Exclusion Doesn't Work in passthrough

[josiahbryan]

I've tried everything I can to get the plugin to NOT add in a certain subfolder of my project to the concat'd stylesheet output, but no no avail. Here's my config from ember-cli-build:

sassOptions: {
	includePaths: [],
	onlyIncluded: true,
	passthrough: {
		include: ['app/styles/**/*','node_modules/**/**'],
		exclude: ['app/sfcs/*'],
		annotation: 'Funnel (styles, no SFC styles)'
	}
},

(The node_modules inclusion above is an attempt to replicate the default tree, because these options cause my app.scss to fail on @import "ember-cli-bootstrap-4/bootstrap"; Eventually, I got bootstrap working again with @import "../../node_modules/bootstrap/scss/bootstrap"; but I digress.)

I thought that by setting includePaths:[] and onlyInclude: true would cause the plugin to bypass generating it's own inclusion tree (which is what the source seems to say), and then I could give the Funnel my own opts. According to docs, exclude takes precedence over include - but even with these options set, I still see the styles in app/sfcs/ present in the output.

Any advice on how to just exclude one folder from the compiled output...?