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Fail a draft-76 connection of a header does not contain any digits.
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@@ -85,7 +85,8 @@ module WebSocket
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end
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def number_from_key(key)
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key.scan(/[0-9]/).join('').to_i(10)
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number = key.scan(/[0-9]/).join('')
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number == '' ? Float::NAN : number.to_i(10)
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end
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def spaces_in_key(key)
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