Quite recently I have been having an issue of using the space bar.  Sometimes it simply does not work in Canvas.

Then, I will backspace and delete what I wrote and it starts working again...but could just as easily stop.

This is not a problem with my keyboard (as you can see) and rebooting did not solve the problem.  

It is a frustrating bug because the issue is intermittent.  

I am using Chrome, so the issue may deal with the interaction between the browser and Canvas. 

Thanks,

FC