Hi,
We've been working with setting up a SMART application and we're having troubles launching from PowerChart.
We've set up a publicly available domain but still cannot get our app to launch from PowerChart.
We've been able to launch from Cerner Code console with the public endpoint so we know it's not a logical fault.
I tested my site with the Palo Alto site filtering as mentioned in this thread from the old Google forums
and got this: 
Is this the issue? Or have we missed a step when setting up our app?