diff --git a/handlers.go b/handlers.go
index 40bb39b..9099f14 100644
--- a/handlers.go
+++ b/handlers.go
@@ -68,6 +68,7 @@ func wsWasmFile(w http.ResponseWriter, r *http.Request) {
 	if settings.NoCache {
 		w.Header().Set("Cache-Control", "no-cache, must-revalidate")
 	}
+	common.LogDebugln("[static] serving wasm file")
 	http.ServeFile(w, r, "./static/main.wasm")
 }
 
diff --git a/static/js/chat.js b/static/js/chat.js
index 398bd26..ebe70ec 100644
--- a/static/js/chat.js
+++ b/static/js/chat.js
@@ -59,7 +59,11 @@ function getWsUri() {
     if (port != "") {
         port = ":" + port;
     }
-    return "ws://" + window.location.hostname + port + "/ws";
+    proto = "ws://"
+    if (location.protocol == "https:") {
+        proto = "wss://"
+    }
+    return proto + window.location.hostname + port + "/ws";
 }
 
 let maxMessageCount = 0