How to reload Bokeh document in Bokeh server + Flask

Hello everyone,

I have the following question. I run application with Bokeh server + Flask.
Flask packs the Bokeh JS code into the pages and Tornado is a web server.
I need to fully reload the page with all variables reinitialized (Bokeh document ) by clicking on the very same page a button ? How this is can be achieved ?

This doesn’t really seem like a Bokeh question. To reload a page from JS code AFAIK you can call location.reload().