File Not Found when extracting file with directory separator '/' from an ASAR package generated on Windows

I have an ASAR package that was generated on Windows using '\' directory separators. The file is located within the package at 'test\test1.json'. When I call asar.extractFile using the filepath as 'test/test1.json' the method throws a File Not Found exception. Some of the documentation I found states that using '/' is the proper way to reference the file within the archive.

I was expecting to be able to call asar.extractFile with a path using '/' on both Windows and Linux and have the library locate the file whether the archive was generated on Windows or Linux.

Is this a bug or would I need to detect the OS in use when generating the package and adjust my path to use the correct directory separator?