{"version":"2.1.312","anchor":"first-party-http-requests-refuse-cross-origin-redirects","canonical_anchor":"first-party-http-requests-refuse-cross-origin-redirects","heading":"Requests to Anthropic no longer follow redirects to another site","tier":"notice","area":"Internals","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.312\/e\/first-party-http-requests-refuse-cross-origin-redirects","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.312","markdown":"### Requests to Anthropic no longer follow redirects to another site\n\nClaude Code's own requests to Anthropic now stop with an error if they are redirected to a different site\n\n**What**\n\nA redirect is when a server tells the client to fetch the request from a different address. When Claude Code sends its own requests to Anthropic and redirects are allowed, it now stops with the error \"first-party request redirected to another origin\" if the new address is on a different site.\n\nThe requests that load your account profile and exchange sign-in tokens also share an extra request setting.\n\n**Why**\n\nThis keeps your credentials from being sent to another site. If you use a proxy that redirects requests, you may now see this error.\n\n- Area: Internals\n- Tier: You'll notice\n- Useful: 1\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}