fix: make forking work in the browser

[davidmurdoch]

Ganache's zero-config forking feature now works in the browser!

[davidmurdoch]

You can test this by checking out this branch and then running:

$ npm run reinstall && INFURA_KEY=<YOUR INFURA KEY  HERE> npm run build && npm run docs.build && npm run docs.preview

then paste the following in any of the editors:

const p = ganache.provider({fork:"mainnet"});
console.log(await p.request({method:"debug_traceTransaction", params:["0x560900937892cd888a685c836f666804e05e04f3d161e1751ffb5ab7809c55d9"]}));

then wait a while for the result to appear (it can takes a lot of time).

Additionally, you should test the http handler code (the above tests WebSockets):

const p = ganache.provider({fork:{url: "<your infura url goes here>"}});
console.log(await p.request({method:"debug_traceTransaction", params:["0x560900937892cd888a685c836f666804e05e04f3d161e1751ffb5ab7809c55d9"]}));

Example:

[jeffsmale90]

🚢 it!

[MicaiahReid]

Soooo cooooooool! All it needs is a release-ready PR description!

I've also pushed two changes to the README to this branch if you could review them. Let me know and I can remove this commits from your branch, I just knew you were out of town and thought it would be easier to push than have you go in and update the README.

[davidmurdoch]

blocked by #3275

There are no changes to address but GitHub demands I address them.