I have already tried '--ignore-failed-read', but the problem is that it doesn't only ignore failed reads on the -T files. It ignores all failed reads.

Use the SourceMapDevToolPlugin for a more fine grained configuration

Internal Sass features have also moved into the module system, so we have complete control over the global namespace.

withindex.js, we have a single source of truth, giving fine grained control on what we expose to the outside world.