How to update a title from bokehJS

@oviquezr it’s unclear to me that this is the same issue, because this issue is all over the place, and involves quite old versions. Rather than resurrect an old dead thread, please make a brand new topic and absolutely most importantly: include a complete minimal reproducer that illustrates exactly what your are attempting. (The code in your GH issue is not complete, i.e cannot be copy and pasted and run without modifications)