Update : my x-frame-options same origin policy was set to deny. I removed it and installed wordpress again. Now it is solved.
I am having the same issue.
Things that i have tried.
Used this code in wp-config.php
1.define('CONCATENATE_SCRIPTS', false );
2.Cleared browsers cache.
3.Tried in incognito mode
4. Cleared all the website caches from servers to cache plugins everything was cleared.
5.Re-Installed wordpress installation but no luck 🙁
6. Disabled all the plugins
I tried everything but couldn’t manage to get the visual editor working.
Error log in console :
Uncaught TypeError: Cannot read property 'controlManager' of undefined
at n (plugin.min.js?ver=4711-20180425:1)
at Object.<anonymous> (plugin.min.js?ver=4711-20180425:1)
at b.e [as fire] (tinymce.min.js?ver=4711-20180425:6)
at Object.fire (tinymce.min.js?ver=4711-20180425:6)
at new q (tinymce.min.js?ver=4711-20180425:14)
at g (tinymce.min.js?ver=4711-20180425:14)
at Array.<anonymous> (tinymce.min.js?ver=4711-20180425:14)
at b (tinymce.min.js?ver=4711-20180425:1)
at k (tinymce.min.js?ver=4711-20180425:14)
at h.l.bind (tinymce.min.js?ver=4711-20180425:1)
