1 files changed, 1 insertions, 1 deletions

diff --git a/beamer/viewer/viewer.js b/beamer/viewer/viewer.js
index 28c0187..d8d7668 100644
--- a/beamer/viewer/viewer.js
+++ b/beamer/viewer/viewer.js
@@ -107,7 +107,7 @@ class Viewer {
 
   _hash_params() {
     const queryDict = {};
-    location.hash.substr(1).split("&").forEach(item => {
+    location.hash.slice(1).split("&").forEach(item => {
       const pair = item.split("=");
       queryDict[pair[0]] = pair[1];
     });