Changes between Initial Version and Version 1 of Ticket #43005, comment 6
- Timestamp:
- 01/05/2018 07:10:21 PM (7 years ago)
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Ticket #43005, comment 6
initial v1 2 2 3 3 The main reason is in update.js we are listening for `message` event which is produced by `window.postMessage()`. Now, if any of the enqueued scripts has `postMessage('', 'http://yourdomain.com')`, then the `message` will be null and hence, `message.action` throws `Cannot read property 'action' of null` error. 4 5 By the way, my reproduce plugin will throw the error in some of the admin pages, like plugins.php. But typing `postMessage('', 'http://yourdomain.com')` will give the error in any of the admin pages.