Weakmap is not referenced as dependency, but is required by package.

[blazkovicz]

Weakmap is not supplied by bower package, but is required in code from '../lib/weakmap'. I can not use weakmap, installed independently.

[archangel-irk]

Weakmap is already included in dist/knockout-es5.min.js and dist/knockout-es5.js

[robkins]

This is still causing issues for me.
var WM = global.WeakMap || require('../lib/weakmap');

Why have this line if the weakmap file doesn't exist?