Hi,

I did a quick implementation to hopefully resolve #36.

I tested the following serverless.yml file, and was able to successfully deploy the worker just to my workers.dev subdomain:

The additional toggle I added was "zoneless: true/false" which automatically enables the workers.dev route - this can also be used for zone-based functions. I figured this might be useful so you don't have to go into the UI and toggle the worker on after deployment.

service: zone-test

frameworkVersion: '2'

provider:
  name: cloudflare
  config:
    accountId: <account id here>

plugins:
  - serverless-cloudflare-workers

functions:
  hello:
    name: hello
    zoneless: true
    script: helloWorld # there must be a file called helloWorld.js

Let me know if there's any issues!