On the current documentation page: https://amp.dev/documentation/components/amp-experiment/
It has no mention of 'none'. This was noticed by a client, and fix this.
We did document none is a reserved keyword. Closing the issue.
"Variants don鈥檛 have to sum up to 100%. In that case, there will be a portion of the traffic allocated to a variant named聽none, which is a reserved keyword that indicates no variant was allocated."
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We did document
noneis a reserved keyword. Closing the issue."Variants don鈥檛 have to sum up to 100%. In that case, there will be a portion of the traffic allocated to a variant named聽none, which is a reserved keyword that indicates no variant was allocated."