While still trying to (ab)use my old iPad with iOS 9(!) as a permanent wall display I suddendly stumbled over these mysterious errors which are hard to explain and track down:
The iPad was able to display most of the UI elements. I was in the process to install the canvas-gauges library in my static folder and first test where promising. The gauges displayed fine on this old device.
However suddenly (and I mean really suddenly!) the iPad refuses to display any dashboard content, simply showing a blank page.
Of course I was trying to roll back to the NR state but nothing changed. Something (on server or client side is blocking the dashboard completely..
- how can I get a log file of the NR http server (on my Raspberry3). There is nothing in syslog, nothing in lighttpd/access.log
Actually Safari on that iPad can still load some other web pages..