie.

   r.Use(cors.Handler(cors.Options{
       AllowCredentials: true,
   }))
   // Fetch API request:
   fetch(`${url}/login`, {
       credentials: "include"
   })

   Copy after login

2. Cookie Secure Flag:

   If you are using HTTPS, add Secure: true to your cookie settings. Browsers do not save cookies that do not have this flag set when accessed over HTTPS.

   cookie := &http.Cookie{Name: ..., Value: ..., Secure: true}

   Copy after login

3. Cookie Time Limitations:

   Check if the cookie has a limited lifetime (e.g., MaxAge or Expires is set), as the browser will not save cookies that expire too soon.

4. SameSite Cookie Settings:

   Ensure that the SameSite setting of the cookie is appropriate for your application. Incorrect settings may prevent the browser from saving the cookie.

5. Other Browser Settings:

   Check your browser's cookie settings to ensure that cookies are not being blocked. Additionally, private browsing or incognito mode may disable cookie storage.

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