Avoid mutating the passed-in options for babel-register (#6542)

2017-10-23 15:49:10 -07:00 · 2017-10-23 15:49:10 -07:00 · 11d8e0555f
commit 11d8e0555f
parent 70818c3db8
1 changed files with 2 additions and 0 deletions
--- a/packages/babel-register/src/node.js
+++ b/packages/babel-register/src/node.js
@ -97,6 +97,8 @@ register({
 });

 export default function register(opts?: Object = {}) {
+  // Clone to avoid mutating the arguments object with the 'delete's below.
+  opts = Object.assign({}, opts);
  if (opts.extensions) hookExtensions(opts.extensions);

  if (opts.cache === false) cache = null;