without this change the pattern for stubs contains an unnecessary / which corrupts the location search (e.g. /_files is converted to //_files and there is no such path) with this change we're removing that value fixes #216
without this change the pattern for stubs contains an unnecessary / which corrupts the location search (e.g. /_files is converted to //_files and there is no such path) with this change we're removing that value fixes #216