Describe the bug
In my scenario, I believe I have a date whose zone instance came from a separate node module, and thus the instanceof Zone check fails. I see you have duck checking in the normalizeZone function to handle this use-case.
However, it appears to be written with the wrong assumption that offset is a getter property, whereas it seems actually to be defined as a function in Zone.js. This causes the check to fail unexpectedly.
Describe the bug In my scenario, I believe I have a date whose zone instance came from a separate node module, and thus the
instanceof Zonecheck fails. I see you have duck checking in thenormalizeZonefunction to handle this use-case.However, it appears to be written with the wrong assumption that
offsetis a getter property, whereas it seems actually to be defined as a function in Zone.js. This causes the check to fail unexpectedly.