diff --git a/app.js b/app.js
index b611f07..7355c37 100644
--- a/app.js
+++ b/app.js
@@ -14,7 +14,7 @@ app.get("/thumbnail/:b64url", function(req, res) {
       {
         queryStringParameters: req.query,
         pathParameters: {
-          url: req.url.replace("/thumbnail/", "")
+          url: req.url.replace("/thumbnail/", "").split('?')[0]
         }
       },
       null,