Update topology.js and dijkstra.js

[eric183]

https://codesandbox.io/s/8y2f7?file=/src/index.js

Here's the sandbox reappearing this error

[perliedman]

This is an ongoing problem when you bundle with Webpack (which I guess is where you encounter this?), see for example webpack/webpack#4742. Applying your fix will unfortunately break the module for anyone not using Webpack, which is not acceptable.

I would be happy to make changes to for example package.json to work around this if possible, but fiddling with normal, working CommonJS requires simply is not something I think I should be responsible for as a module maintainer.