Issue with BoundingBox.min and BoundingBox.max

[Chipaka]

Hi,
Everything on my project worked well since a couple of day ago (thinking about an update on my browser) but now I have an error "Cannot read proprety of undefinned" for BoundingBox.min and BoundingBox.max

This error can be seen on the line 5166.
I think It's linked to the size of the text in the function 'createText'

I don't have big skills in javascript/jquery but If anyone have any idea of where to look to correct it, I'd be glad to hear.
Thank you

[Chipaka]

After further investigation it might be a font/typo problem but i still don't know where it comes from