serverless-offline v8.6 and later unloads all modules when running on Windows, breaking plugins

[coyoteecd]

Bug Report

We are using serverless-offline in combination with (deprecated) serverless-offline-assume-role plugin to connect to a stage-specific AWS account. When upgrading to serverless-offline v8.6, we've noticed that the plugin doesn't work anymore, the credentials are "lost" after a few requests.

I did some debugging and I believe the issue is introduced by #1230 . The regexes that check for node_modules filepath were expanded to include the path separator, and they account only for the Unix-style separator. We use Windows for our dev boxes, and therefore serverless-offline keeps unloading all modules, regardless of whether they are in node_modules or not.

[dnalborczyk]

@coyoteecd v9 was released a couple days ago. could you see if that fixes your problems? worker threads are now used by default. if you want the handler to reload for development you can use --reloadHandler, which creates new lambda instances and discards previous ones.

closing this in the meanwhile. please open a new issue if this does not fix your issue.