Bundled output has mixed line-endings

[tmillr]

It's probably not a huge issue (integration or end-to-end tests should determine if it is) as we're not publishing a library (whose code could be further used/bundled downstream). I heard that it might cause an issue on Nodejs on Linux however.

Ideas For Fix

Either don't bundle (which is what creates the mixed line-endings), or use a tool post-bundle to convert all line-endings to LF. One idea is to use Terser, which will also potentially minify, as well and provide a final source map (useful for coverage reports). Terser will parse into AST and then emit all LF line-endings. Parsing into AST instead of blindly replacing all CRLF with LF is better as it is possible (I think) for there to be CRLF in positions other than source code line endings (e.g. maybe a string literal could contain one).