throw simpler errors on some invalid inputs

[squeep-mystery-box] / lib / common.js

diff --git a/lib/common.js b/lib/common.js
index fb3ec979524e668bfc5b85dded22a42c56117f41..a47226f6e76fe355416380f3a77db24450481783 100644 (file)
--- a/lib/common.js
+++ b/lib/common.js
@@ -25,6 +25,9 @@ const fileScope = (filename) => {
  * @returns {String}
  */
 const base64ToBase64URL = (input) => {
+  if (!input) {
+    return input;
+  }
   return input
     .replace(/=/g, '')
     .replace(/\+/g, '-')
@@ -38,6 +41,9 @@ const base64ToBase64URL = (input) => {
  * @returns {String}
  */
 const base64URLToBase64 = (input) => {
+  if (!input) {
+    return input;
+  }
   return base64RePad(input)
     .replace(/-/g, '+')
     .replace(/_/, '/');