Sorry but not working as expected.
Maybe ABmaterial problem afterall.
I does start automatic on startup but I keep getting the material waiting circle.
When I kill the service on the raspberry and run it with the sh command It does the job !
Those errors look like you are missing the files in /css, /js and /fonts in the /www folder. You have to copy the whole /www folder manually over to the pi
Just a check if the KraanServer is running from a Raspberry Pi Terminal:
Login to the Raspberry Pi, open a terminal, set the kraanserver folder and start KraanServer.jar: (based on Post #9 folderinfo)
cd home/pi/kraanserver
sudo java -jar KraanServer.jar
Please ensure to use the right case to start the KraanServer!
Even in rc.local it didn't work.
I erased all the files ans setup up the raspberry again.
Then I copied the files needed the run the webapp and put in rc.local the sh file.
Now everything run s OK !