SHA hash mismatch?

[allthesignals]

I spun up an ember app today, I want to push it to GH pages, however, in Firefox, it redirects to the same route:

https://allthesignals.github.io/labs-upad-validate/labs-upad-validate/ (<- WHAT?!?!?!)

This was after trying something to address this error:

None of the “sha512” hashes in the integrity attribute match the content of the subresource.

(I reverted but) Why am I seeing errors about sha512 hash? I'm sure this is a really interesting part of web technology but why is Ember build giving me issues here?

In Chrome, it throws a bunch of console errors about broken links to asset files. Yes, I suspect I can address this problem by... what is it? Update rootURL? Add the prepend property to fingerprints in ember-cli-build?

Here's my repo now: https://github.com/allthesignals/labs-upad-validate.

Is there an implicit step that's missing from the README that we should add to avoid this? Sometimes I just want to push up a prototype of something to GH pages, but somehow I end up missing some hidden step. I just cannot see where I am failing to follow the instructions. This is not an org page or a user page (which I assume means the page that appears when you go to the user root page).

Please advise and I will be happy to PR an extra note to the README which I believe followed faithfully, thanks.

[knownasilya]

When installing with ember install it should run this code https://github.com/poetic/ember-cli-github-pages/blob/master/blueprints/ember-cli-github-pages/index.js#L25, which should avoid this issue as long as you build for production (should be the default in this case).