Unexpected Node reference when using ember canary

[bantic]

(Note: In order to discover this issue I had to first comment out the dom-helper-patches that are mentioned in #255).

When running ember fastboot with ember version 2.9.0-alpha.4 and ember-cli-fastboot version 1.0.0-beta.8, an error occurs during page rendering when the Ember code attempts to access Node.DOCUMENT_FRAGMENT_NODE. This comes from glimmer's dom-helper#isDocumentFragment method. This appears like it may be an oversight in glimmer. There is a node-dom-helper.ts file that may be intended to be used by fastboot instead, but it isn't part of the ember build afaict.

edit: fix linked issue number from 225->255

[bantic]

This actually works fine if you use the latest ember alpha (bower install ember#alpha), so the issue is likely fixed somewhere between 2.9.0-alpha.4 and master.