Load a web page (HTML,CSS,JS) offline on Android Tablet

I developed a simple website that I need to use as a tool offline, it works fine when the device I use is connected online but I need to use it without any internet connection.

Its simple but the problems I have encountered:

  1. Some images are loaded with javascript so they get refreshed everytime when I lose connection it stops working (caching, preloading doesnt help)
  2. When I copied the whole folder with the files that contanins everything in the android device (tablet) only the index.html gets loaded (the images, js, css are all relative linked).

The website its a game/poll like. Doesnt perform any task with mandatory internet connection.

I tried downloading using chrome to access later but Javascript doesnt work.

The copied version of the website doesnt work on mobile devices, on laptops and desktops they work fine. Also when accessing the website with the android device it works fine.