fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
fix appcache errors
add comments to chart.js & try to fix sync errors