I have an application which consists of 2 plots and one table, layed out horizontally in a row. While everything works OK if I access the bokeh server directly, the layout is completely broken if I access it through the autoload_server tag behind a flask webserved. I removed all custom css from the site. It is just a heading and the bokeh script tag. The row layout is still destroyed in embedded mode. The exact same code worked in bokeh 0.11. After upgrading to bokeh 0.12 I see this behaviour.