haskey raises exception for missing key

[nlw0]

I just hit a nasty issue. haskey works fine for existing keys, but for missing keys it raises and exception instead of returning false.

GoogleCloud.jl/src/collection.jl

Line 149 in c312ca4

response = storage(:Object, :get, store.bucket_name, name; session=store.session, alt="", fields="")

Something it taking the HTTP request response, with 404, and instead of simply returning the erroneous response, it's raising an exception. What could be causing this, something just within this module, or in HTTP.jl?