fix: Allow KID index 0

firebase · May 10, 2023 · be6eb58 · be6eb58
1 parent 4543842
commit be6eb58
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/JWT.php b/src/JWT.php
@@ -439,7 +439,7 @@ private static function getKey(
             return $keyOrKeyArray;
         }
 
-        if (!isset($kid)) {
+        if (empty($kid) && $kid !== '0') {
             throw new UnexpectedValueException('"kid" empty, unable to lookup correct key');
         }