How to change the relative path for all assets for an application built using angular-cli?

Question

For various reasons, I need to have the index.html file for my Angular2 application separate from all other files for the application (javascript, vendor files, assets, etc.). All other files should also be in a subdirectory of my domain. Here is an example:

assets/
    my_app_assets/
         main.js
         app/
         vendor/
html/
    index.html

I know how to tell the assembly process of angular-cli to output files like this, but I can’t understand for life how to specify relative paths in index.htmlto point to domain.com/assets/my_app_assets/main.jsinstead domain.com/main.js.