Confusion of docs of Request pattern '?' .

[lwintermelon]

devtools-protocol/pdl/browser_protocol.pdl

Lines 6501 to 6505 in 6866f7c

	# Request pattern for interception.
	experimental type RequestPattern extends object
	properties
	# Wildcards (`'*'` -> zero or more, `'?'` -> exactly one) are allowed. Escape character is
	# backslash. Omitting is equivalent to `"*"`.

The document says "'?' -> exactly one", but http?://httpbin.org matches both http://httpbin.org and https://httpbin.org, should it be "'?' -> zero or one" precisely or maybe I misunderstood it？