Istanbul with webpack, getting `require.context` is `undefined`

Question

When using karma-webpack and istanbul-instrumenter-loader or isparta-loader, I get an error when attempting to implement it.

require.context comes up as undefined.

I believe this is because it is using/finding nodejs require and NOT webpack, as Object.keys(require) logs as ['keys', 'resolve', 'id'].

Answer 1

It looks like require.context is working, but require alone would use node. This may have something to do with the way that webpack doesn’t always treat object syntax as an actual object.

Therefore require has nothing to do with require.context. It is likely a regex function replace during build-time.