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[REBOL] read URL => error, exists? URL => false

From: princepawn::lycos::com at: 11-Sep-2000 13:29

>> read
connecting to: ** User Error: Failed login to as anonymous. Check your login. ** Where: read
>> exists?
connecting to: == false
is this a valid set of responses? Or, because there was a read error in both cases, should an error always be thrown? I have a piece of code which behaves in certain ways based on errors and other ways based on failures and unfortunately the behavior for a failure is being triggered when the behavior for error should occur in both cases.