gh-pages support about jekyll-pwa

[torrocus]

In README.md @xiaoiver wrote that:
"This plugin has been used in my blog so that you can see the effect."

At his page PWA works correctly and in Gemfile he uses github-pages.

So theoretically everything works.
But looking at the code of his site I have no idea how.
He has two branches master and gh-pages and I don't know which one is displayed on xiaoiver.github.io.
In my opinion, he doesn't use anywhere jekyll-pwa plugin.
There is no proper configuration in the _config.yml file.

[souldanger]

it works on gh-pages - see https://xiaoiver.github.io - which is obviously a GitHub domain...

[bsde1245]

He may be hosting in gh-pages, but deployed somewhere else like heroku. I think it won't work in gh-pages.