@gatsbystorefront/gatsby-theme-storefront-shopify fails to build on Netlify

gistfile1.txt

`Netlify Deply Log`

```
error "gatsby-source-shopify" threw an error while running the sourceNodes lifecycle:
3:20:20 AM: Cannot read property 'includes' of undefined
3:20:20 AM:   40 |   includeCollections = [_constants.SHOP, _constants.CONTENT]
3:20:20 AM:   41 | }) => {
3:20:20 AM: > 42 |   const client = (0, _createClient.createClient)(shopName, accessToken, apiVersion); // Convenience function to namespace console messages.
3:20:20 AM:      |                                                 ^
3:20:20 AM:   43 |
3:20:20 AM:   44 |   const formatMsg = msg => _chalk.default`\n{blue gatsby-source-shopify/${shopName}} ${msg}`;
3:20:20 AM:   45 |
3:20:20 AM: 
3:20:20 AM:   TypeError: Cannot read property 'includes' of undefined
3:20:20 AM:   
3:20:20 AM:   - create-client.js:14 createClient
3:20:20 AM:     [repo]/[gatsby-source-shopify]/create-client.js:14:16
3:20:20 AM:   
3:20:20 AM:   - gatsby-node.js:42 Object.sourceNodes
3:20:20 AM:     [repo]/[gatsby-source-shopify]/gatsby-node.js:42:49
3:20:20 AM:   
3:20:20 AM:   - api-runner-node.js:256 runAPI
3:20:20 AM:     [repo]/[gatsby]/dist/utils/api-runner-node.js:256:37
3:20:20 AM:   
3:20:20 AM:   - api-runner-node.js:375 resolve
3:20:20 AM:     [repo]/[gatsby]/dist/utils/api-runner-node.js:375:15
3:20:20 AM:   
3:20:20 AM:   - debuggability.js:384 Promise._execute
3:20:20 AM:     [repo]/[bluebird]/js/release/debuggability.js:384:9
3:20:20 AM:   
3:20:20 AM:   - promise.js:518 Promise._resolveFromExecutor
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:518:18
3:20:20 AM:   
3:20:20 AM:   - promise.js:103 new Promise
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:103:10
3:20:20 AM:   
3:20:20 AM:   - api-runner-node.js:374 Promise.mapSeries.plugin
3:20:20 AM:     [repo]/[gatsby]/dist/utils/api-runner-node.js:374:12
3:20:20 AM:   
3:20:20 AM:   - util.js:16 tryCatcher
3:20:20 AM:     [repo]/[bluebird]/js/release/util.js:16:23
3:20:20 AM:   
3:20:20 AM:   - reduce.js:166 Object.gotValue
3:20:20 AM:     [repo]/[bluebird]/js/release/reduce.js:166:18
3:20:20 AM:   
3:20:20 AM:   - reduce.js:155 Object.gotAccum
3:20:20 AM:     [repo]/[bluebird]/js/release/reduce.js:155:25
3:20:20 AM:   
3:20:20 AM:   - util.js:16 Object.tryCatcher
3:20:20 AM:     [repo]/[bluebird]/js/release/util.js:16:23
3:20:20 AM:   
3:20:20 AM:   - promise.js:547 Promise._settlePromiseFromHandler
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:547:31
3:20:20 AM:   
3:20:20 AM:   - promise.js:604 Promise._settlePromise
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:604:18
3:20:20 AM:   
3:20:20 AM:   - promise.js:649 Promise._settlePromise0
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:649:10
3:20:20 AM:   
3:20:20 AM:   - promise.js:729 Promise._settlePromises
3:20:20 AM:     [repo]/[bluebird]/js/release/promise.js:729:18
3:20:20 AM:   
3:20:20 AM: 
3:20:20 AM: not finished source and transform nodes - 0.125s
3:20:20 AM: Skipping functions preparation step: no functions directory set
```

Builds fine on localhost.
Takes a long while though.