I am using Pattern Lab Node v2 and v3 on Windows, with Node v6.9.5, using the Gulp Edition.

Expected Behavior

PatternEngines that support more than one common file extension for their template type should be forgiving and accomodate user preference. Examples

• Handlebars: .handlebars vs .hbs - pattern-lab/patternengine-node-handlebars@8c48eb4
• React: .jsx vs .js - pattern-lab/patternengine-node-react@d945e2b
• Underscore: .html vs .underscore - pattern-lab/patternengine-node-underscore@de327f9

Actual Behavior

• Only one type is hard-coded into the engine. This causes problems with watches and the pattern code viewer and is detrimental to user adoption.