Only check if ACL is an array if it's not null

Author: dannyv-cloudinary

lib-es5/auth_token.js

@@ -65,11 +65,11 @@ module.exports = function (options) {
   }
   tokenParts.push(`exp=${options.expiration}`);
   if (options.acl != null) {
+    if (Array.isArray(options.acl) === true) {
+      options.acl = options.acl.join("!");
+    }
     tokenParts.push(`acl=${escapeToLower(options.acl)}`);
   }
-  if (Array.isArray(options.acl) === true) {
-    options.acl = options.acl.join("!");
-  }
   var toSign = [].concat(tokenParts);
   if (options.url != null && options.acl == null) {
     var url = escapeToLower(options.url);

lib/auth_token.js

@@ -61,11 +61,11 @@ module.exports = function (options) {
   if (options.start_time != null) {
     tokenParts.push(`st=${options.start_time}`);
   }
-  if (Array.isArray(options.acl) === true) {
-    options.acl = options.acl.join("!");
-  }
   tokenParts.push(`exp=${options.expiration}`);
   if (options.acl != null) {
+    if (Array.isArray(options.acl) === true) {
+      options.acl = options.acl.join("!");
+    }
     tokenParts.push(`acl=${escapeToLower(options.acl)}`);
   }
   let toSign = [...tokenParts];