Branch snippet inclusion

[ryanbr]

@@||cdn.branch.io/branch-latest.min.js$script is currently used.

Mozilla is using: https://github.com/mozilla/gecko-dev/blob/master/browser/extensions/webcompat/shims/branch.js

Related ticket: https://bugzilla.mozilla.org/show_bug.cgi?id=1716220 Problem site: https://watch.tatasky.com/

Possible to include a branch snippet rather than having this global exception?

[ghajini]

@gwarser @gorhill
many
https://github.com/mozilla/gecko-dev/tree/master/browser/extensions/webcompat/shims