Report debugLayer - Uncaught TypeError in Bugs Posted October 28, 2017 On 24.10.2017 at 3:58 PM, Temechon said: What browser are you using ? Hi Chromium "61.0.3163.100 (Official version) Built on Ubuntu , running on Ubuntu 17.04 (64-bit)" but this happens on Firefox as well, only message is a little bit different ( version 56.0 64-bit, Ubuntu as well, Xubuntu 17.04 exactly ) Frefox message: TypeError: i is null[Więcej informacji] babylon.inspector.bundle.js:408:5002 INSPECTOR</t.prototype.openPopup http://webgl.local:3000/js/babylon.inspector.bundle.js:408:5002 t http://webgl.local:3000/js/babylon.inspector.bundle.js:408:464 t.prototype._createInspector http://webgl.local:3000/js/babylon3.0.custom.js:37:5625 t.prototype.show On Chromium Windows 7 it is similar, BUT browser shows there information about blocked popup. So I added my website to exception list in popup blocking options, after that it started to work, and no errors in console. It was a bit confusing, because popup worked fine when it was creaded by user click, so blocking is only about automated popup show. So looks like console error is only because code assumes popup was always created correctly and not blocked.