Do not use postMessage on file:// protocols

Fixed zloirock#770
dtinth · Feb 17, 2020 · a245d47 · a245d47
1 parent 4546ffe
commit a245d47
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/core-js/internals/task.js b/packages/core-js/internals/task.js
@@ -76,7 +76,7 @@ if (!set || !clear) {
     defer = bind(port.postMessage, port, 1);
   // Browsers with postMessage, skip WebWorkers
   // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
-  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts && !fails(post)) {
+  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts && !fails(post) && location.protocol !== 'file:') {
     defer = post;
     global.addEventListener('message', listener, false);
   // IE8-