Local HTML pages (HTTP Based) are not working after being deploying in Android

I created an application with ionic 3. In which i included canvas(pde) based html files as well, which need HTTP server to run.
So while doing ionic serve, it was working but when I deployed in my android, basic html of the html files were working but the pde(http based) are not working.
How can I make HTTP work in my phone without using any external connection?