diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3bc7d11..cf5d737 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,14 @@
 
+# 1.0.0-rc.0 - 1 Mar 2024
+Change:
+- Add support for Elysia 1.0
+
+
+# 1.0.0-beta.1 - 17 Feb 2024
+Change:
+- Add support for Elysia 1.0
+
+
 # 1.0.0-beta.0 - 6 Feb 2024
 Change:
 - Add support for Elysia 1.0
diff --git a/bun.lockb b/bun.lockb
index 06cba55..c1c0190 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/example/index.ts b/example/index.ts
index 15f6edd..699b98e 100644
--- a/example/index.ts
+++ b/example/index.ts
@@ -8,6 +8,11 @@ const app = new Elysia()
         })
     )
     .get('/', () => 'A')
+    .post('/', ({ body, cookie: { session } }) => {
+        session!.value = 'hi'
+
+        return body
+    })
     .listen(3000)
 
 console.log(`Elysia is running at ${app.server?.hostname}:${app.server?.port}`)
@@ -18,6 +23,8 @@ app.handle(
             origin: 'https://saltyaom.com'
         }
     })
-).then(x => x.headers.toJSON()).then(console.log)
+)
+    .then((x) => x.headers.toJSON())
+    .then(console.log)
 
 export type App = typeof app
diff --git a/package.json b/package.json
index d12535c..26ed45b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@elysiajs/cors",
-  "version": "1.0.0-beta.1",
+  "version": "1.0.0-rc.1",
   "description": "Plugin for Elysia that for Cross Origin Requests (CORs)",
   "author": {
     "name": "saltyAom",
@@ -35,12 +35,12 @@
   "devDependencies": {
     "@types/bun": "^1.0.4",
     "@types/node": "^18.11.7",
-    "elysia": "1.0.0-beta.1",
+    "elysia": "1.0.0-rc.12",
     "eslint": "^8.26.0",
     "rimraf": "^3.0.2",
     "typescript": "^5.2.2"
   },
   "peerDependencies": {
-    "elysia": ">= 1.0.0-beta.1"
+    "elysia": ">= 1.0.0-rc.0"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index cbf5c08..e726dd2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -158,7 +158,7 @@ const processOrigin = (
     from: string
 ): boolean => {
     if (Array.isArray(origin))
-        origin.some((o) => processOrigin(o, request, from))
+        return origin.some((o) => processOrigin(o, request, from))
 
     switch (typeof origin) {
         case 'string':
@@ -192,10 +192,10 @@ export const cors = (
         preflight: true
     }
 ) => {
-    const {
+    let {
         aot = true,
-        origin = true,
-        methods = true,
+        origin = '*',
+        methods = '*',
         allowedHeaders = '*',
         exposedHeaders = '*',
         credentials = true,
@@ -203,11 +203,11 @@ export const cors = (
         preflight = true
     } = config
 
-    const app = new Elysia({
-        name: '@elysiajs/cors',
-        seed: config,
-        aot: false
-    })
+    if (Array.isArray(allowedHeaders))
+        allowedHeaders = allowedHeaders.join(', ')
+
+    if (Array.isArray(exposedHeaders))
+        exposedHeaders = exposedHeaders.join(', ')
 
     const origins =
         typeof origin === 'boolean'
@@ -216,6 +216,14 @@ export const cors = (
             ? origin
             : [origin]
 
+    const app = new Elysia({
+        name: '@elysiajs/cors',
+        seed: config,
+        aot
+    })
+
+    const anyOrigin = origins?.some((o) => o === '*')
+
     const handleOrigin = (set: Context['set'], request: Request) => {
         // origin === `true` means any origin
         if (origin === true) {
@@ -226,6 +234,13 @@ export const cors = (
             return
         }
 
+        if (anyOrigin) {
+            set.headers['Vary'] = '*'
+            set.headers['Access-Control-Allow-Origin'] = '*'
+
+            return
+        }
+
         if (!origins?.length) return
 
         const headers: string[] = []
@@ -272,9 +287,11 @@ export const cors = (
 
             if (allowedHeaders.length)
                 set.headers['Access-Control-Allow-Headers'] =
-                    typeof allowedHeaders === 'string'
-                        ? allowedHeaders
-                        : allowedHeaders.join(', ')
+                    allowedHeaders as string
+
+            if (exposedHeaders.length)
+                set.headers['Access-Control-Expose-Headers'] =
+                    exposedHeaders as string
 
             if (maxAge)
                 set.headers['Access-Control-Max-Age'] = maxAge.toString()
@@ -288,9 +305,11 @@ export const cors = (
 
             if (allowedHeaders.length)
                 set.headers['Access-Control-Allow-Headers'] =
-                    typeof allowedHeaders === 'string'
-                        ? allowedHeaders
-                        : allowedHeaders.join(', ')
+                    allowedHeaders as string
+
+            if (exposedHeaders.length)
+                set.headers['Access-Control-Expose-Headers'] =
+                    exposedHeaders as string
 
             if (maxAge)
                 set.headers['Access-Control-Max-Age'] = maxAge.toString()
@@ -301,30 +320,24 @@ export const cors = (
         })
 
     const defaultHeaders: Record<string, string> = {
-        'Access-Control-Allow-Headers':
-            typeof allowedHeaders === 'string'
-                ? allowedHeaders
-                : allowedHeaders.join(', '),
-        'Access-Control-Exposed-Headers':
-            typeof exposedHeaders === 'string'
-                ? exposedHeaders
-                : exposedHeaders.join(', ')
+        'Access-Control-Allow-Headers': allowedHeaders,
+        'Access-Control-Exposed-Headers': exposedHeaders
     }
 
     if (credentials === true)
         defaultHeaders['Access-Control-Allow-Credentials'] = 'true'
 
-    if (app.headers)
-        return app.headers(defaultHeaders).onRequest(({ set, request }) => {
-            handleOrigin(set, request)
-            handleMethod(set, request.method)
-        })
-
-    return app.onRequest(({ set, request }) => {
-        Object.assign(set.headers, defaultHeaders)
-
+    return app.headers(defaultHeaders).onRequest(({ set, request }) => {
         handleOrigin(set, request)
         handleMethod(set, request.method)
+
+        if (allowedHeaders.length)
+            set.headers['Access-Control-Allow-Headers'] =
+                allowedHeaders as string
+
+        if (exposedHeaders.length)
+            set.headers['Access-Control-Expose-Headers'] =
+                exposedHeaders as string
     })
 }