Is it possible to execute a php script from a javascript code embedded into bokeh?

Hi,

because of the amount of files (500+ every time) I had to transfer to the bokeh server I had to use a different file browser that the widget bokeh provides.
I settled on Dropzone, but in order to make the transfer happen, drop zone requires a URL where to pass the files for copying. I though I could simply pass a “/mytransfer.php” script, but bokeh can’t see that path.
Right now bokeh logs a 404 can’t find /mytransfer.php
Is it possible to have bokeh use files (need a proper directory structure?) other than the main py file?

thanks in advance

Fabio