How to use appcache?

I am trying to use appcache package but if I go offline using chrome device emulator or if I stop my meteor application, my application stops working.
Below is my app which displays bird which was saved inside public directory.
When I start app while online I get: Application Cache Progress event (40 of 43

img src=“Bird.png”/>

I had cache disabled on Chrome.
So how do I delete the topic? :smile: