fix: taking substring only if input is a string

cloudinary · May 2, 2023 · b9d8266 · b9d8266
1 parent d862be8
commit b9d8266
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/utils/isRemoteUrl.js b/lib/utils/isRemoteUrl.js
@@ -7,7 +7,7 @@ const isString = require('lodash/isString');
  */
 function isRemoteUrl(url) {
   const SUBSTRING_LENGTH = 120;
-  const urlSubstring = url.substring(0, SUBSTRING_LENGTH);
+  const urlSubstring = isString(url) && url.substring(0, SUBSTRING_LENGTH);
   return isString(url) && /^ftp:|^https?:|^gs:|^s3:|^data:([\w-.]+\/[\w-.]+(\+[\w-.]+)?)?(;[\w-.]+=[\w-.]+)*;base64,([a-zA-Z0-9\/+\n=]+)$/.test(urlSubstring);
 }