sessionMode: Fix modeName extraction

The slice() function expects two numbers as parameters. Pass zero
in order to properly strip the suffix.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/4084>

diff --git a/js/ui/sessionMode.js b/js/ui/sessionMode.js
index bdcdf7f5f55744ff24a601b164ad26f4ce8eb6c3..ad7502e6a70e96e7f308fc7a22e78df01ef4d4b4 100644 (file)
--- a/js/ui/sessionMode.js
+++ b/js/ui/sessionMode.js
@@ -102,7 +102,7 @@ const _modes = {
 function _loadMode(file, info) {
     const name = info.get_name();
     const suffix = name.indexOf('.json');
-    const modeName = suffix === -1 ? name : name.slice(name, suffix);
+    const modeName = suffix === -1 ? name : name.slice(0, suffix);
 
     if (Object.prototype.hasOwnProperty.call(_modes, modeName))
         return;