Security issues: old libraries, CSP...

[juju4]

Uncertain if still maintained but there are multiple issues identified from
https://crxcavator.io/report/ljdgplocfnmnofbhpkjclbefmjoikgke/3.0.6

• many vulnerabilities associated to retirejs: bootstrap, jquery, moment, background
• permissive content-security policy. something like https://github.com/ninoseki/mitaka/pull/477/files would help
• less rated but possible entry points, external javascript on https://oss.maxcdn.com

Would be great to fix.
Thanks!