diff --git a/server.js b/server.js
index 40a726c..d436744 100644
--- a/server.js
+++ b/server.js
@@ -435,7 +435,7 @@ const server = http.createServer(async (req, res) => {
     //    Codes resolve LATE (at buy time) to whatever chain id the referrer
     //    has by then, so free members refer from day one.
     let m = /^\/join\/([A-Za-z0-9_]{1,20})$/.exec(p);
-    if (m && req.method === 'GET') {
+    if (m && (req.method === 'GET' || req.method === 'HEAD')) {
       // lead-capture page: email first, wallet later. ?v=<angle> picks the hook
       // copy and is remembered so the account records which angle converted.
       const tok = m[1].toLowerCase();