file:/// prefixes for paths do weird things

[kpgalligan]

Basically, the logic tries to strip out the slases, but also results in extra characters on the end. Should decide if we support URL syntax at all, and possibly replace file system code with something more robust (okio or just use platform-specific).

See: https://touchlab.slack.com/archives/C014V5FPQS2/p1639426036036200 for more info (not a public slack, so sorry if you can't open it)