Re: [presentation-api] Multiple presentation URLs including non-http/https URL

That's a good point. The specification is clear that behavior for schemes over than `http` and `https` is not defined, but in that case, we probably want to clarify that implementations must ignore the URLs that they do not understand, so that an `https` URL can be used as a fallback to a URL that the user-agent does not understand.

One way to solve this would be to complete current step 5.1 to say something like:

"and add the resulting absolute URL (if any, **and if the resulting scheme is supported**) to `presentationUrls`"

... and introduce a new step 6. that says:

"If `presentationUrls` is an empty list, then throw a `NotSupportedError` and abort all remaining steps"

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Received on Friday, 12 January 2018 14:57:29 UTC