NPM has problems with installing package due to git dependency

[pzmarzly]

~/uniread on master ⨯ sudo npm install -g
npm ERR! code 128
npm ERR! Command failed: /usr/bin/git clone --depth=1 -q -b zipread https://github.com/nemanjan00/epub.git /root/.npm/_cacache/tmp/git-clone-257f0870
npm ERR! fatal: could not create leading directories of '/root/.npm/_cacache/tmp/git-clone-257f0870': Permission denied
npm ERR!

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2018-10-10T14_45_47_348Z-debug.log

Manjaro, latest npm

Suffix 257f0870 is random every time.

Either NPM or Git is dropping privileges, while preventing me to set permissive flags on _cacache (chmod 777).

Possible solutions

1. Put contents of https://github.com/nemanjan00/epub/tree/zipread to a seperate repo.
2. Use "epub": "nemanjan00/epub#zipread", which seems to work for some strange reason, but is a bit undocumented, and may be insecure if julien-c has push privilege to that branch.
3. Use "epub": "^1.1.0", but I haven't checked if its licensing issues have been resolved.

[pzmarzly]

Now I cannot reproduce solution 2 working... I guess I will never understand NPM.

[nemanjan00]

They did not solve licensing problems yet...

I did send PR.