My issue is JSPM / SystemJS manually inserting CSS dependencies (namely Angular Material's CSS) when I have a different pipeline for those (Gulp + SASS).
How can I tell JSPM to not import CSS files or interpret CSS dependencies in any way? I found only this discussion - https://github.com/jspm/jspm-cli/issues/791 - but it did not help me at all.
Seems that JSPM prefers local package overrides rather than turning off CSS features completely.
The culprit of my original issue is Angular Material's package.json, which contains the following JSPM configuration:
"shim": {
"angular-material": {
"deps": [ "./angular-material.css!" ]
}
}
So what really solved my issue was to override that configuration:
jspm install angular-material -o '{ shim: {} }'