The set of domains used by Salesforce is changing in Winter ’23 for sandbox and non-prod orgs (starting in August 2022), and in Spring ’23 for all other orgs (starting in February 2023). This change can affect your code, configurations, API integrations, SSO, documentation, and bookmarks. In this blog, we’ll discuss identifying, evaluating, and resolving compatibility issues related to this change.
Why are hostnames changing?
As a result of regulatory and consumer pressure, the major web browsers are blocking third-party cookies. Cookies are small files that web browsers store on your computer, and each cookie is associated with the domain that created it. When a browser makes a request from a domain, it appends all cookies that it has stored for that domain. This process allows servers to recognize you when you move between pages. For example, after you log into a website, the browser stores an authentication cookie locally,
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