https://bareproxy.com/tags/api/ Recent content in Api on BareProxy.com Hugo en-us Thu, 08 Oct 2026 00:00:00 +0000 https://bareproxy.com/bareproxy-cors-plugin-cross-origin-rules-and-preflight-answers-for-apis/ Thu, 08 Oct 2026 00:00:00 +0000 https://bareproxy.com/bareproxy-cors-plugin-cross-origin-rules-and-preflight-answers-for-apis/ <p><strong>Status: built, number 2 of 21 in BareProxy&rsquo;s build order, and out in BareProxy 0.4.0</strong> as <code>cors.wasm</code> on the <a href="https://github.com/BareProxy/bareproxy/releases/latest">releases page</a>. It only touches headers, which is why it came second. Its manual is the <a href="https://github.com/BareProxy/bareproxy/tree/main/plugins/cors">README in the code repository</a>.</p> <p>A web page on one origin that calls an API on another runs into the browser&rsquo;s same-origin policy. The API has to say which origins may call it, with which methods and headers, in <code>Access-Control-*</code> response headers. Before most calls, the browser first sends an <code>OPTIONS</code> preflight request and waits for the answer.</p>