Possible bug in the 4.9.2 javascript

[coderdnewbie]

I have started to get the following error in 4.9.2 (see screenshot). Is this a bug or have I done something wrong.

Is this an issue?

Thanks.

[coderdnewbie]

It was ok in 4.9.0 (an earlier version), but I can see the above error in 4.9.1 as well. This is what it looked like in 4.9.0

[vnbaaij]

This is probably because of #2425. Will be fixed soon