From 1b6d1de059818bd8d1b67cf38dbce7e35e861e13 Mon Sep 17 00:00:00 2001
From: Bruno Windels <bruno@windels.cloud>
Date: Tue, 14 Sep 2021 10:48:27 +0200
Subject: [PATCH] don't accept empty identifiers

---
 src/Link.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Link.js b/src/Link.js
index 72dd539..9261b7f 100644
--- a/src/Link.js
+++ b/src/Link.js
@@ -131,6 +131,9 @@ export class Link {
     }
 
     static _parse(identifier, eventId = undefined, clientId = null, viaServers = [], webInstances = {}) {
+        if (!identifier) {
+            return null;
+        }
         let matches;
         matches = USERID_PATTERN.exec(identifier);
         if (matches) {