feat: import from notion2site repo

1 files changed, 29 insertions, 0 deletions

diff --git a/src/handle-options.js b/src/handle-options.js
new file mode 100644
index 0000000..62cb977
--- /dev/null
+++ b/src/handle-options.js
@@ -0,0 +1,29 @@
+const allowedMethods = 'GET, HEAD, POST, PUT, DELETE, TRACE, PATCH, OPTIONS'
+
+export function handleOptions(request) {
+  // Make sure the necessary headers are present for this to be a valid pre-flight request
+  if (
+    request.headers.get('Origin') !== null &&
+    request.headers.get('Access-Control-Request-Method') !== null &&
+    request.headers.get('Access-Control-Request-Headers') !== null
+  ) {
+    // Handle CORS pre-flight request.
+    return new Response(null, {
+      headers: {
+        'Access-Control-Allow-Origin': '*',
+        'Access-Control-Allow-Methods': allowedMethods,
+        'Access-Control-Allow-Headers': request.headers.get(
+          'Access-Control-Request-Headers'
+        )
+      }
+    })
+  } else {
+    // Handle standard OPTIONS request.
+    // If you want to allow other HTTP Methods, you can do that here.
+    return new Response(null, {
+      headers: {
+        Allow: allowedMethods
+      }
+    })
+  }
+}