[BUG] npm7 doesn't install packages that are only found on GitHub

[vlilloh]

Current Behavior:

It doesn't install packages that are only found on GitHub.

Expected Behavior:

It should install packages that are only found on GitHub.

Steps To Reproduce:

1. With this config in package.json, e.g.: "dependencies": { "@gastromatic/react-dates": "1.0.7" }
2. With this config in .npmrc, e.g.: @gastromatic:registry=https://npm.pkg.github.com
3. Run 'npx [email protected] i'
4. See error:

npm ERR! code EINTEGRITY
npm ERR! sha512-BUAcX26JrA+RHhaVkOCWAK95ffzA4uXgkQyl/TD+yYbRvxK9BpXjqKNxTSVzKosxXHdWPSyKUkl6fDEg3RPg4w== integrity checksum failed when using sha512: wanted sha512-BUAcX26JrA+RHhaVkOCWAK95ffzA4uXgkQyl/TD+yYbRvxK9BpXjqKNxTSVzKosxXHdWPSyKUkl6fDEg3RPg4w== but got sha512-z4PhNX7vuL3xVChQ1m2AB9Yg5AULVxXcg/SpIdNs6c5H0NE8XYXysP+DGNKHfuwvY7kxvUdBeoGlODJ6+SfaPg==. (0 bytes)

With these steps npm6 does install packages that are only found on GitHub.

Environment:

• OS: MacOS 10.15.7
• Node: 14.13.0
• npm: 7.0.0-rc.0

[darcyclarke]

Closing: I believe this is a duplicate of #1800

[farhansolodev]

Did this ever get fixed for you? I've been trying to run:

npx piuccio/cowsay hello world and npx github:piuccio/cowsay hello world
and both just quietly exit after a run of the progress bar.

In contrast, npx cowsay hello world works fine.

Update:
Downgrading npm to v6 by running npm install -g npm@6 fixed my issue.