diff --git a/functions/api/comments.js b/functions/api/comments.js
index 13dba4e..d2fcad8 100644
--- a/functions/api/comments.js
+++ b/functions/api/comments.js
@@ -1,21 +1,36 @@
-const json=(d,o={})=>{const h=new Headers(o.headers);h.set('Content-Type','application/json');return new Response(JSON.stringify(d),{...o,headers:h})};
+const json=(d,o={},req)=>{const h=new Headers(o.headers);h.set('Content-Type','application/json');const origin=req?.headers.get('Origin');if(origin?.endsWith('.speech.capital')){h.set('Access-Control-Allow-Origin',origin);h.set('Access-Control-Allow-Credentials','true');h.set('Access-Control-Allow-Methods','POST,OPTIONS');h.set('Access-Control-Allow-Headers','Content-Type')}return new Response(JSON.stringify(d),{...o,headers:h})};
 const cookie=c=>(c.match(/auth_user=([^;]+)/)?.[1]||null);
 const hash=c=>(c.match(/auth_hash=([^;]+)/)?.[1]||null);
 const tsEq=(a,b)=>{if(!a||!b)return!1;let d=a.length^b.length;for(let i=0;i<a.length;i++)d|=a.charCodeAt(i)^b.charCodeAt(i);return d===0};
 const auth=async(req,db)=>{const c=req.headers.get('Cookie')||'',u=cookie(c),h=hash(c);if(!u||!h)return null;const user=await db.prepare('SELECT id,username,role,pass_hash FROM users WHERE username=?').bind(u).first();return user&&tsEq(user.pass_hash,h)?user:null};
 
+export async function onRequest({request,env}){
+  if(request.method==='OPTIONS'){
+    const h=new Headers();
+    const origin=request.headers.get('Origin');
+    if(origin?.endsWith('.speech.capital')){
+      h.set('Access-Control-Allow-Origin',origin);
+      h.set('Access-Control-Allow-Credentials','true');
+      h.set('Access-Control-Allow-Methods','POST,OPTIONS');
+      h.set('Access-Control-Allow-Headers','Content-Type');
+    }
+    return new Response(null,{status:204,headers:h});
+  }
+  if(request.method==='POST')return onRequestPost({request,env});
+}
+
 export async function onRequestPost({request,env}){
   try{
     const user=await auth(request,env.D1_SPCHCAP);
-    if(!user)return json({error:'Unauthorized'},{status:401});
+    if(!user)return json({error:'Unauthorized'},{status:401},request);
     
     const{post_id,parent_id,content}=await request.json();
-    if(!post_id||!content)return json({error:'Missing fields'},{status:400});
+    if(!post_id||!content)return json({error:'Missing fields'},{status:400},request);
     
     const{meta}=await env.D1_SPCHCAP.prepare('INSERT INTO comments(post_id,user_id,parent_id,content)VALUES(?,?,?,?)').bind(post_id,user.id,parent_id||null,content).run();
     await env.D1_SPCHCAP.prepare('UPDATE posts SET comment_count=comment_count+1 WHERE id=?').bind(post_id).run();
     if(parent_id)await env.D1_SPCHCAP.prepare('UPDATE comments SET reply_count=reply_count+1 WHERE id=?').bind(parent_id).run();
     
-    return json({id:meta.last_row_id},{status:201});
-  }catch(e){return json({error:{message:e.message}},{status:500})}
+    return json({id:meta.last_row_id},{status:201},request);
+  }catch(e){return json({error:{message:e.message}},{status:500},request)}
 }